Is there an immigration court in Thailand?

Not as a separate institution. The Immigration Act allocates immigration decisions to different bodies: an appeal against exclusion from entry goes to the Minister, an appeal against revocation of permission to stay goes to the Immigration Commission, an ordinary court decides whether an official may keep detaining someone beyond the administrative limit, and the criminal courts hear prosecutions for offences under the Act. Representation therefore means different things depending on which of those a case is in.

What does a lawyer do in Thai immigration proceedings?

In the administrative appeals, the work is preparing a submission in the prescribed form, aimed at the specific ground relied on, and filing it with the competent official inside the forty-eight hour deadline. In detention matters, it is responding to the official's application for continued detention, which the Court may grant only where it finds it necessary and only in periods of not more than twelve days at a time. Where a prosecution has begun, it becomes criminal defence work with an immigration subject.

How long can immigration detention be extended by a court?

The administrative period is up to forty-eight hours from arrival at the official's office, extendable to a maximum of seven days with the reason recorded. Beyond that the official must apply to the Court, which may order further detention if it finds it necessary, for periods not exceeding twelve days at each application. That structure is what makes continued detention something a lawyer can actually be heard on rather than simply informed about.

Can I challenge an immigration decision in the administrative court?

Immigration decisions may be challengeable as administrative acts of a state agency, and challenges to administrative acts in Thailand generally sit with a separate administrative court system rather than the ordinary civil courts. Whether that route is open in a specific case, and whether it is worth taking alongside or instead of the appeal routes in the Immigration Act, depends on the decision itself and on what has already been filed. This is a question for a qualified lawyer with the decision in hand.

Service guide

Immigration Proceedings in Thailand.

Thailand has no separate immigration court. Which forum decides an immigration matter, what representation covers, and when a case turns criminal.

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Key facts

Does Thailand have an immigration court?: No separate immigration court. The Immigration Act sends appeals to the Minister or the Immigration Commission, uses the ordinary courts for continued detention, and the criminal courts for prosecutions under the Act.
Who decides an immigration appeal?: The Minister, for an order to leave as an excluded person. The Immigration Commission, for revocation of permission to stay. Both are decided on a 48 hour filing deadline and both decisions are final under the Act.
When does a court get involved?: When an official seeks to detain someone beyond the administrative period. The Court may order further detention where it finds it necessary, for periods not exceeding twelve days at a time.
Can an immigration offence be settled?: For most offences under the Act, yes. The Act provides for settlement through a commission that includes the Police Director General or a representative and the public prosecution, rather than prosecution.

Immigration proceedings, done properly.

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There is no immigration court in Thailand

This matters, because most people arrive at the question carrying a model from somewhere else. In the United States an immigration judge hears removal cases. Thailand does not work that way.

What the Immigration Act actually creates is a set of separate forums, each with a narrow job. An appeal against exclusion from entry goes to the Minister. An appeal against revocation of permission to stay goes to the Immigration Commission. A court gets involved when an official wants to detain someone beyond the administrative limit. And a criminal court gets involved when an offence under the Act is prosecuted rather than settled.

Representation therefore means something different depending on which of those you are in. A firm that says it "handles immigration court" without telling you which forum is not describing Thai practice.

Which forum decides what

The decision-making bodies named in the Immigration Act B.E. 2522.

Forum	What it decides
The Minister	An appeal against an order to leave the Kingdom as a person excluded from entry. Submitted within 48 hours; the order is final.
The Immigration Commission	An appeal against revocation of permission to stay temporarily. Submitted within 48 hours; the order is final.
The Court	Whether an official may continue to detain someone beyond the administrative period, in further stretches of not more than 12 days at a time.
The criminal courts	Prosecutions for offences under the Act, such as staying without permission, which carries imprisonment of up to two years or a fine of up to 20,000 baht or both.
The settlement commission	Settlement of most offences under the Act without prosecution, through a commission including the Police Director General or a representative and the public prosecution.

The Minister: An appeal against an order to leave the Kingdom as a person excluded from entry. Submitted within 48 hours; the order is final.
The Immigration Commission: An appeal against revocation of permission to stay temporarily. Submitted within 48 hours; the order is final.
The Court: Whether an official may continue to detain someone beyond the administrative period, in further stretches of not more than 12 days at a time.
The criminal courts: Prosecutions for offences under the Act, such as staying without permission, which carries imprisonment of up to two years or a fine of up to 20,000 baht or both.
The settlement commission: Settlement of most offences under the Act without prosecution, through a commission including the Police Director General or a representative and the public prosecution.

Source: Immigration Act B.E. 2522 (1979), sections 20, 22, 36, 81 and 84

Checked August 2026

Note: Immigration officers have inquiry powers like police

The Act gives the Director General and deputised officials authority to issue a subpoena, a warrant of arrest or search, to arrest, search or detain, and to conduct an inquiry into offences under the Act in the same manner as an inquiry official under the Criminal Procedure Code. That is why an immigration matter can slide into a criminal one without anyone changing buildings, and why what you say early is worth taking advice on.

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What representation actually covers

In the administrative appeals, representation is mostly preparation and speed. The submission has to be in the prescribed form, filed with the competent official inside forty-eight hours, and aimed at the specific ground relied on. There is no hearing to perform at. The work is in the document and in getting it there in time.

In detention matters, representation is closer to advocacy. Where an official applies to the Court for continued detention, there is an actual application to respond to, and the Act allows the Court to order further detention only where it finds it necessary, in periods of not more than twelve days at a time. That is a decision someone can be heard on.

Where the matter has become a prosecution, it is ordinary criminal work with an immigration subject, and it runs alongside criminal defence practice. The Act also provides for most offences to be settled through a settlement commission rather than prosecuted, which is often the more relevant conversation.

Some immigration decisions may also be challengeable as administrative acts of a state agency, which in Thailand generally sit with a separate administrative court system rather than the ordinary courts. Whether that route exists for a specific decision, and whether it is worth taking alongside or instead of the routes in the Immigration Act, is a question for a lawyer with the order in front of them.

How representation is usually organised

Identify the forum
Minister, Immigration Commission, court on detention, or prosecution. Everything downstream, including the deadline, follows from this.
Preserve the deadline
Both administrative appeals close forty-eight hours after the order is received or acknowledged. This is done first and argued about afterwards.
Assemble the record
Entry and exit stamps, the order or notice, prior applications and refusals, and anything said to an official. Immigration inquiries are conducted with criminal-procedure powers, so the record includes statements.
Respond to detention applications
Where continued detention is sought from the Court, the application is answered on necessity, and any order is limited to periods of not more than twelve days at a time.
Resolve or settle
Most offences under the Act can be settled through the settlement commission rather than prosecuted. Whether that is the right outcome depends on the consequences that attach to each route.

When representation is worth it

When a decision has been made against you and a deadline is running, when detention is being extended, or when an immigration matter has attracted an inquiry rather than a form. In those situations the value is procedural: the right forum, inside the right window, answering the right ground.

It is worth less where the question is really about a future application. A refused application with no order attached is usually better addressed by preparing the next one properly than by looking for a proceeding to bring.

On fees, the shape follows the forum. An administrative appeal is a bounded document prepared to a deadline, and most firms quote that as a fixed fee. Responding to detention applications or running a prosecution is normally hourly, because the timetable belongs to the court rather than the firm. No credible published source gives professional fee ranges for this work, so compare written quotes and ask what happens if the matter extends.

Related work sits close by. Status-based claims run through asylum and refugee claims, disputes about nationality through citizenship disputes, and the overstay and removal side through the wider immigration lawyer in Thailand practice.

This page is general information, not legal advice. Which forum applies and what it can do depends on the exact decision in your case, so speak with a qualified professional.

Common questions

Frequently asked questions

Is there an immigration court in Thailand?: Not as a separate institution. The Immigration Act allocates immigration decisions to different bodies: an appeal against exclusion from entry goes to the Minister, an appeal against revocation of permission to stay goes to the Immigration Commission, an ordinary court decides whether an official may keep detaining someone beyond the administrative limit, and the criminal courts hear prosecutions for offences under the Act. Representation therefore means different things depending on which of those a case is in.
What does a lawyer do in Thai immigration proceedings?: In the administrative appeals, the work is preparing a submission in the prescribed form, aimed at the specific ground relied on, and filing it with the competent official inside the forty-eight hour deadline. In detention matters, it is responding to the official's application for continued detention, which the Court may grant only where it finds it necessary and only in periods of not more than twelve days at a time. Where a prosecution has begun, it becomes criminal defence work with an immigration subject.
Can immigration officers arrest and question people?: Yes. The Immigration Act gives the Director General and deputised officials authority to issue subpoenas and warrants of arrest or search, to arrest, search and detain, and to conduct inquiries into offences under the Act in the same manner as an inquiry official under the Criminal Procedure Code. That is why an immigration issue can become a criminal matter without any change of venue, and why advice on what to say is worth taking early rather than after a statement has been given.
How long can immigration detention be extended by a court?: The administrative period is up to forty-eight hours from arrival at the official's office, extendable to a maximum of seven days with the reason recorded. Beyond that the official must apply to the Court, which may order further detention if it finds it necessary, for periods not exceeding twelve days at each application. That structure is what makes continued detention something a lawyer can actually be heard on rather than simply informed about.
Can I challenge an immigration decision in the administrative court?: Immigration decisions may be challengeable as administrative acts of a state agency, and challenges to administrative acts in Thailand generally sit with a separate administrative court system rather than the ordinary civil courts. Whether that route is open in a specific case, and whether it is worth taking alongside or instead of the appeal routes in the Immigration Act, depends on the decision itself and on what has already been filed. This is a question for a qualified lawyer with the decision in hand.

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