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Legal service for foreign clients

Narcotics Defence — Possession, Supply & Treatment Diversion in Thailand

Quantity, the circumstances of possession, and the first statement given: those three decide a narcotics case.

Quick answer

Current narcotics law separates users from suppliers more clearly and allows eligible users into treatment instead of punishment. The decisive question becomes whether possession was for personal use or for supply, judged from quantity, packaging, paraphernalia, phone messages, and surrounding conduct. Giving a statement without counsel at the first stage is what needlessly turns many use cases into supply cases. We act from arrest, through bail and trial, to treatment applications. From THB 45,000 per court level.

From THB 45,000 From 45k/court — large quantities or multiple accused are priced higher · Bail in 1–3 days; first instance 6–15 months

Narcotics Defence — Possession, Supply & Treatment Diversion handled by Thai Law & Accounting lawyers in Thailand
Our bilingual team handles narcotics defence — possession, supply & treatment diversion end to end across Thailand.

Who this is for

  • People arrested with an exhibit who have not yet given a statement
  • Families needing an urgent bail application
  • Users seeking treatment diversion instead of punishment
  • People implicated merely by being in the same car or house
  • Foreign nationals facing charges and possible removal

What you receive

  • Attendance at questioning to control the statement from the outset
  • A legality review of the search, arrest, and exhibit handling
  • A bail application with conditions that answer flight-risk concerns
  • An eligibility assessment for treatment and the related petitions
  • A challenge to the supply element, with expert evidence where needed
  • A post-judgment plan covering appeal and condition compliance

Documents to prepare

  • The arrest record and the exhibit inventory
  • The search warrant or the stated grounds for a warrantless search
  • Urine test results or the exhibit analysis report
  • Any prior treatment or medical history
  • Employment or study certificates to support bail

How it works

5-step process

  1. 1

    Urgent intake and attendance on the suspect

    Stop unrepresented statements and take the facts directly from the arrested person.

  2. 2

    Examine the search and arrest

    Many files are weakest in the steps before the investigating officer ever sees them.

  3. 3

    Apply for bail

    Prepare security and conditions together so the decision-maker sees low risk.

  4. 4

    Choose the route: contest or treatment

    Weigh the quantity, the record, and the prosecution evidence candidly.

  5. 5

    Run the case to conclusion and plan afterwards

    Including record relief where the law allows and returning to work.

In depth

Narcotics Defence — Possession, Supply & Treatment Diversion: what foreign clients need to know

Narcotics cases differ from other criminal matters in that the outcome is largely set in the first hours rather than in the courtroom. What decides whether this is a use case or a supply case is the set of facts captured in the arrest record and the first statement. Once that is written, reshaping the picture later is very hard.

The line between a user and a supplier

Current law steers users toward treatment rather than punishment, but qualifying requires a finding that possession was genuinely for personal use. The indicators go beyond quantity: division into small packets, scales found nearby, cash present at the same time, and phone messages suggesting sale arrangements.

Many arrested people destroy their own position by over-explaining — describing, for instance, sharing with a friend who reimbursed the cost, which in law completes the supply element even though the speaker experienced it as helping a friend. This is why counsel present at questioning is worth more than finding a strong advocate afterwards.

Where quantity is modest and no trading conduct appears, we frame the case to match the facts from the outset and prepare the paperwork for treatment diversion, because filing at the right moment ends matters faster and avoids a record that follows a person for life.

The legality of the search and the arrest

Searching a person, a vehicle, and a dwelling operate under different rules. A dwelling generally requires a warrant unless a statutory exception applies. We always check the grounds relied on, whether independent witnesses attended, and when the exhibit was logged relative to entry.

Chain of custody is another commonly overlooked point — weighing, sealing, transmission for analysis, and the laboratory report. Discrepancies between the recorded weight and the reported weight do occur and can matter a great deal.

Being drawn in merely by presence

A frequent scenario: several passengers in a car or several people in a room, with the exhibit found where all could reach it. Possession in law requires knowledge of the item and control over it. Mere presence is not enough.

The defence therefore lives in physical detail: where the item sat relative to each seat, fingerprints, DNA traces if tested, and the history of use of that vehicle or room. We request further analysis where the result is likely to point clearly in a helpful direction.

Bail, and what makes an application succeed

Refusal rates are higher in narcotics matters once quantity rises, usually on flight risk and witness interference. The applications that succeed are therefore rarely the ones offering the largest sum, but the ones proposing conditions that answer those specific concerns.

Workable conditions include passport surrender, periodic reporting, a fixed address confirmed by the householder, and employment or study certificates. These must be prepared in advance, not assembled on the filing day.

Life after the case, and returning to work

For those who complete treatment, the obstacle to returning to work is usually employer screening. We advise on completion certificates and the timing of police clearance applications, so job applications are not needlessly derailed.

For foreign nationals a narcotics matter bears directly on permission to remain, so immigration planning must run alongside the criminal case from day one rather than being addressed after judgment.

Cost structure: government fees vs professional fees

ItemOfficial feeProfessional feeNote
Attending questioning and urgent adviceNo government feeTHB 12,000–20,000The step with the highest return relative to its cost
Filing for release on bailCourt petition fee at set ratesTHB 20,000–35,000Includes preparing security and the proposed conditions
Defending a personal-use possession case at first instanceCourt fees at set ratesTHB 45,000–70,000Includes the treatment-diversion application where eligible
Defending a possession-with-intent-to-supply caseCourt fees plus any additional forensic testing requestedFrom THB 90,000 per court levelRequires extensive hearings and may need expert witnesses

A supply framing reduced to personal-use possession

Situation: The exhibit was in several small packets, so the charge alleged intent to supply.

What we did: We presented a consistent use history, medical findings, and the absence of any sale contacts on the phone.

Outcome: The charge was reframed as personal-use possession and the client entered treatment.

A passenger cleared once the exhibit's position was established

Situation: The exhibit lay under the driver's seat, yet every passenger was charged jointly.

What we did: We obtained checkpoint CCTV and set out the order in which each person had boarded.

Outcome: The prosecutor declined to charge our client, the passenger.

When to act, and when waiting is fine

  • Always reach a lawyer before giving a statement

    Explanations meant to sound candid frequently concede the elements of the offence.

  • Consider treatment when the facts genuinely qualify

    It ends sooner and leaves far less long-term consequence than punishment.

  • Contest procedure when a verifiable defect exists

    A documented procedural point outweighs a bare denial.

  • Foreign nationals should plan the visa alongside the case

    Waiting for judgment usually narrows the immigration options that remain.

FAQ

Frequently asked questions

What quantity counts as supply?

Not quantity alone — packaging, paraphernalia, and messages are weighed too.

Does treatment end the case?

It can, if you meet the criteria and complete the programme as ordered.

It was in the car but not mine — am I liable?

Joint possession must be proved, and it is contestable with surrounding facts and the find location.

Is bail hard in narcotics cases?

Harder as quantity rises, but tight conditions materially improve the odds.

Are foreigners removed after the case?

There is a real risk to permission to stay, so immigration planning runs alongside.

Does a positive urine test prove use?

It is significant evidence, but it is weighed with the conduct and any exhibit found.

Is cannabis still illegal?

Its status has shifted repeatedly and depends on the use and quantity, so it must be checked case by case.

How much does a guilty plea reduce the sentence?

Commonly up to half at the court's discretion, though timing of the plea matters.

Can the record be cleared once the case ends?

The system record remains, but police clearance certificates apply time criteria.

Browse the full legal FAQ wiki

Written by: Thai Law & Accounting Services — attorneys and licensed accountants

Reviewed by: Reviewed by a Notarial Services Attorney registered with the Lawyers Council of Thailand.

Last updated: 2026-08

Information as of August 2026. Government fees and processing times change — verify with the relevant agency before acting, or let our team verify for you.

contact@tla.co.thจ.–ส. 9–18น.15 นาที