Reviewed by Wichuda Atthamethakon, LL.M., Thai Bar Licence 3149/2556, for ThaiLawOnline, a Thai law firm acting for foreigners since 2006.
Update log
- 4 November 2026: Added Criminal Procedure Code section 193 bis to the statute box, with Thai, English and French text
- 2 November 2026: Added the statute box with Thai, English and French text and checked the page against the official text
Thailand’s criminal justice system works differently from many Western systems. It is important for expatriates to know the procedures, rights, and expectations when facing criminal charges. This comprehensive guide explains the key aspects of Thai criminal trial procedures to help expats navigate the system effectively. Disclaimer: This guide is for general informational purposes only and is not legal advice. Thai criminal law changes regularly, and procedures may vary between courts. For advice on your specific situation, consult a licensed lawyer in Thailand.
Table of Contents
These procedures sit inside the wider framework explained in our guide to criminal law in Thailand.
Last reviewed: 21 September 2026. Every statutory citation on this page was read in Thai against the Penal Code (sections 29, 30 and 56) and the Criminal Procedure Code (sections 66, 78, 80, 87, 117, 193 bis and 229/1), and all of them check out, including the 500 baht per day rate for detention in lieu of a fine, the one year cap and the two year extension where the fine is 200,000 baht or more, and the full detention ladder of 48 hours, then 7, 48 and 84 days. Supreme Court Decision 736/2569 was read in full to its disposition: the juvenile record was properly weighed because the case was not before a Juvenile and Family Court, and the Court then suspended the sentence for two years because the defendant had repaid 20,000 baht against an 8,500 baht loss. Not verified here: the bail provision of the Constitution, the Electronic Transactions Act point, the rule on authenticating foreign documents, the stated processing times, and the section on recent reforms. Re-checked on 10 October 2026: section 29 of the Constitution B.E. 2560 read in Thai (a bail request must be considered, security may not be excessive, and refusal must rest on law), which matches; section 11 of the Electronic Transactions Act and its amendment history (2008, and Nos. 3 and 4 of 2019) read on the government’s central law register, and the reforms paragraph and the electronic-evidence line now state what section 11 provides, without the unsourced claim that further updates were proposed in 2024; Civil Procedure Code sections 46 and 47 and Criminal Procedure Code sections 13 and 15 read in Thai, and the statement that all foreign documents must be authenticated was narrowed to what section 47 requires. Still unverified: the processing times and the rest of the recent-reforms section.

Juvenile records in adult proceedings (Dika 736/2569)
Section 84 of the Juvenile and Family Court Act shields a child from having earlier proceedings held against them. Practitioners have long argued that the shield travels with the person into adulthood. Supreme Court Decision (Dika) No. 736/2569 holds that it does not.
The protection is forum-specific. It operates inside the Juvenile and Family Court. Once the same individual is an adult standing trial in an ordinary criminal court, the court may take the juvenile record into account in deciding whether to suspend the sentence under Section 56, and it can be the reason a suspension is refused.
The practical lesson runs backwards in time. A matter disposed of quickly in the juvenile forum is not disposed of permanently. Anyone advising a young client in Thailand should assume the record will resurface.
The same decision sets the counterweight on the other side of the scale. In this case, restitution of more than twice the loss, together with the guilty plea and nearly ten years without reoffending, led the Supreme Court to suspend the sentence despite the record. See our case note on Dika 736/2569.
Understanding the Thai Criminal Justice System
Thailand has a civil law system. This system is based on written laws. It is mainly guided by the Criminal Procedure Code B.E. 2477 (1934) and the Thai Penal Code. Unlike common law countries, Thai courts do not follow past decisions. However, Supreme Court rulings can still affect case outcomes. The system does not allow jury trials. All criminal cases are decided only by judges. Judges find the facts and apply the law.
The Thai Constitution B.E. 2560 (2017) sets important rules. It includes the presumption of innocence until proven guilty. It also guarantees the right to a fair trial. These constitutional protections apply equally to all individuals in Thailand, regardless of nationality.

Recent Reforms and Updates in Thai Criminal Procedure
Thailand’s criminal justice system continues to evolve to meet international standards. The 2017 Constitution strengthened protections like the right to a speedy trial and access to justice. The Electronic Transactions Act B.E. 2544 (2001), amended in 2008 and twice in 2019, recognises electronic data and signatures. Since the 2019 amendment, section 11 says in terms that a court may not refuse electronic data as evidence in a civil, criminal or any other case merely because it is electronic, and that the same applies to printouts of it. That covers emails, chat messages, social media posts and CCTV recordings, which matters to expats in online disputes or surveillance cases.
Initial Arrest and Detention Procedures
Arrest Authority and Procedures
Thai police can arrest people with or without a warrant in certain situations. Section 78 of the Criminal Procedure Code sets out when police or administrative officers may arrest without a warrant, and section 80 defines a flagrant offence. A warrantless arrest is permitted only where:
- A person is committing a flagrant offence, as defined in section 80
- Someone is found in suspicious circumstances suggesting they are about to cause harm to people or property, carrying a tool, weapon or other object that could be used to commit an offence
- There are grounds for a warrant under section 66(2), but the matter is too urgent to ask the court for one
- A suspect or defendant has escaped, or is about to escape, while on provisional release (section 117)
Upon arrest, police must:
- Inform you that you are being arrested
- Explain the charges against you
- Tell you that you may remain silent or give a statement, and that what you say may be used as evidence at trial
- Tell you that you have the right to meet and consult a lawyer
- Let you inform a relative or a person you trust of the arrest, where this is practicable and safe
Detention Time Limits
Following arrest, Thai law establishes strict time limits for detention:
Initial Police Custody: Up to 48 hours from arrival at the investigating officer’s station before being brought before a court, unless force majeure or another unavoidable necessity prevents it (section 87).
Court-Ordered Detention: After the initial 48 hours, further detention requires judicial authorization with specific limits based on offense severity.
- Minor offenses (up to 6 months imprisonment or 500 THB fine): one detention order of no more than 7 days
- Moderate offenses (6 months to 10 years imprisonment): Multiple 12-day periods, maximum 48 days total
- Serious offenses (10+ years imprisonment): Multiple 12-day periods, maximum 84 days total
The 84 days are the ceiling for the most serious offences. Section 87 adds no further period for the prosecutor: if the case is not filed in court within the court-ordered detention, the suspect must be released. Beyond the first 48 days, each further order also requires the investigator or prosecutor to show necessity and produce evidence to the court.
The law behind this page
English
Section 87
An arrested person cannot be held longer than necessary. If not released, they must be taken to court within 48 hours so the police or prosecutor can ask for a detention warrant. The court can only order remand for limited, capped periods that grow with the seriousness of the offense, and the accused may have a lawyer at the hearing. The 48 hour period runs from arrival at the inquiry official's office under Section 83, and it does not apply where there is force majeure or other unavoidable necessity.
Full text
It is prohibited to keep the arrested person in custody beyond what is necessary according to the circumstances of the case. In the case of a petty offence, the arrested person may be kept in custody only for such time as is needed to take his statement and to ascertain who he is and where his residence is. Where the arrested person is not released provisionally and there is a necessity for the purpose of the investigation or the prosecution of the case, the arrested person shall be taken to the court within forty-eight hours from the time the arrested person was brought to the office of the inquiry official under section 83, except where there is force majeure or another unavoidable necessity, by having the inquiry official or the public prosecutor file an application with the court for a warrant to detain the accused. The court shall ask the accused whether he has any objection, and the court may summon the inquiry official or the public prosecutor to explain the necessity, or may summon evidence for its consideration. In the case of a criminal offence with a maximum penalty of imprisonment not exceeding six months or a fine not exceeding five hundred baht, or both, the court has the power to order detention only once, for a period not exceeding seven days. In the case of a criminal offence with a maximum penalty of imprisonment exceeding six months but less than ten years, or a fine exceeding five hundred baht, or both, the court has the power to order detention several consecutive times, but each time must not exceed twelve days and all together must not exceed forty-eight days. In the case of a criminal offence with a maximum penalty of imprisonment of ten years or more, whether or not there is also a fine, the court has the power to order detention several consecutive times, but each time must not exceed twelve days and all together must not exceed eighty-four days. In the case under paragraph six, when the court has ordered detention for the full forty-eight days, if the public prosecutor or the inquiry official files an application with the court to detain further by claiming a necessity, the court may order further detention only when the public prosecutor or the inquiry official has shown the necessity and has brought evidence for the court to examine until the court is satisfied. In the examination under paragraph three and paragraph seven, the accused has the right to appoint a lawyer to state objections and to question witnesses. If the accused has no lawyer because there has not yet been compliance with section 134/1 and the accused so requests, the court shall appoint a lawyer for him, and that lawyer has the right to receive a fee and expenses as prescribed in section 134/1 paragraph three, mutatis mutandis. If the inquiry official must conduct the investigation in another locality outside the jurisdiction of the court that ordered the detention of the accused, the inquiry official may file an application to transfer the detention to the court in the locality where the investigation must be conducted; and when the court that ordered the detention deems it appropriate, it shall order the transfer.
ThaiLawOnline translation
Section 78
Police or administrative officers generally cannot arrest without a warrant or court order. There are only four exceptions: a flagrant offense, a person carrying a weapon or tool under circumstances suggesting they are about to cause harm, an urgent case where a warrant ground exists but there is no time to get one, and a person fleeing while on bail.
Full text
An administrative or police officer may not arrest any person without an arrest warrant or a court order, except: (1) when that person has committed a flagrant offense as provided in Section 80; (2) when a person is found under circumstances giving reasonable suspicion that they are about to cause harm to the person or property of another, and are carrying tools, weapons, or other objects capable of being used to commit an offense; (3) when there is a ground to issue an arrest warrant against that person under Section 66(2), but there is an urgent necessity such that an arrest warrant cannot be applied for from the court; (4) where it is the arrest of an alleged offender or defendant who has fled or is about to flee while under provisional release pursuant to Section 117.
ThaiLawOnline translation
Section 83
When making an arrest, the arrester must tell the person they are being arrested and take them to the investigating officer's office. If an officer makes the arrest, the officer must state the charge, show any warrant, and advise the person of the right to silence and to a lawyer. Reasonable force may be used if the person resists or flees.
Full text
In making an arrest, the officer or private person making the arrest must inform the person to be arrested that he is being arrested, and shall order the arrested person to go, together with the arrester, to the office of the investigating officer of the locality where the arrest is made; except that if he can be taken to the office of the responsible investigating officer at that time, he shall be taken to the office of that responsible investigating officer; but if necessary, the arrested person may be taken by force. Where an officer makes the arrest, the officer must inform the arrested person of the charge; if there is an arrest warrant, it must be shown to the arrested person; and the officer must also inform him that the arrested person has the right to remain silent or to give a statement, that any statement made by the arrested person may be used as evidence in the trial, and that the arrested person has the right to meet and consult a lawyer or a person who is to be his lawyer. If the arrested person wishes to notify a relative or a person whom he trusts of the arrest, and this can be done conveniently and without obstructing the arrest or the custody of the arrested person or causing danger to any person, the officer shall permit the arrested person to do so as is appropriate to the case. In this regard, the arresting officer shall also make a record of the arrest. If the person to be arrested resists or will resist the arrest, or flees or attempts to flee, the person making the arrest has the power to use all such means or precautions as are appropriate to the circumstances of the matter in making the arrest.
ThaiLawOnline translation
Section 108Amended on 31 December 2015
This section lists the factors the official or court must weigh on a bail application, such as the seriousness of the charge, the strength of the evidence, flight risk, and possible danger. It also allows conditions on residence and, with consent, electronic monitoring, with special protection for those under eighteen.
Full text
In deciding an application for provisional release, the following matters shall be considered together: (1) the gravity of the charge; (2) the extent of the evidence already appearing; (3) the various circumstances of the case; (4) how far the applicant for bail or the security can be relied upon; (5) whether the accused or defendant is likely to abscond; (6) whether, and to what extent, danger or damage may result from the provisional release; (7) in a case where the accused or defendant is detained under a court warrant, if there is an objection by the inquiry official, the public prosecutor, the plaintiff, or the injured person, as the case may be, the court may take it into account in its decision. For the purpose of proceeding under paragraph one, the officer empowered to order provisional release or the court may also receive facts, reports, or opinions of officials whom the law charges with duties relating thereto, in support of consideration of the application. In granting provisional release, the officer empowered to order provisional release or the court may impose conditions concerning residence or any other conditions for the released person to observe, or, where that person consents, may order the use of an electronic device or any other device capable of monitoring or restricting the travel of the released person, in order to prevent flight, danger, or damage that may arise. However, if the released person is not yet eighteen years of age, then even with that person's consent, such a device may be ordered only where that person's conduct may seriously endanger others or there is other reasonable cause.
ThaiLawOnline translation
Section 173
Before a criminal trial begins, the court must ask whether the defendant has a lawyer. In death-penalty cases and cases where the defendant was eighteen or under on the day the charge was filed, the court must appoint one if the defendant has none, whether or not the defendant asks. In imprisonment cases, the court appoints one only if the defendant wants it. The court pays the appointed lawyer.
Full text
In a case carrying the penalty of death, or in a case where the defendant is not over eighteen years of age on the day the charge is filed with the court, before the trial begins the court shall ask the defendant whether the defendant has counsel; if not, the court shall appoint counsel for the defendant. In a case carrying a penalty of imprisonment, before the trial begins the court shall ask the defendant whether the defendant has counsel; if not and the defendant wishes to have counsel, the court shall appoint counsel for the defendant. The court shall pay a fee and expenses to the counsel appointed by the court under this Section, having regard to the nature of the case and to economic conditions, in accordance with the regulations prescribed by the Judicial Administration Commission with the approval of the Ministry of Finance.
ThaiLawOnline translation
Section 193 bis
In minor criminal cases, where the maximum penalty is up to three years' imprisonment, a fine up to sixty thousand baht, or both, you generally cannot appeal on the facts, only on points of law. The defendant keeps a fact appeal in limited situations, such as when actually imprisoned, given a suspended sentence, found guilty with punishment deferred, or fined more than one thousand baht.
Full text
No appeal on a question of fact shall be brought against a judgment of the Court of First Instance in a case in which the maximum penalty prescribed by law is imprisonment not exceeding three years, or a fine not exceeding sixty thousand baht, or both, except in the following cases, in which the defendant may appeal on a question of fact: (1) the defendant is sentenced to imprisonment or to confinement in lieu of imprisonment; (2) the defendant is sentenced to imprisonment but the court suspends the punishment; (3) the court finds the defendant guilty but suspends the determination of the punishment; or (4) the defendant is sentenced to a fine exceeding one thousand baht.
ThaiLawOnline translation
Section 56Amended on 8 April 2016
Where the court is to impose imprisonment not exceeding five years, whether or not a fine is also imposed, or is to impose a fine, and the person's record falls within one of the three descriptions the section gives, the court may adjudge them guilty but suspend the determination of the punishment, or determine the punishment but suspend its execution, for a period it fixes of not more than five years from the day of the judgment, and it may attach conditions for controlling their conduct.
Full text
Whoever commits an offence punishable by imprisonment or by fine, and in that case the court is to impose imprisonment not exceeding five years, whether or not a fine is also imposed, or is to impose a fine, if it appears that that person: (1) has never previously received a punishment of imprisonment; (2) has previously received a punishment of imprisonment, but it was a punishment for an offence committed negligently, or for a petty offence, or was imprisonment not exceeding six months; or (3) has previously received a punishment of imprisonment but was released from it more than five years before committing the further offence, the later offence being one committed negligently or a petty offence, and when the court has taken into account the age, personal history, conduct, intelligence, education and training, health, mental condition, disposition, occupation, and environment of that person, or the nature of the offence, or that person's sense of remorse and efforts to mitigate the harm caused, or any other extenuating circumstance, the court may adjudge that the person is guilty but suspend the determination of the punishment, or determine the punishment but suspend its execution, whether the punishment be imprisonment or a fine or both, so as to give that person an opportunity to reform within such period as the court fixes, which must not exceed five years from the day of the judgment; and the court may or may not fix conditions for controlling that person's conduct. The conditions for controlling the conduct of an offender under paragraph one may be fixed by the court, one or several as may be appropriate to the case, as follows: (1) to report in person from time to time to the official designated by the court, so that the official may question, advise, assist, or admonish the offender as it thinks fit as to conduct and occupation, or to arrange for the offender to perform social service or public benefit activities; (2) to train for or to carry on a regular lawful occupation; (3) to refrain from association, or from any conduct, that might lead to the commission of a similar offence again; (4) to undergo treatment for narcotic addiction, for physical or mental deficiency, or for any other illness, at the place and for the period fixed by the court; (5) to undergo training at the place and for the period fixed by the court; (6) to be prohibited from leaving the place of residence, or from entering any place, during the times fixed by the court, and for this purpose an electronic device or any other device capable of monitoring or restricting travel may be used; (7) to pay compensation, or otherwise to remedy the damage, to the injured person as agreed between the offender and the injured person; (8) to repair, restore, or remedy damage caused to natural resources or to the environment, or to pay compensation for that purpose; (9) to enter into a bond in such sum as the court thinks fit that the offender will not commit an act of mischief or cause danger to another person or to property; (10) any other condition that the court thinks fit to fix in order to correct or rehabilitate the offender, or to prevent the offender from committing or having the opportunity to commit an offence again, or any condition for remedying the injured person as the court thinks fit. As to the conditions fixed by the court under paragraph two, if it later appears to the court, on the application of the offender, of the offender's legal representative, of the offender's curator, of the public prosecutor, or of an official, that the circumstances relating to the control of the offender's conduct have changed, the court may, if it thinks fit, amend, add to, or revoke any of them, or may additionally fix any condition mentioned in paragraph two that it has not already fixed. If there is a breach of a bond, the provisions of Section 47 shall apply mutatis mutandis.
ThaiLawOnline translation
ไทย
มาตรา 87
ข้อความเต็ม
ห้ามมิให้ควบคุมผู้ถูกจับไว้เกินกว่าจำเป็นตามพฤติการณ์แห่งคดี ในกรณีความผิดลหุโทษ จะควบคุมผู้ถูกจับไว้ได้เท่าเวลาที่จะถามคำให้การ และที่จะรู้ตัวว่าเป็นใครและที่อยู่ของเขาอยู่ที่ไหนเท่านั้น ในกรณีที่ผู้ถูกจับไม่ได้รับการปล่อยชั่วคราว และมีเหตุจำเป็นเพื่อทำการสอบสวน หรือการฟ้องคดีให้นำตัวผู้ถูกจับไปศาลภายในสี่สิบแปดชั่วโมงนับแต่เวลาที่ผู้ถูกจับถูกนำตัวไปถึงที่ทำการของพนักงานสอบสวนตามมาตรา ๘๓ เว้นแต่มีเหตุสุดวิสัยหรือมีเหตุจำเป็นอย่างอื่นอันมิอาจก้าวล่วงเสียได้ โดยให้พนักงานสอบสวนหรือพนักงานอัยการยื่นคำร้องต่อศาลขอหมายขังผู้ต้องหานั้นไว้ ให้ศาลสอบถามผู้ต้องหาว่าจะมีข้อคัดค้านประการใดหรือไม่ และศาลอาจเรียกพนักงานสอบสวนหรือพนักงานอัยการมาชี้แจงเหตุจำเป็น หรืออาจเรียกพยานหลักฐานมาเพื่อประกอบการพิจารณาก็ได้ ในกรณีความผิดอาญาที่ได้กระทำลงมีอัตราโทษจำคุกอย่างสูงไม่เกินหกเดือนหรือปรับไม่เกินห้าร้อยบาท หรือทั้งจำทั้งปรับ ศาลมีอำนาจสั่งขังได้ครั้งเดียว มีกำหนดไม่เกินเจ็ดวัน ในกรณีความผิดอาญาที่มีอัตราโทษจำคุกอย่างสูงเกินกว่าหกเดือนแต่ไม่ถึงสิบปี หรือปรับเกินกว่าห้าร้อยบาท หรือทั้งจำทั้งปรับ ศาลมีอำนาจสั่งขังหลายครั้งติด ๆ กันได้ แต่ครั้งหนึ่งต้องไม่เกินสิบสองวันและรวมกันทั้งหมดต้องไม่เกินสี่สิบแปดวัน ในกรณีความผิดอาญาที่มีอัตราโทษจำคุกอย่างสูงตั้งแต่สิบปีขึ้นไป จะมีโทษปรับด้วยหรือไม่ก็ตามศาลมีอำนาจสั่งขังหลายครั้งติด ๆ กันได้ แต่ครั้งหนึ่งต้องไม่เกินสิบสองวัน และรวมกันทั้งหมดต้องไม่เกินแปดสิบสี่วัน ในกรณีตามวรรคหกเมื่อศาลสั่งขังครบสี่สิบแปดวันแล้ว หากพนักงานอัยการหรือพนักงานสอบสวนยื่นคำร้องต่อศาลเพื่อขอขังต่อไปอีกโดยอ้างเหตุจำเป็น ศาลจะสั่งขังต่อไปได้ก็ต่อเมื่อพนักงานอัยการหรือพนักงานสอบสวนได้แสดงถึงเหตุจำเป็น และนำพยานหลักฐานมาให้ศาลไต่สวนจนเป็นที่พอใจแก่ศาล ในการไต่สวนตามวรรคสามและวรรคเจ็ด ผู้ต้องหามีสิทธิแต่งทนายความเพื่อแถลงข้อคัดค้านและซักถามพยาน ถ้าผู้ต้องหาไม่มีทนายความเนื่องจากยังไม่ได้มีการปฏิบัติตามมาตรา ๑๓๔/๑ และผู้ต้องหาร้องขอ ให้ศาลตั้งทนายความให้ โดยทนายความนั้นมีสิทธิได้รับเงินรางวัลและค่าใช้จ่ายตามที่กำหนดไว้ในมาตรา ๑๓๔/๑ วรรคสาม โดยอนุโลม ถ้าพนักงานสอบสวนต้องไปทำการสอบสวนในท้องที่อื่นนอกเขตของศาลซึ่งได้สั่งขังผู้ต้องหาไว้ พนักงานสอบสวนจะยื่นคำร้องขอให้โอนการขังไปยังศาลในท้องที่ที่จะต้องไปทำการสอบสวนนั้นก็ได้ เมื่อศาลที่สั่งขังไว้เห็นเป็นการสมควรก็ให้สั่งโอนไป
ตรงตามข้อความในราชกิจจานุเบกษา / สำนักงานคณะกรรมการกฤษฎีกา (Verbatim from the Royal Gazette / Office of the Council of State)
มาตรา 78
ข้อความเต็ม
พนักงานฝ่ายปกครองหรือตำรวจจะจับผู้ใดโดยไม่มีหมายจับหรือคำสั่งของศาลนั้นไม่ได้ เว้นแต่ (๑) เมื่อบุคคลนั้นได้กระทำความผิดซึ่งหน้าดังได้บัญญัติไว้ในมาตรา ๘๐ (๒) เมื่อพบบุคคลโดยมีพฤติการณ์อันควรสงสัยว่าผู้นั้นน่าจะก่อเหตุร้ายให้เกิดภยันตรายแก่บุคคลหรือทรัพย์สินของผู้อื่นโดยมีเครื่องมือ อาวุธ หรือวัตถุอย่างอื่นอันสามารถอาจใช้ในการกระทำความผิด (๓) เมื่อมีเหตุที่จะออกหมายจับบุคคลนั้นตามมาตรา ๖๖ (๒) แต่มีความจำเป็นเร่งด่วนที่ไม่อาจขอให้ศาลออกหมายจับบุคคลนั้นได้ (๔) เป็นการจับผู้ต้องหาหรือจำเลยที่หนีหรือจะหลบหนีในระหว่างถูกปล่อยชั่วคราวตามมาตรา ๑๑๗
ตรงตามข้อความในราชกิจจานุเบกษา / สำนักงานคณะกรรมการกฤษฎีกา (Verbatim from the Royal Gazette / Office of the Council of State)
มาตรา 83
ข้อความเต็ม
ในการจับนั้น เจ้าพนักงานหรือราษฎรซึ่งทำการจับต้องแจ้งแก่ผู้ที่จะถูกจับนั้นว่าเขาต้องถูกจับ แล้วสั่งให้ผู้ถูกจับไปยังที่ทำการของพนักงานสอบสวนแห่งท้องที่ที่ถูกจับพร้อมด้วยผู้จับ เว้นแต่สามารถนำไปที่ทำการของพนักงานสอบสวนผู้รับผิดชอบได้ในขณะนั้น ให้นำไปที่ทำการของพนักงานสอบสวนผู้รับผิดชอบดังกล่าว แต่ถ้าจำเป็นก็ให้จับตัวไป ในกรณีที่เจ้าพนักงานเป็นผู้จับ ต้องแจ้งข้อกล่าวหาให้ผู้ถูกจับทราบ หากมีหมายจับให้แสดงต่อผู้ถูกจับ พร้อมทั้งแจ้งด้วยว่า ผู้ถูกจับมีสิทธิที่จะไม่ให้การหรือให้การก็ได้และถ้อยคำของผู้ถูกจับนั้นอาจใช้เป็นพยานหลักฐานในการพิจารณาคดีได้และผู้ถูกจับมีสิทธิที่จะพบและปรึกษาทนายความ หรือผู้ซึ่งจะเป็นทนายความ ถ้าผู้ถูกจับประสงค์จะแจ้งให้ญาติหรือผู้ซึ่งตนไว้วางใจทราบถึงการจับกุมที่สามารถดำเนินการได้โดยสะดวกและไม่เป็นการขัดขวางการจับหรือการควบคุมผู้ถูกจับหรือทำให้เกิดความไม่ปลอดภัยแก่บุคคลหนึ่งบุคคลใด ก็ให้เจ้าพนักงานอนุญาตให้ผู้ถูกจับดำเนินการได้ตามสมควรแก่กรณี ในการนี้ให้เจ้าพนักงานผู้จับนั้นบันทึกการจับดังกล่าวไว้ด้วย ถ้าบุคคลซึ่งจะถูกจับขัดขวางหรือจะขัดขวางการจับ หรือหลบหนีหรือพยายามจะหลบหนี ผู้ทำการจับมีอำนาจใช้วิธีหรือการป้องกันทั้งหลายเท่าที่เหมาะสมแก่พฤติการณ์แห่งเรื่องในการจับนั้น
ตรงตามข้อความในราชกิจจานุเบกษา / สำนักงานคณะกรรมการกฤษฎีกา (Verbatim from the Royal Gazette / Office of the Council of State)
มาตรา 108แก้ไขเมื่อ 31 ธันวาคม 2558
ข้อความเต็ม
ในการวินิจฉัยคำร้องขอให้ปล่อยชั่วคราว ต้องพิจารณาข้อเหล่านี้ประกอบ (๑) ความหนักเบาแห่งข้อหา (๒) พยานหลักฐานที่ปรากฏแล้วมีเพียงใด (๓) พฤติการณ์ต่าง ๆ แห่งคดีเป็นอย่างไร (๔) เชื่อถือผู้ร้องขอประกันหรือหลักประกันได้เพียงใด (๕) ผู้ต้องหาหรือจำเลยน่าจะหลบหนีหรือไม่ (๖) ภัยอันตรายหรือความเสียหายที่จะเกิดจากการปล่อยชั่วคราวมีเพียงใดหรือไม่ (๗) ในกรณีที่ผู้ต้องหาหรือจำเลยต้องขังตามหมายศาล ถ้ามีคำคัดค้านของพนักงานสอบสวน พนักงานอัยการ โจทก์ หรือผู้เสียหาย แล้วแต่กรณี ศาลพึงรับประกอบการวินิจฉัยได้เพื่อประโยชน์ในการดำเนินการตามวรรคหนึ่ง เจ้าพนักงานซึ่งมีอำนาจสั่งให้ปล่อยชั่วคราวหรือศาลอาจรับฟังข้อเท็จจริง รายงานหรือความเห็นของเจ้าพนักงานซึ่งกฎหมายกำหนดให้มีอำนาจหน้าที่ที่เกี่ยวกับการนั้นเพื่อประกอบการพิจารณาสั่งคำร้องด้วยก็ได้ในการอนุญาตให้ปล่อยชั่วคราว เจ้าพนักงานซึ่งมีอำนาจสั่งให้ปล่อยชั่วคราวหรือศาลจะกำหนดเงื่อนไขเกี่ยวกับที่อยู่หรือเงื่อนไขอื่นใดให้ผู้ถูกปล่อยชั่วคราวปฏิบัติ หรือในกรณีที่ผู้นั้นยินยอมจะสั่งให้ใช้อุปกรณ์อิเล็กทรอนิกส์หรืออุปกรณ์อื่นใดที่สามารถใช้ตรวจสอบหรือจำกัดการเดินทางของผู้ถูกปล่อยชั่วคราวก็ได้ ทั้งนี้ เพื่อป้องกันการหลบหนี หรือภัยอันตราย หรือความเสียหายที่อาจเกิดขึ้น แต่ถ้าผู้ถูกปล่อยชั่วคราวมีอายุไม่ถึงสิบแปดปีบริบูรณ์ แม้ผู้นั้นยินยอม จะสั่งให้ใช้อุปกรณ์ดังกล่าวได้ต่อเมื่อผู้นั้นมีพฤติการณ์ที่อาจเป็นภัยต่อบุคคลอื่นอย่างร้ายแรง หรือมีเหตุสมควรประการอื่น
ตรงตามข้อความในราชกิจจานุเบกษา / สำนักงานคณะกรรมการกฤษฎีกา (Verbatim from the Royal Gazette / Office of the Council of State)
มาตรา 173
ข้อความเต็ม
ในคดีที่มีอัตราโทษประหารชีวิต หรือในคดีที่จำเลยมีอายุไม่เกินสิบแปดปีในวันที่ถูกฟ้องต่อศาล ก่อนเริ่มพิจารณาให้ศาลถามจำเลยว่ามีทนายความหรือไม่ ถ้าไม่มีก็ให้ศาลตั้งทนายความให้ในคดีที่มีอัตราโทษจำคุก ก่อนเริ่มพิจารณาให้ศาลถามจำเลยว่ามีทนายความหรือไม่ ถ้าไม่มีและจำเลยต้องการทนายความ ก็ให้ศาลตั้งทนายความให้ให้ศาลจ่ายเงินรางวัลและค่าใช้จ่ายแก่ทนายความที่ศาลตั้งตามมาตรานี้ โดยคำนึงถึงสภาพแห่งคดีและสภาวะทางเศรษฐกิจ ทั้งนี้ ตามระเบียบที่คณะกรรมการบริหารศาลยุติธรรมกำหนดโดยความเห็นชอบจากกระทรวงการคลัง
ตรงตามข้อความในราชกิจจานุเบกษา / สำนักงานคณะกรรมการกฤษฎีกา (Verbatim from the Royal Gazette / Office of the Council of State)
มาตรา 193 ทวิ
ข้อความเต็ม
ห้ามมิให้อุทธรณ์คำพิพากษาศาลชั้นต้นในปัญหาข้อเท็จจริงในคดีซึ่งอัตราโทษอย่างสูงตามที่กฎหมายกำหนดไว้ให้จำคุกไม่เกินสามปี หรือปรับไม่เกินหกหมื่นบาท หรือทั้งจำทั้งปรับ เว้นแต่กรณีต่อไปนี้ให้จำเลยอุทธรณ์ในปัญหาข้อเท็จจริงได้ (๑) จำเลยต้องคำพิพากษาให้ลงโทษจำคุกหรือให้ลงโทษกักขังแทนโทษจำคุก (๒) จำเลยต้องคำพิพากษาให้ลงโทษจำคุก แต่ศาลรอการลงโทษไว้ (๓) ศาลพิพากษาว่าจำเลยมีความผิด แต่รอการกำหนดโทษไว้ หรือ (๔) จำเลยต้องคำพิพากษาให้ลงโทษปรับเกินหนึ่งพันบาท
ตรงตามข้อความในราชกิจจานุเบกษา / สำนักงานคณะกรรมการกฤษฎีกา (Verbatim from the Royal Gazette / Office of the Council of State)
มาตรา 56แก้ไขเมื่อ 8 เมษายน 2559
ข้อความเต็ม
ผู้ใดกระทำความผิดซึ่งมีโทษจำคุกหรือปรับ และในคดีนั้นศาลจะลงโทษจำคุกไม่เกินห้าปีไม่ว่าจะลงโทษปรับด้วยหรือไม่ก็ตามหรือลงโทษปรับ ถ้าปรากฏว่าผู้นั้น (๑) ไม่เคยรับโทษจำคุกมาก่อน หรือ (๒) เคยรับโทษจำคุกมาก่อนแต่เป็นโทษสำหรับความผิดที่ได้กระทำโดยประมาท หรือความผิดลหุโทษ หรือเป็นโทษจำคุกไม่เกินหกเดือน หรือ (๓) เคยรับโทษจำคุกมาก่อนแต่พ้นโทษจำคุกมาแล้วเกินกว่าห้าปี แล้วมากระทำความผิดอีก โดยความผิดในครั้งหลังเป็นความผิดที่ได้กระทำโดยประมาทหรือความผิดลหุโทษ และเมื่อศาลได้คำนึงถึงอายุ ประวัติ ความประพฤติ สติปัญญา การศึกษาอบรม สุขภาพ ภาวะแห่งจิต นิสัย อาชีพ และสิ่งแวดล้อมของผู้นั้น หรือสภาพความผิด หรือการรู้สึกความผิด และพยายามบรรเทาผลร้ายที่เกิดขึ้น หรือเหตุอื่นอันควรปรานีแล้ว ศาลจะพิพากษาว่าผู้นั้นมีความผิดแต่รอการกำหนดโทษหรือกำหนดโทษแต่รอการลงโทษไว้ ไม่ว่าจะเป็นโทษจำคุกหรือปรับอย่างหนึ่งอย่างใดหรือทั้งสองอย่าง เพื่อให้โอกาสกลับตัวภายในระยะเวลาที่ศาลจะได้กำหนดแต่ต้องไม่เกินห้าปีนับแต่วันที่ศาลพิพากษา โดยจะกำหนดเงื่อนไขเพื่อคุมความประพฤติของผู้นั้นด้วยหรือไม่ก็ได้ เงื่อนไขเพื่อคุมความประพฤติของผู้กระทำความผิดตามวรรคหนึ่ง ศาลอาจกำหนดข้อเดียวหรือหลายข้อตามควรแก่กรณีได้ ดังต่อไปนี้ (๑) ให้ไปรายงานตัวต่อเจ้าพนักงานที่ศาลระบุไว้เป็นครั้งคราว เพื่อเจ้าพนักงานจะได้สอบถาม แนะนำ ช่วยเหลือ หรือตักเตือนตามที่เห็นสมควรในเรื่องความประพฤติและการประกอบอาชีพ หรือจัดให้กระทำกิจกรรมบริการสังคมหรือสาธารณประโยชน์ (๒) ให้ฝึกหัดหรือทำงานอาชีพอันเป็นกิจจะลักษณะ (๓) ให้ละเว้นการคบหาสมาคมหรือการประพฤติใดอันอาจนำไปสู่การกระทำความผิดในทำนองเดียวกันอีก (๔) ให้ไปรับการบำบัดรักษาการติดยาเสพติดให้โทษ ความบกพร่องทางร่างกายหรือจิตใจ หรือความเจ็บป่วยอย่างอื่น ณ สถานที่และตามระยะเวลาที่ศาลกำหนด (๕) ให้เข้ารับการฝึกอบรม ณ สถานที่และตามระยะเวลาที่ศาลกำหนด (๖) ห้ามออกนอกสถานที่อยู่อาศัย หรือห้ามเข้าในสถานที่ใดในระหว่างเวลาที่ศาลกำหนด ทั้งนี้ จะใช้อุปกรณ์อิเล็กทรอนิกส์หรืออุปกรณ์อื่นใดที่สามารถใช้ตรวจสอบหรือจำกัดการเดินทางด้วยก็ได้ (๗) ให้ชดใช้ค่าสินไหมทดแทนหรือเยียวยาความเสียหายโดยวิธีอื่นให้แก่ผู้เสียหายตามที่ผู้กระทำความผิดและผู้เสียหายตกลงกัน (๘) ให้แก้ไขฟื้นฟูหรือเยียวยาความเสียหายที่เกิดแก่ทรัพยากรธรรมชาติ หรือสิ่งแวดล้อม หรือชดใช้ค่าเสียหายเพื่อการดังกล่าว (๙) ให้ทำทัณฑ์บนโดยกำหนดจำนวนเงินตามที่ศาลเห็นสมควรว่าจะไม่ก่อเหตุร้าย หรือก่อให้เกิดภยันตรายแก่บุคคลอื่นหรือทรัพย์สิน (๑๐) เงื่อนไขอื่น ๆ ตามที่ศาลเห็นสมควรกำหนดเพื่อแก้ไข ฟื้นฟู หรือป้องกันมิให้ผู้กระทำความผิดกระทำหรือมีโอกาสกระทำความผิดขึ้นอีก หรือเงื่อนไขในการเยียวยาผู้เสียหายตามที่เห็นสมควร เงื่อนไขตามที่ศาลได้กำหนดตามความในวรรคสองนั้น ถ้าภายหลังความปรากฏแก่ศาลตามคำขอของผู้กระทำความผิด ผู้แทนโดยชอบธรรมของผู้นั้น ผู้อนุบาลของผู้นั้น พนักงานอัยการหรือเจ้าพนักงานว่าพฤติการณ์ที่เกี่ยวแก่การควบคุมความประพฤติของผู้กระทำความผิดได้เปลี่ยนแปลงไป เมื่อศาลเห็นสมควรศาลอาจแก้ไขเพิ่มเติมหรือเพิกถอนข้อหนึ่งข้อใดเสียก็ได้ หรือจะกำหนดเงื่อนไขข้อใดตามที่กล่าวในวรรคสองที่ศาลยังมิได้กำหนดไว้เพิ่มเติมขึ้นอีกก็ได้ หรือถ้ามีการกระทำผิดทัณฑ์บนให้นำบทบัญญัติมาตรา ๔๗ มาใช้บังคับโดยอนุโลม
ตรงตามข้อความในราชกิจจานุเบกษา / สำนักงานคณะกรรมการกฤษฎีกา (Verbatim from the Royal Gazette / Office of the Council of State)
Français
Article 87
Non libéré, le suspect est présenté au tribunal sous 48 heures dès son arrivée chez l'enquêteur, sauf force majeure. Détention maximale : 7 jours, une fois, peine jusqu'à 6 mois ou 500 bahts ; 12 jours renouvelables, 48 au total, sous 10 ans ; 84 dès 10 ans, nécessité prouvée.
résumé non officiel
Article 78
Sans mandat ni ordonnance, administration et police n'arrêtent qu'en cas de : (1) flagrant délit (art. 80); (2) suspect paraissant prêt à nuire, muni d'arme, outil ou objet utilisable; (3) motif de mandat (art. 66 (2)) et urgence; (4) fuite ou risque de fuite en liberté provisoire (art. 117).
résumé non officiel
Article 83
Qui arrête annonce l'arrestation et conduit la personne, de force si nécessaire, chez l'enquêteur, force proportionnée contre résistance ou fuite. L'agent indique les charges, présente l'éventuel mandat, informe du droit au silence, de l'usage probatoire des déclarations et du droit à un avocat, et laisse si possible prévenir un proche.
résumé non officiel
Article 108Modifié le 31 décembre 2015
Liberté provisoire : gravité, preuves, circonstances, fiabilité du garant ou de la sûreté, fuite, danger; détenu sur mandat : objections de l'enquêteur, du procureur, du demandeur, de la victime; rapports officiels. Conditions, surveillance électronique consentie; mineur de 18 ans : seulement si gravement dangereux pour autrui ou autre motif.
résumé non officiel
Article 173
Peine de mort ou accusé de 18 ans au plus à la poursuite : avant l'audience, le tribunal commet un avocat s'il n'en a pas; emprisonnement encouru : si l'accusé le demande. Le tribunal paie honoraires et frais, selon un règlement de la Commission judiciaire approuvé par les Finances.
résumé non officiel
Article 193 bis
L'appel en fait d'un jugement de première instance est interdit si la peine maximale ne dépasse pas trois ans d'emprisonnement ou 60 000 bahts d'amende, ou les deux, sauf pour le prévenu : (1) condamné à l'emprisonnement ou à la détention qui le remplace ; (2) condamné à l'emprisonnement avec sursis ; (3) déclaré coupable avec sursis au prononcé de la peine ; ou (4) condamné à plus de 1 000 bahts d'amende.
résumé non officiel
Article 56Modifié le 8 avril 2016
Prison de cinq ans au plus ou amende; auteur jamais emprisonné, ou pour imprudence, contravention ou six mois au plus, ou libéré depuis plus de cinq ans, récidivant par imprudence ou contravention : vu sa situation, sursis possible au prononcé ou à l'exécution, cinq ans maximum, mise à l'épreuve facultative.
résumé non officiel
Supreme Court decisions
Sources
- Criminal Procedure Code, Office of the Council of State, retrieved 31 October 2026
- Penal Code, Office of the Council of State, retrieved 31 October 2026
- deka.supremecourt.or.th, Supreme Court of Thailand decisions database (copy held in our library), retrieved 19 February 2026
Investigation Stage and Evidence Gathering
Police Investigation Process
The investigation phase involves evidence collection by police or administrative officials under their statutory authority. During this stage, suspects have important rights:
- Right to remain silent: the inquiry official must first tell the suspect that he or she may choose not to give a statement (section 134/4).
- Right to legal counsel during questioning
- Right to interpreter services if not fluent in Thai
Prosecutorial Review
Upon completion of investigation, police submit their findings to the Public Prosecutor who determines whether to:
- File formal charges in court
- Issue a non-prosecution order
- Order continued investigation
The prosecutor must make this decision within the maximum detention period or the suspect must be released.
Pre-Trial Proceedings and Bail Applications
Bail Rights and Procedures
All people charged with crimes have the constitutional right to apply for bail under Section 29 of the Thai Constitution. However, bail is not automatically granted and depends on judicial discretion. We have an extensive article about bail in Thailand and you should have a look.
Trial Procedures and Court Structure
Court System Hierarchy
Thailand’s criminal courts operate through a three-tier system:
- Court of First Instance: Initial trial court where most criminal cases begin
- Court of Appeal: Reviews decisions from lower courts
- Supreme Court (Dika Court): Final appellate jurisdiction
Language Requirements and Translation
All criminal proceedings are conducted exclusively in Thai language. Foreign defendants have the right to:
- Court-appointed interpreters during all proceedings
- Translation of some documents (not all) into their native language
- Certified translation services for evidence and legal documents
Recent reforms emphasize professional interpretation standards, requiring complete and accurate interpretation without summarization or omission.
Evidence and Discovery Rules
Thai criminal procedure includes limited discovery compared to common law systems. Key evidence rules include:
- Witness and evidence lists: The prosecution must file its list at least 15 days before the preliminary examination or the first day of evidence; the defence files its list before the defence evidence is heard (section 229/1)
- Documentary evidence standards: A document in a foreign language must be filed with a certified Thai translation of the whole or of its material parts, as the court orders (Civil Procedure Code section 46, applied in criminal cases by section 15 of the Criminal Procedure Code). A power of attorney or similar certificate made abroad must be witnessed by a Thai consul or, where there is none, by a notary public or other authorised official with the foreign government’s certificate of that authority, when the court or the other side has reason to doubt it is genuine (section 47)
- Electronic evidence: May not be refused merely because it is electronic (Electronic Transactions Act B.E. 2544, section 11); its weight depends on how reliably it was created, stored and kept unaltered
- Judicial discretion: Judges may admit or exclude evidence based on relevance and legal standards
| Stage | Key Actions | Time Limits | Rights of Defendant |
|---|---|---|---|
| Arrest | Police arrest with or without a warrant under sections 78 to 83 CPC | Must be brought before a court within 48 hours of arriving at the station (section 87) | Right to be informed of charges, remain silent, contact family or lawyer |
| Investigation | Evidence collection, questioning, forensic checks | Within maximum detention period (up to 84 days for the most serious offences) | Right to remain silent, have legal counsel, interpreter if needed |
| Pre-Trial | Bail applications, evidence submission, judicial review | Bail decisions made quickly | Right to apply for bail, present evidence, challenge prosecution |
| Trial | Prosecution presents case, defense responds, cross-examinations | Continuous until completion | Right to interpreter, present witnesses, cross-examine |
| Sentencing | Judge delivers verdict and penalties | Sentencing immediately or later | Right to appeal, request suspended sentence (if eligible) |
| Appeals | Appeal to Court of Appeal or Supreme Court | Within 1 month of judgment | Right to legal counsel, file written appeal grounds |
Trial Process
Criminal trials follow an adversarial system with the following sequence:
- Entry of Plea: Defendant enters guilty or not guilty plea
- Prosecution Case: State presents evidence and witnesses first
- Defense Case: Defendant presents counter-evidence and witnesses
- Cross-examination: Both sides may question opposing witnesses
- Closing Arguments: Final statements from prosecution and defense
- Judgment: Court renders verdict and sentencing decision
Rights of Defendants, Especially Expats
Fundamental Constitutional Rights
All defendants in Thailand, including foreigners, enjoy constitutional protections:
- Right to remain silent and avoid self-incrimination
- Right to legal counsel at all stages of proceedings
- Right to be informed of charges in understandable language
- Right to present evidence and witnesses
- Right to cross-examine prosecution witnesses
- Right to bail consideration
- Right to appeal adverse decisions
Special Considerations for Foreign Defendants
Expatriates face unique challenges requiring additional protections:
- Embassy notification rights: Right to contact home country embassy or consulate
- Language assistance: Mandatory interpreter services during all proceedings
- Cultural considerations: Judges may take your background into account, for example in sentencing, but no rule requires it
- Extended trial duration: Foreign defendants may request permission to travel during lengthy proceedings
Immigration Issues for Expats: Criminal charges can affect immigration status. This may lead to visa loss or deportation under the Immigration Act B.E. 2522 (1979). If you have a marriage visa, you could face problems if you have family-related charges. For instance, charges like domestic violence may result in immigration holds. These holds can happen even after you are released from criminal charges. Notify your embassy immediately, as they can assist with coordinating between authorities. Our team at ThaiLawOnline has helped many expats navigate these dual proceedings to avoid unnecessary detention or expulsion
Sentencing and Penalties
Types of Punishments
The Thai Penal Code establishes five categories of punishment:
- Death penalty (for the most serious offenses)
- Imprisonment (terms varying by offense severity)
- Confinement (lighter form of custody)
- Fines (monetary penalties)
- Forfeiture of property
Sentencing Considerations
Thai courts consider multiple factors during sentencing:
- Offense severity and circumstances
- Defendant’s criminal history
- Age, education, and background
- Cooperation with authorities
- Potential for rehabilitation
Suspended sentences may be available where the court would impose imprisonment of five years or less and the offender has not been imprisoned before, or only for negligence, a petty offence or up to six months, or was released from an earlier prison term more than five years ago and the new offence is negligent or petty; the same applies where the court imposes only a fine (Penal Code section 56).
Fine Payment and Enforcement
Defendants sentenced to fines must pay within 30 days of judgment. If the fine is not paid in time, the defendant’s property must be seized or claims attached to pay it, or failing that the defendant is confined in lieu of the fine (Penal Code section 29).
- Property seizure to satisfy the fine
- Detention in lieu of fine at a rate of 500 THB per day, under Penal Code section 30. Confinement is capped at one year, or two years where the fine is 200,000 baht or more.
- Maximum detention period of 1-2 years depending on fine amount
Appeals Process in Criminal Trial Procedures in Thailand
Appeal Rights and Timelines
Defendants have the right to appeal criminal convictions within one month of judgment being read. However, appeals are subject to certain restrictions:
Limited factual appeals: Where the maximum penalty for the offence is three years’ imprisonment or less, or a fine of 60,000 baht or less, you cannot appeal on the facts (section 193 bis). The exceptions are a sentence of imprisonment or confinement in its place, a suspended sentence, a finding of guilt with punishment deferred, and a fine of more than 1,000 baht. Appeals on points of law remain open.
Appeal process stages:
- Court of Appeal: Reviews first instance decisions
- Supreme Court: Final review through “Dika appeal” process
- Written submissions: Appeals must contain detailed grounds and legal arguments
Appeal Processing Times
Recent reforms establish specific timeframes for appeal consideration:
- Court of Appeal: targets of 4 months to 1 year from receipt of the file, depending on the case category (6 months where only the sentence is appealed)
- Supreme Court: a target of 1 year from receipt of the file (6 months where only the sentence is in issue); these are targets, not limits
Since January 2023, the guidance suggests about 6 to 12 months for the Court of Appeal. For the Supreme Court, it is about one year, with some exceptions. There is nothing automatic.
Legal Representation
Right to Counsel
Thai law guarantees the right to legal representation throughout criminal proceedings. Key aspects include:
Court-appointed counsel: Where the offence carries the death penalty, or the defendant was not over 18 on the day the charge was filed in court, the court must appoint a lawyer if the defendant has none; in any case punishable by imprisonment it appoints one if the defendant has none and asks for one (section 173, and section 134/1 at the investigation stage)
Private representation: Defendants may hire private attorneys at any stage of proceedings
Language considerations: Foreign defendants should seek bilingual lawyers familiar with both Thai law and their home country’s legal systems
Choosing Legal Counsel for Criminal Trial Procedures in Thailand
When selecting criminal defense counsel, expatriates should consider:
- Experience with Thai criminal law and procedures
- Language capabilities for effective communication
- Track record with foreign client representation
- Understanding of cultural differences in legal systems
- Availability for extended proceedings
Key Differences from Western Systems
Structural Differences
Thai criminal procedure differs significantly from common law systems:
- No jury system: Judges decide all questions of fact and law
- Civil law foundation: Based on codified statutes rather than precedent
- Judicial discretion: Broader judge authority in evidence and procedure decisions
- Continuous trial system: Hearings proceed without interruption until completion
Procedural Variations
- Limited discovery: Restricted access to prosecution evidence before trial
- Different bail standards: More restrictive approach, especially for foreigners
- Longer potential pre-trial detention: Up to 84 days in court-ordered detention before the case is filed
- Mandatory interpreter services: Required by section 13 of the Criminal Procedure Code for anyone who cannot speak or understand Thai
Practical Advice for Expats
Immediate Actions Upon Arrest
If arrested in Thailand, expatriates should:
- Remain calm and respectful to avoid escalating the situation
- Exercise right to remain silent until legal counsel is present
- Request interpreter services if not fluent in Thai
- Contact embassy or consulate for assistance and notification
- Avoid signing documents without legal advice and translation
- Request legal counsel immediately and decline questioning without representation
Pre-Trial Preparation
During pre-trial detention or release on bail:
- Maintain communication with legal counsel
- Gather supporting evidence and witness information
- Understand charge implications and potential penalties
- Comply with all bail conditions to avoid revocation
- Prepare for potential language barriers in court proceedings
Trial Preparation
Before trial proceedings:
- Review evidence lists with legal counsel
- Prepare witness testimony and supporting documentation
- Understand court procedures and expected timeline
- Arrange for qualified interpreters if needed beyond court-appointed services
- Consider cultural factors that may affect case presentation
Real-Life Examples for Expats in Thai Criminal Cases
Consider a common scenario: An expat teacher accused of assault in a bar altercation. Without good legal help, they could spend up to 48 days in detention before charges are filed (assault under section 295 carries at most two years, which puts it in the 48-day band of Criminal Procedure Code section 87). However, with a strong bail application, they might be released in just a few days. This application should include proof of community ties and a Thai guarantor. In another case, a business owner accused of fraud used emails to prove their innocence. This led to a decision not to prosecute.
These examples highlight why early intervention matters. If you are married to a Thai partner and facing family dispute charges, cultural misunderstandings can make things harder. Our bilingual lawyers can help you with this.
FAQs about Criminal Trial Procedures in Thailand
How does the Thai criminal justice system work for foreigners (civil law, no jury, presumption of innocence)?
Thailand uses a civil law system based on written laws. These include the Criminal Procedure Code, the Thai Penal Code, and the Constitution from 2017. There are no jury trials; panels of career judges find facts and apply the law. All defendants, including expats, benefit from the presumption of innocence and the right to a fair trial. This means cases go through the Court of First Instance. If there is an appeal, they move to the Court of Appeal. Finally, they go to the Supreme Court (Dika). Since precedent is persuasive and not binding in Thailand, Supreme Court rulings can affect outcomes. However, lower courts do not have to follow past decisions strictly. For searchers comparing systems, think “civil law, judge-led trials, codified rules, and strong judicial discretion.
What are my rights on arrest in Thailand and what happens in the first 48 hours?
Police can make arrests with a warrant. They can also arrest without a warrant in certain situations. These situations include catching someone in the act, urgent need, or if the person might escape. When you are arrested, you must be told why. You should know the charges against you. You have the right to remain silent. You can contact your family or a lawyer. If you don’t speak Thai, you should get an interpreter. After you arrive at the investigating officer’s station, the 48-hour clock starts. You must see a judge within that time for a detention review. In this early “inquiry” phase, use your right to have a lawyer. Do not sign documents that are not translated. Also, ask for consular notification under the Vienna Convention on Consular Relations (Article 36).
How long can Thai police and courts detain a suspect before filing charges (7, 48, 84 days)?
After the first 48 hours, more detention needs a court order. The length of detention depends on the offense. Minor offenses allow one order of up to 7 days. Mid-range offenses can be held for 12-day blocks, up to 48 days. Serious offenses can be held for 12-day blocks, up to 84 days. There is no extra period for prosecutors: 84 days is the ceiling. If the case is not filed within the court-ordered detention, the suspect must be released. For expats, remember that immigration holds are different from criminal remand. Talk to your lawyer about any possible “overstay” or visa problems that could affect your release.
How does bail work in Thailand for expats, and what securities are accepted?
Bail is a constitutional right to apply (not an automatic release). Judges weigh charge severity, strength of evidence, flight risk, potential witness/evidence interference, and community ties. Foreign defendants often have to give up their passports. They may also face higher security amounts and travel bans. Leaving Thailand while on bail needs the court’s permission, and immigration is notified. Courts accept different types of securities. These include cash, bank books, fixed deposits, land title deeds, and sometimes government job guarantees. A good petition will have proof of where you live, your job, medical needs, and a Thai guarantor. This “flight-risk mitigation package” can greatly improve your chances.
What is the Thai criminal trial process and how is evidence handled (discovery, electronic evidence, interpreters)?
Trials are adversarial but judge-driven. After the plea, the prosecution presents first, followed by the defense case, cross-examination, closing arguments, and judgment/sentencing. Discovery is more limited than in common-law systems. Each side must file witness and evidence lists: the prosecution at least 15 days before its evidence is heard, the defence before its own evidence (section 229/1). The court has wide discretion on what evidence is allowed and when to schedule it. Foreign-language documents must be filed with a certified Thai translation, and a power of attorney made abroad must be legalised if the court or the other side has reason to doubt it. Electronic evidence, like emails, chats, metadata, CCTV, and phone extractions, can be used in court. This is allowed under the Electronic Transactions Act B.E. 2544. However, it must be reliable and follow the chain of custody. All court proceedings are in Thai. Court-appointed interpreters are available. The modern standard is to provide complete and accurate interpretation without summaries.
What sentences and fines can Thai courts impose, and how do suspended sentences and fine enforcement work?
Available penalties include death (for the gravest crimes), imprisonment, confinement, fines, and forfeiture. Judges assess offense gravity, circumstances, criminal history, age/education, cooperation, and rehabilitation prospects. Offenders the court would sentence to five years or less, who have not been imprisoned before (or only for negligence, a petty offence or up to six months), may be eligible for a suspended sentence or probation. Fines must be paid within 30 days of judgment (Penal Code section 29). If the fine is not paid, the state may take property. They can also change the fine to detention. This is done at a rate of 500 THB per day (Penal Code section 30). There is a maximum time limit based on the fine amount. Defendants can request installment payments or time extensions with cause.
How do criminal appeals work in Thailand (Court of Appeal & Supreme Court/Dika) and how long do they take?
You generally have one month from pronouncement of judgment to file an appeal. The Court of Appeal looks at legal issues and, in some cases, factual issues. A further appeal to the Dika (Supreme Court) can happen on certain grounds. Timelines can be different based on complexity. The courts’ published target is about 6 to 12 months at the Court of Appeal, though complex appeals take longer. Dika review usually aims to be done in about a year for standard cases. Appeals are made through written submissions. These include transcripts, documents, and specific legal arguments. It is important to keep objections and evidence issues during the trial. This helps ensure they are considered in the appeal.
Conclusion
Understanding Thai criminal trial procedures is essential for expatriates living in or visiting Thailand. The system is based on civil law and does not have jury trials. It also has special protections for foreign defendants. This creates a unique legal environment. It is important to navigate this carefully with help from a qualified lawyer.
Key principles for expats to remember include: exercising constitutional rights to remain silent and obtain legal counsel. But also understanding the importance of interpreter services and document translation, recognizing the potential for extended pre-trial detention periods. Lastly, appreciating the significant judicial discretion in Thai criminal proceedings.
The Thai criminal justice system offers basic protections for all defendants, no matter their nationality. However, the procedures can be complex, and cultural differences exist, which can affect how courts of justice handle cases. This makes having a lawyer very important for getting fair and just results. Getting help from a qualified bilingual lawyer who knows Thai law and international legal rules is important. This support gives you the best chance to succeed in Thai criminal trial procedures.
By knowing these procedures and rights, expatriates can protect themselves better in the event of a criminal complaint. They can also make informed choices when dealing with the Thai criminal justice system. This helps ensure their constitutional protections are kept during the legal process.
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