Section 161/1 — Dismissing Bad-Faith Private Prosecutions
Statutory text (Thai original)
ในคดีราษฎรเป็นโจทก์ หากความปรากฏต่อศาลเองหรือมีพยานหลักฐานที่ศาลเรียกมาว่าโจทก์ฟ้องคดีโดยไม่สุจริตหรือโดยบิดเบือนข้อเท็จจริง เพื่อกลั่นแกล้งหรือเอาเปรียบจำเลยหรือโดยมุ่งหวังผลอย่างอื่นยิ่งกว่าประโยชน์ที่พึงได้โดยชอบ ให้ศาลยกฟ้อง และห้ามมิให้โจทก์ยื่นฟ้องในเรื่องเดียวกันนั้นอีกการฟ้องคดีโดยไม่สุจริตตามวรรคหนึ่งให้หมายความรวมถึงการที่โจทก์จงใจฝ่าฝืนคำสั่งหรือคำพิพากษาของศาลในคดีอาญาอื่นซึ่งถึงที่สุดแล้วโดยปราศจากเหตุผลอันสมควรด้วย
English translation
In a case where a private person is plaintiff, if it appears to the court itself, or from evidence which the court has summoned, that the plaintiff has brought the case in bad faith or by distorting the facts, in order to harass or take advantage of the defendant, or with an aim beyond the benefit lawfully to be obtained, the court shall dismiss the charge, and the plaintiff shall be prohibited from filing a charge on the same matter again. The filing of a case in bad faith under paragraph one shall include the plaintiff's intentional violation, without reasonable cause, of a court order or judgment in another criminal case that has become final.
This English translation is provided for reference only and has not yet been firm-verified — always rely on the Thai original.
Firm annotation
This provision is an anti-abuse filter aimed specifically at private prosecutions, in which a private person rather than the public prosecutor brings the charge. It empowers the court, on its own initiative or from evidence it summons, to dismiss a case brought in bad faith, by distortion of facts, for harassment, or for an ulterior motive, and it bars re-filing on the same matter. Paragraph two extends the concept of bad faith to a plaintiff who intentionally flouts a final order or judgment in another criminal case without reasonable cause. It complements the general defective-charge power in Section 161 by targeting the plaintiff's purpose rather than the form of the pleading, and reflects reforms curbing strategic or vexatious private prosecutions.
Why this matters in practice
This section matters most to people who find themselves sued by a private complainant using the criminal courts as a pressure tactic, a common concern in defamation and business disputes. It gives a defendant a route to have such a case thrown out at an early stage, with a bar on re-filing. For anyone thinking of bringing a private prosecution, the message is equally clear: a case launched to harass or gain leverage risks dismissal and forfeiture of the right to sue again on that matter. If you are targeted by, or considering, a private prosecution, seek advice on whether Section 161/1 applies.
Frequently asked questions
Can a Thai court dismiss a private criminal case brought to harass someone?
Yes. Under Section 161/1, if a private prosecution is brought in bad faith or by distorting the facts to harass or exploit the defendant, the court must dismiss it and bar the plaintiff from re-filing on the same matter.
What counts as filing a case in bad faith under Section 161/1?
Bad faith includes distorting the facts to harass or exploit the defendant, or an ulterior aim, and also intentionally violating a final court order or judgment in another criminal case without reasonable cause.