Extradition from Thailand: How the Procedure Works and What an Extradition Lawyer Does

Who decides extradition in Thailand?

The process is not a single decision by the police or an embassy. Under section 5 of the Extradition Act, the Attorney General, or a designated person, is the Central Authority coordinating requests. For a state with an extradition treaty, section 8 directs the request to that authority; a state without such a treaty uses diplomatic channels, bringing in the Ministry of Foreign Affairs. Under section 13, a sensitive diplomatic request may be referred for Cabinet consideration. Under section 14, the Central Authority screens the request and directs the public prosecutor to seek an arrest warrant from a court when the statutory conditions are met.

The public prosecutor presents the judicial application, the court of first instance decides whether the statutory evidential conditions justify detention for surrender, and the Court of Appeal examines an appeal under section 21. A court order does not itself put the person on an aircraft: sections 9 and 22 also contemplate a decision by the Thai government on surrender. It would therefore be misleading to say that Cabinet approval is mandatory in every case, or that the court alone can complete extradition.

The Criminal Court in Bangkok is a documented forum in extradition proceedings, not a court that the Extradition Act expressly designates as the sole venue for every arrest. The Court of Justice describes the Criminal Court and other criminal courts in Bangkok, as well as provincial courts, and acknowledges that the Criminal Court may accept a case outside its territory or transfer it. Counsel must inspect the actual arrest warrant, prosecutor’s petition and hearing notice rather than assume an arrest in Phuket or Pattaya will necessarily be heard in Bangkok or in the nearest provincial court. Detailed local arrangements belong to the Bangkok court guide and Phuket arrest guide.

Which law and treaty govern the request?

Thailand's starting point is the Extradition Act B.E. 2551 (2008), which replaced the 1929 Act. Section 4 gives effect to applicable treaty provisions where the national Act and treaty interact; the actual treaty must be checked for the requesting country and offence. Section 7 generally requires conduct criminal in both states and punishable by death or at least one year's imprisonment or equivalent deprivation of liberty. Connected lesser offences may be included under its second paragraph. The criminal-law labels need not match: what matters is the conduct and applicable punishment, not simply whether both documents say “fraud”.

The European Arrest Warrant is not Thailand's extradition procedure: it operates between EU member states, not between Thailand and an EU state. Nor is Thailand a party to the European Convention on Human Rights, so an application to Strasbourg is not a Thai domestic appeal. Multilateral instruments and bilateral treaties should be assessed individually; membership of an international organisation is not proof of a specific extradition treaty. General background on how treaties change obligations is set out separately in the treaty guide.

The ASEAN Treaty on Extradition was signed on 14 November 2025, but the ASEAN treaty registry still lists it as not in force as at 24 October 2026. It therefore cannot be treated as a presently operative region-wide extradition route; the actual bilateral treaty or the Thai Act’s non-treaty procedure must be checked.

What happens from the foreign request to the hearing?

A formal request should contain the evidence and supporting documents prescribed for the procedure. Under section 8, papers placed before a Thai court must be translated into Thai and certified. The court may admit the foreign request and accompanying materials without requiring every foreign witness to testify afresh. Defence counsel therefore needs to scrutinise the documents themselves, including the person's identity, the description of alleged acts, the foreign warrant or judgment and the translation: a blanket expectation of live cross-examination of overseas witnesses may be unrealistic.

An urgent case may begin earlier. Section 15 allows a state to ask for provisional arrest while it assembles its formal papers. Under section 16, after this arrest the person must be taken without delay to a public prosecutor for a court petition concerning detention pending the proper request. These words do not mean that police may freely hold someone for 60 days without seeing a judge. The prosecution must use the court process; the 60/90-day rule concerns whether the formal extradition accusation reaches the court, not a licence for unreviewed police custody.

How long can someone be held, and is bail possible?

There is no single reliable “maximum extradition detention” of 60 or 90 days. Before the substantive request, section 16 requires release where the court does not receive the extradition accusation within 60 days from the provisional arrest, or within a court-set period that cannot extend beyond 90 days from arrest. Release on that basis cancels the particular provisional-arrest request and bars a new provisional arrest on the same grounds, but does not prevent a later ordinary extradition request. For a person already facing the substantive extradition hearing, the Act provides a different detention route under section 18; the section 16 cap cannot simply be transplanted to it.

At the hearing, section 18 directs the court to apply relevant Criminal Procedure Code rules to detention and proceedings where the Extradition Act has no specific rule. A person may petition for provisional release (bail); the court must inquire whether the public prosecutor objects and consider any objection. That is a mechanism to request release, not a promise of bail, and the precise conditions depend on the individual decision and applicable procedure. Counsel should gather a verified identity, lawful residence details, a proposed contact arrangement and records relevant to appearing at every hearing, rather than assuming that a passport or a monetary deposit by itself secures release.

After the court makes its section 19 detention-for-extradition order, section 20 prohibits surrender during the first 30 days measured from that order, not necessarily from the later date when the order becomes final. A different 90-day clock begins when the detention-for-surrender order becomes final: if the person is not surrendered by then, release is required unless the court granted an extension on a prosecutor’s petition filed before that 90-day limit. Section 22 also requires Thai government consideration and completion of handover within the applicable period. The Act does not specify a fixed outer limit for a court-authorised extension. Keep the section 19 order date, the date of finality, the appeal deadline and the extension petition separate.

Can a Thai national be extradited? What about a second nationality?

Thai nationality does not create an unconditional prohibition. Under section 12, extradition of a Thai national may proceed where an applicable treaty provides for it, the person consents, or Thailand has concluded a reciprocity arrangement with the requesting state. The precise treaty and evidence of citizenship therefore matter. Counsel should obtain Thai identification, passport and nationality records where applicable, and check whether a second nationality changes a treaty rule without assuming it eliminates Thai citizenship.

For a foreign national, the same section 19 identity and evidential checks still apply. The nationality stated in a foreign request can be inaccurate or outdated. The judge must determine whether the arrested person is the person sought and whether the relevant statutory conditions are met; a dual-nationality argument is not a substitute for producing reliable citizenship evidence. The separate dual citizenship guide explains the wider issue without duplicating country procedure.

What does the court check, and what can be appealed?

Section 19 requires the court to examine the identity and nationality of the person and the statutory grounds for detention for surrender, including a prima facie evidential threshold and whether the offence is extraditable rather than a specifically political or military offence. If the evidence is insufficient, the court orders release; section 19 nevertheless preserves a special 72-hour interval after the order is read in which the prosecutor may announce an appeal. If the prosecutor gives that notice within the interval, custody may continue pending the appeal, which must still be lodged within the prescribed 30 days. These 72 hours are not a universal first-arrest period.

Under section 21 either the prosecutor or the requested person has 30 days from reading of the first-instance order to appeal to the Court of Appeal. The appeal focuses on whether the statutory section 19 findings had sufficient evidential support; the Court of Appeal's decision is final under that Act. In Constitutional Court case 12/2568, reported by the court on 22 October 2025, the court accepted that a foreign requested person could raise a constitutional question through the section 212 procedure, but upheld the challenged evidential and appeal-limit provisions of sections 19 and 21. That decision does not create a routine third-tier merits appeal or invalidate the finality rule.

Because the scope, forum and timing of possible challenges differ, a person should not rely on a generalised promise of a Supreme Court appeal or constitutional stay. Counsel must assess the specific order and the governing procedural route. The detailed grounds, possible constitutional issues, urgent protections and consequences of missing a deadline belong to the Thailand remedies guide.

Is consent faster, and does it waive other protections?

Sections 27 and 28 create a consent route separate from a contested hearing. Following arrest, the competent authority asks whether the person consents. Initial consent is recorded in writing; a prosecutor brings the person promptly before a court, which tests whether consent is voluntary. Consent expressed to police may be withdrawn before that judicial confirmation, but once consent is given before the court the Act says it cannot be revoked. Consent during an already pending court hearing can also end the ordinary evidential hearing and lead to an order for surrender.

Do not treat signing a form, consenting to transfer, waiving objections and waiving the speciality rule as interchangeable actions. Speciality normally concerns prosecution for pre-surrender conduct other than the offences for which surrender was authorised; its precise scope depends on the applicable treaty and conditions. Section 11 of the Thai Act sets out speciality restrictions primarily for people extradited to Thailand, not an automatic permission for Thailand to erase speciality protection when it extradites a person from Thailand. Before advising consent, a lawyer should obtain the treaty text, any surrender conditions and a reliable interpretation of the document presented to the person.

What happens if another country also requests the person?

When multiple countries ask for the same person, section 26 generally entrusts the Central Authority with deciding the destination, conditions or sequence, unless Cabinet determines otherwise. It specifies factors including treaty coverage, where the alleged conduct occurred, gravity, the order in which requests arrived, nationality and the states' procedural readiness. Neither the first request nor the person's preferred destination automatically wins. A separate Thai prosecution or prison sentence also matters: under section 24, the government may surrender, postpone surrender or arrange temporary surrender on agreed conditions.

After final court detention for surrender and government consideration, sections 20–23 regulate practical handover. If the requesting state fails without reasonable cause to take custody within the statutory or extended period, section 23 imposes a consequence for a later request concerning the same offence. A release under these provisions should be documented precisely; it is not necessarily the end of unrelated Thai proceedings, immigration action or a new legally different foreign request. Deportation and extradition are different procedures and must not be conflated.

What should the person and family prepare for a Thai lawyer?

First ask the detaining authority and counsel for the legal basis of custody: a Thai court extradition warrant, a provisional-arrest request, a domestic criminal case or an immigration measure. An INTERPOL Red Notice is a request to locate and provisionally arrest, not by itself an international arrest warrant and not proof that surrender is authorised. Thailand must still act under its law. Family members should record the person's exact name as documented, date of birth, nationality, arrest location, officer or agency, date and time of first court appearance, language needs and a safe contact for counsel.

• Get copies or photographs of the warrant, arrest record, charge or foreign judgment, court hearing notice, detention order and any Thai-language papers, obtained lawfully.
• Prepare identity and nationality evidence, lawful residence documents and any medical or interpretation requirements; ask the person which documents they actually received.
• Record the provisional-arrest date separately from the first-instance order-reading date, the final appellate decision and any handover or extension order.
• Ask whether a lawyer has been appointed: section 18 requires the court before hearing to ask if the person has counsel and, if needed and requested, to appoint one.
• Provide the requesting state's offence wording, dates of alleged conduct, possible foreign sentence and names of any coexisting Thai proceedings; do not alter or destroy originals.

Hypothetical example: a German resident is arrested in Bangkok following an urgent request from a non-treaty country. Their family receives no formal charge documents immediately. Counsel checks whether the request travelled through diplomatic channels, confirms the Thai court detention order, records the arrest date for section 16 and asks when the translated formal accusation was filed. A later full request may proceed even if the provisional detention must end; the correct next step is to evaluate the actual new court papers, not assume the matter was permanently dismissed.

A Thai-qualified lawyer can appear in the relevant court, request provisional release, check translations and evidence, safeguard the appeal date and communicate with the public prosecutor. Counsel in the requesting state must separately explain the foreign warrant, criminal charges and potential sentence. This division of responsibilities allows the family to seek documents in both countries without mistaking negotiations abroad for a stay ordered by a Thai court.

This information describes the general Thai procedure, not advice on an individual case. The site's team can coordinate cross-border defence with locally qualified counsel; request a case review.