If a road accident in Thailand ends with you being taken to a police station rather than sent on your way, two things need to happen quickly: contact your embassy, and instruct a Thai lawyer. Everything else on this page is background so that you know what the process looks like and are not frightened by the ordinary parts of it. It is not legal advice, and at this point you need actual legal advice from someone qualified in Thai law.

Most crashes do not go this way. The ones that do share a small number of features: someone has been seriously hurt or killed, alcohol or drugs are involved, the driver left the scene, or the driving itself is alleged to have been reckless. Those are the offences the Land Traffic Act deliberately keeps out of the roadside ticket system.

Do not sign a Thai-language statement. Not one summarised by a bystander, not one summarised by the other driver, and not one summarised by an officer whose English you are not confident in. Ask for an interpreter. Ask for your embassy to be notified. Say clearly that you will sign once someone you trust has read it to you. This is the single most important thing on this page.

Why some accidents become criminal matters

What the law says

Section 140 of the Land Traffic Act B.E. 2522 (1979) allows most traffic offences to be dealt with by a warning or a fixed-penalty ticket — but it expressly excludes the offences in sections 157/1, 159, 160, 160 bis and 160 ter. Those cover drug-driving, drink-driving and failing to stop and assist after a collision. Offences in that group go to an investigating officer and to a court; they cannot be settled at the roadside.

Failing to stop and assist after a collision (ss.78 and 160, pre-2022 text) carries up to three months' imprisonment and/or a fine of 2,000–10,000 baht, and up to six months and 5,000–20,000 baht where serious injury or death results. Drink-driving that causes injury carries 1–5 years and 20,000–100,000 baht; serious injury, 2–6 years and 40,000–120,000 baht; death, 3–10 years, 60,000–200,000 baht and mandatory revocation of the licence. Driving without regard for the safety of others carries up to one year and/or 5,000–20,000 baht. Thai penalties are stated as maximums or as ranges, and what a court imposes is a separate question.

What the process looks like

  1. You are taken to the local police station serving the area where the crash happened, not to a central one.
  2. An investigating officer takes over from the traffic officer. Their job is to build a file, not to decide the case.
  3. Statements are taken, in Thai, and you will be asked to sign yours.
  4. Where drink or drugs are suspected, a test is required. Refusing a breath test does not help: the Act creates a legal presumption that you were in breach, and the police have confirmed that refusal is treated as equivalent to drink-driving. An officer may detain you for as long as necessary to complete a test.
  5. Bail may be set, commonly as a cash or property security, and commonly with conditions.
  6. Your passport may be affected. Where a case is open you may be told not to leave Thailand, and immigration matters can become tangled with the criminal ones.
  7. Compensation to any victim is often discussed in parallel, through insurers where they exist and directly where they do not.

The one part of this you can influence at every stage is the quality of the interpretation and the quality of the representation. Both are things to secure early rather than after you have already said something.

The embassy: what they will and will not do

None of that makes the call less important. Consular staff have seen this before, they know how the local process runs, and their list of lawyers is a far better starting point than an internet search made in a police station. Ask that your embassy be notified as early as you can.

A lawyer, and why quickly

Instruct one before you give a substantive statement if you can. A Thai lawyer will tell you what you are being asked, what you should and should not agree to, what bail is likely to involve, and what compensation discussions actually mean in the context of a criminal case. Your embassy holds a list; a reputable hotel or an insurer's assistance company may also be able to help. If you hold travel insurance, check whether it includes legal expenses cover — many policies do, and it is the sort of benefit people forget they have bought.

Call 1155 as well. The Tourist Police are not advocates and cannot overrule a traffic officer or an investigating officer. What they can do is put an English-speaking police officer into the room, which changes the character of the encounter more than anything else available to a visitor. That alone is worth the call, in addition to the embassy and the lawyer, not instead of them.

Things worth knowing that are easy to get wrong

If you are a passenger, a friend, or the person at home

The most useful things you can do from outside: telephone the embassy, telephone the insurer's 24-hour assistance line, gather the documents — passport details, policy number, rental agreement, the police station's name — and find a lawyer. Do not post about the case publicly, and do not offer or arrange payments to anybody on the detained person's behalf without legal advice. If the detained person is also injured, the medical and legal tracks run in parallel; medical evacuation and repatriation from Thailand explains why an open case complicates leaving.

The best defence is upstream

Almost every case that ends this way involved at least one of a very short list: alcohol, no valid licence for the vehicle, no helmet, riding at night, or leaving the scene. Those are choices made before the crash, not after it. The biggest risk factors for visiting drivers and drink-driving penalties in Thailand are worth reading while none of this is happening to you, and what to do after a road accident is the page that keeps a bad afternoon from becoming this one.

Frequently asked questions

Will I be arrested after an ordinary crash?

Usually not. A damage-only collision where you stopped, helped and cooperated is an insurance matter. Detention becomes likely where someone is seriously hurt or killed, where alcohol or drugs are involved, or where a driver left the scene.

Can they take my passport?

Where a case is open you may be told not to leave the country, and your ability to travel can be restricted. This is exactly the sort of question to put to a lawyer and to your embassy rather than to a website.

Do I have to sign the statement?

You should not sign anything you cannot read. Ask for an interpreter and for your embassy to be notified. Taking time over this is normal and reasonable, and a signature on a document you did not understand is very hard to undo.

Will my embassy get me out?

No. They can visit, notify your family, supply a list of lawyers, explain the process and raise welfare concerns. They cannot intervene in the case, pay bail or pay legal fees.

What is bail likely to involve?

It varies by the offence and by the court, and it is commonly a cash or property security with conditions attached. A lawyer will tell you what is realistic in your specific case; anything more specific from us would be guesswork.

Does paying compensation make it go away?

Compensation to a victim is a real and important part of how these matters resolve in Thailand, and it is frequently discussed alongside the criminal side. It is not a substitute for legal advice, and you should not agree a figure or sign anything recording one without a lawyer.

Can I be tried in my own country instead?

No. An offence committed on a Thai road is dealt with under Thai law by Thai courts.