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Drug Charges in Thailand: Narcotics Code B.E. 2564 (2021)
Possession, dealing, and trafficking thresholds under the new Narcotics Code, sentencing factors, plea bargaining, and rehabilitation diversion. High-stakes YMYL information — not advice for any case.
Last reviewed: 2026-05-30 · by Anglo Siam Law Editorial Team · How we research this topic
TL;DR
Thailand's Narcotics Code B.E. 2564 (2021) replaced the prior multi-act framework. Drug offences range from regulatory (consumption, possession of small amounts) to extremely serious (production, large-scale trafficking, importation). Sentencing is heavily quantity-driven and the prior 'presumption of intent to sell' has been narrowed. Plea negotiations and rehabilitation diversion exist for lower-end offences. This is high-stakes YMYL information — for a specific case, contact a Thai-qualified lawyer immediately.
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Overview
Possession, dealing, and trafficking thresholds under the new Narcotics Code, sentencing factors, plea bargaining, and rehabilitation diversion. High-stakes YMYL information — not advice for any case. This guide explains what to expect, your rights, and the steps you should take to protect yourself in this situation.
Immediate Steps to Take
Request a lawyer immediately at the police station — CPC §134/1 right to counsel applies.
Do not consent to vehicle, room, or device searches without a warrant — let counsel test the search lawfulness.
Do not sign Thai-language statements without independent translation. Volunteering admissions is the highest-stakes mistake.
Request embassy notification under Vienna Convention 1963 Art. 36.
Preserve evidence of context (medical prescription, social setting, lack of distribution paraphernalia) — these matter at sentencing.
Identify whether diversion to drug rehabilitation under §113 of the Narcotics Code may be available.
Legal Considerations
Important legal points to understand about this situation:
Narcotics Code B.E. 2564 (2021) §90 — Penalties for possession and use; differentiation by drug category (Category I includes heroin/methamphetamine, Category II includes morphine, etc.).
Narcotics Code §113 — Rehabilitation as an alternative to prosecution for qualifying low-level offences.
Narcotics Code §145-§150 — Sentencing for production, importation, sale; quantity-based.
Cannabis Act B.E. 2565 (2022) and subsequent amendments — cannabis status changed; recreational use is restricted but no longer Category 5; verify current status as cannabis policy has been revised.
CPC §175 — Plea bargaining mechanism applies in defined circumstances.
Key Statutes
| Statute | Reference | Note |
|---|---|---|
| Narcotics Codeประมวลกฎหมายยาเสพติด | B.E. 2564 (2021) | Consolidated narcotics framework |
| Narcotics Code | B.E. 2564 (2021), §90 | Possession and use offences |
| Narcotics Code | B.E. 2564 (2021), §113 | Rehabilitation diversion |
| Cannabis Act | B.E. 2565 (2022) | Cannabis-specific regime; verify current status |
| Criminal Procedure Code | B.E. 2477 (1934), §175 | Plea bargaining |
Common Mistakes to Avoid
- Speaking to other detainees about the case — admissions made in custody are admissible.
- Assuming the prior multi-act framework still applies — citation to the wrong statute weakens a defence.
- Believing cannabis is fully legal — the regulatory regime has been amended; recreational use remains restricted in many contexts.
- Not raising legitimate medical-prescription evidence at the earliest opportunity.
- Accepting the first sentencing offer without testing rehabilitation diversion eligibility.
Embassy Assistance
What Your Embassy Can Do
Embassies can provide lists of lawyers and consular welfare visits. They cannot intervene with prosecutorial decisions or sentencing. Some embassies maintain specific lists for drug-charge cases.
| 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
Is cannabis legal in Thailand?
Cannabis was de-scheduled from Category 5 in 2022, but the regulatory framework has been amended and recreational use is restricted. Medical and limited supervised contexts are permitted. Verify the current Ministry of Public Health Notifications on permitted use.
How does Thailand classify drugs?
Under the Narcotics Code B.E. 2564 (2021), narcotics are categorised into five categories (Category I being the most controlled — heroin, methamphetamine, etc.). Penalties scale with category and quantity.
Can I get rehabilitation instead of prison?
Section 113 of the Narcotics Code provides for rehabilitation diversion for qualifying users — typically first-time, non-dealing, small-quantity. Eligibility is assessed by the prosecutor and court.
Will I be deported after a drug sentence?
A criminal conviction for drug offences typically results in deportation under Immigration Act §54 after sentence completion, with re-entry consequences. Embassies cannot prevent this.
What if it was personal use only?
Personal-use small-quantity cases may qualify for diversion or lighter sentencing under the Narcotics Code. Quantity and category are the critical thresholds — exact thresholds change with updated Ministry Notifications.
Expected Timeline
Arrest → forensic testing of substance and quantity → indictment decision → bail decision → trial preparation → sentencing or rehabilitation diversion. Drug cases often run 6-24 months at first instance.
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