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Detained by Police in Thailand (Pre-Arrest)
The legal distinction between detention and arrest under Thai law, the 48-hour rule, your rights at the station, and avoiding common interrogation mistakes.
Last reviewed: 2026-05-30 · by Anglo Siam Law Editorial Team · How we research this topic
TL;DR
Thai law distinguishes between brief 'questioning' and formal arrest. Once a person is restrained or transported to a station as a suspect, the protections of Criminal Procedure Code §134/1 (right to counsel) and §87 (48-hour custody limit) apply. Voluntary cooperation is not waiver — request a lawyer in writing if questioning extends.
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Overview
The legal distinction between detention and arrest under Thai law, the 48-hour rule, your rights at the station, and avoiding common interrogation mistakes. This guide explains what to expect, your rights, and the steps you should take to protect yourself in this situation.
Immediate Steps to Take
Ask clearly: 'Am I free to leave?' If not, request a lawyer (CPC §134/1) and an interpreter (CPC §13).
Do not answer substantive questions before counsel arrives. Polite silence is a right.
Provide identification but do not unlock devices or sign anything without counsel.
Note officer names, badge numbers, station, and the time of every event — your lawyer will need this timeline.
Request your embassy be informed (Vienna Convention 1963, Art. 36) at the start, not at the end.
If health issues arise, request medical attention and an independent examination.
Legal Considerations
Important legal points to understand about this situation:
CPC §87 — Custody up to 48 hours before court remand; this clock begins when the suspect is in police control.
CPC §134/1 — Right to legal counsel at interrogation, including for indigent suspects in serious cases.
CPC §134 — Statement-taking rules; the suspect must be advised of the right to remain silent.
Penal Code §157 / §200 — Official misconduct provisions apply to officers; abuse can be reported separately.
Section 28 of the Constitution (B.E. 2560 (2017) / 2017) — personal liberty and physical integrity.
Key Statutes
| Statute | Reference | Note |
|---|---|---|
| Criminal Procedure Code | B.E. 2477 (1934), §87 | 48-hour custody limit before court remand |
| Criminal Procedure Code | B.E. 2477 (1934), §134 | Statement-taking; right to silence advisement |
| Criminal Procedure Code | B.E. 2477 (1934), §134/1 | Right to legal counsel at interrogation |
| Constitution of the Kingdom of Thailand | B.E. 2560 (2017), §28-§29 | Personal liberty, presumption of innocence |
Common Mistakes to Avoid
- Assuming 'just questioning' is informal — once you are restrained or unable to leave, custody protections apply.
- Trying to 'explain' the situation without counsel — admissions are very difficult to retract.
- Unlocking phones for 'just a quick check' — devices are evidence and counsel should advise.
- Signing the daily report book (บันทึกประจำวัน) without reviewing what was written.
- Resisting physically — this creates a separate charge under Penal Code §138 (resisting officials).
Embassy Assistance
What Your Embassy Can Do
Embassies can be notified at any point during police custody. They cannot prevent questioning or order release, but they can monitor welfare and connect you with English-speaking counsel.
| Country | Phone | Website |
|---|---|---|
| United States | +66 2 205 4000 | th.usembassy.gov |
| United Kingdom | +66 2 305 8333 | www.gov.uk/world/thailand |
| Australia | +66 2 344 6300 | thailand.embassy.gov.au |
| Canada | +66 2 646 4300 | www.international.gc.ca/country-pays/thailand-thailande/bangkok.aspx?lang=eng |
| Germany | +66 2 287 9000 | bangkok.diplo.de |
| France | +66 2 657 5100 | th.ambafrance.org |
| Japan | +66 2 207 8500 | www.th.emb-japan.go.jp |
Frequently Asked Questions
When does the 48-hour clock start?
When the suspect is in police control — typically from the time of detention at the scene or arrival at the station. CPC §87 is anchored to police custody, not formal arrest paperwork.
Can I refuse to answer questions?
Yes — the right to silence applies. You should give your name and identification, and you may answer routine identification questions, but substantive case questions can be declined until counsel is present.
Will the police let me call a lawyer immediately?
Under CPC §134/1, the suspect is entitled to counsel during interrogation. In practice, the phone call is typically permitted; delays should be documented for later challenge.
What if the police take my phone?
Devices may be seized as evidence under CPC §85. They generally require a search warrant for content extraction, with limited exceptions. Do not consent to unlocking without counsel.
Is the conversation recorded?
Formal interrogation in serious cases is typically recorded; casual station-level questioning may or may not be. Your lawyer can request and review any recordings as part of the case file.
Expected Timeline
Initial stop / questioning → station transfer → formal interrogation (with right to counsel) → release or arrest decision → remand within 48 hours if held.
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