Thailand has bilateral extradition treaties with a limited number of states. Requests from every other country are not impossible. They proceed under the Extradition Act B.E. 2551 (2008) on the basis of reciprocity, and that difference changes both the procedure and the defence strategy.
The first document to read in any extradition matter is not the Thai statute. It is the treaty, if one exists.
Treaty Requests
What the Treaty Governs
Where a treaty applies, its text controls the offences that are extraditable, the evidentiary standard the requesting state must meet, the exceptions available to the person sought, and the time limits at each stage. Two treaties can differ significantly on all four points, so a strategy that succeeded against one requesting state does not transfer automatically to another.
Treaty provisions also determine whether Thailand may refuse to surrender its own nationals, whether a speciality rule limits what the person can be prosecuted for after surrender, and whether onward extradition to a third state is permitted.
Thailand's Treaty Partners
| Region | States with a bilateral extradition treaty in force with Thailand |
|---|
| Europe | United Kingdom, Belgium |
| Americas | United States of America |
| Asia | China, South Korea, Philippines, Indonesia, Laos, Cambodia, Bangladesh |
Where no treaty is listed, a request may still be made on the basis of reciprocity.
Non-Treaty Requests and Reciprocity
Without a treaty, Thailand may still extradite where the requesting state gives an undertaking that it would act in the same way if the positions were reversed. The Extradition Act supplies the framework, and the Attorney General exercises a broader discretion at the stage before the case reaches court.
In practice this leaves more room for argument. The sufficiency of the reciprocity undertaking, the completeness of the documents submitted, and the procedural regularity of the request are all open to challenge, and the absence of an agreed evidentiary standard means the requesting state cannot simply point to a treaty article.
Mutual Legal Assistance Is a Separate Track
Requests for evidence, banking records, search and seizure or the examination of witnesses are not extradition requests. They are made under the Act on Mutual Assistance in Criminal Matters and processed by the Central Authority, on their own timetable.
These requests frequently arrive months before any extradition request, and for many clients their arrival is the earliest indication that a foreign prosecution is advancing. Assistance can be refused on grounds that mirror the extradition analysis, including the political offence exception and the absence of dual criminality, so the response given at that stage matters later.
Why the Distinction Changes the Defence
Where a treaty applies, the defence is built around its text: the offence definitions, the exceptions and the documentary requirements it imposes on the requesting state. Where no treaty applies, the defence concentrates on the statutory requirements, the adequacy of the reciprocity undertaking and the discretion of the Attorney General.
Identifying which regime governs the request, and doing so in the first days of the case, determines where the argument is most likely to succeed.
Frequently Asked Questions
Is an extradition request already filed against you ?
Whether a treaty governs your case changes what can be argued and when. Contact Herrera and Partners to have the request reviewed against the applicable instrument.
