Section 100: Lapse of an order of detention
Statutory text (Thai original)
เมื่อได้มีคำพิพากษาถึงที่สุดให้กักกันผู้ใด ถ้าผู้นั้นยังมิได้รับการกักกันก็ดี ได้รับการกักกันแต่ยังไม่ครบถ้วนโดยหลบหนีก็ดี ถ้าพ้นกำหนดสามปีนับแต่วันที่พ้นโทษ โดยได้รับโทษตามคำพิพากษาแล้วหรือโดยล่วงเลยการลงโทษ หรือนับแต่วันที่ผู้นั้นหลบหนีระหว่างเวลาที่ต้องกักกัน เป็นอันล่วงเลยการกักกัน จะกักกันผู้นั้นไม่ได้
English translation
Where a final judgment has ordered the detention of any person, if that person has not yet undergone the detention, or has undergone it but not completely by reason of having escaped, then on the expiry of three years from the day on which that person was released, whether by having served the punishment under the judgment or by the punishment having lapsed, or from the day on which that person escaped during the period of detention, the detention lapses and that person may not be detained.
ThaiLawOnline translation, written from the Thai original and verified
Firm annotation
Section 100 sets the enforcement prescription for preventive detention (kakkan), completing the timing rules that begin with Section 97. While Section 97 limits the six-month window to seek preventive detention, Section 100 limits the enforcement of an order already made to three years, running from the most relevant of three start dates: release from punishment, lapse of the punishment, or absconding during detention. If the three years pass without enforcement, the preventive detention lapses. Together the two sections confine both the request for, and the carrying out of, this safety measure, consistent with its forward-looking, risk-based rationale rather than a purely punitive one.
Why this matters in practice
Preventive detention is not open-ended once ordered: under Section 100 it must be enforced within three years of the relevant start date, or it lapses. For someone with a preventive detention order who has since served their sentence, this is a real limit to check, because a stale order that was never carried out within three years can no longer be enforced. The start date depends on the facts, whether it is release, lapse of punishment, or flight, so the calculation should be verified against the record. If a preventive detention order is being raised against you, have counsel confirm whether Section 100 has run; you can book a consultation.
Cited in 1 Supreme Court decisions (1985 to 1985)
Selected citing decisions
- Decision 2470/2528 (1985)
This list is selected automatically, weighted towards judgments that turn on this section rather than ones that merely recite it when passing sentence. It has not yet been reviewed by the firm.
Counted across the firm's corpus of 83,652 Supreme Court decisions, 1921 to 2026. The count is complete; the stated year range trims rare outliers so it describes where the citations actually sit. These figures are computed by us and are not official court statistics. How we count these, and what we measured
Frequently asked questions
How long can a preventive detention order be enforced?
Under Section 100, preventive detention must be enforced within three years of release from punishment, the lapse of punishment, or absconding during detention, otherwise it lapses.
How does Section 100 relate to Section 97?
Section 97 sets a six-month limit to seek preventive detention, while Section 100 sets a three-year limit to enforce an order already made. Together they confine both the request and the enforcement.
Related guides on ThaiLawOnline
Cite this section
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Plain citation
Penal Code, s. 100 (Thailand) -
Academic citation
Penal Code (Thailand), s. 100. ThaiLawOnline, https://www.thailawonline.com/thai-penal-code/section-100/ (accessed 17 August 2026). -
Thai citation
ป.อ. มาตรา 100 -
Permalink
https://www.thailawonline.com/thai-penal-code/section-100/ -
Embed on your site
<blockquote cite="https://www.thailawonline.com/thai-penal-code/section-100/"><p>Where a final judgment has ordered the detention of any person, if that person has not yet undergone the detention, or has undergone it but not completely by reason of having escaped, then on the expiry of three years from the day on which that…</p><footer>Penal Code, s. 100 (Thailand) — <a href="https://www.thailawonline.com/thai-penal-code/section-100/">ThaiLawOnline</a></footer></blockquote>
The Thai text is authoritative. The English is an unofficial translation by ThaiLawOnline, free to reuse with attribution.