Legal Dispute Over Defamation Filing Jurisdiction in Thailand

On July 29, 2026, a public debate surfaced concerning the appropriate jurisdiction for filing defamation complaints in Thailand. The dispute involves Supachai Jaismut, a list MP for the Bhumjaithai Party, and Yingcheep Atchanont, director of the Internet Law Reform Dialogue (iLaw).

According to Khaosod Online, the disagreement centers on the interpretation of Section 18 of the Criminal Procedure Code. Yingcheep previously argued that defamation cases must be filed in the location where the alleged offense occurred, specifically citing Bangkok in the context of recent political disputes. He contended that there is no legal provision allowing complainants to file charges based on their own convenience or domicile.

Supachai publicly countered this interpretation via social media, expressing disagreement with iLaw’s legal stance. He argued that defamation cases differ significantly from other types of reports, such as reporting a lost item, and suggested that the legal framework allows for broader flexibility in filing locations.

For residents and travelers, this exchange highlights an ongoing legal discourse regarding how defamation laws are applied and interpreted in the country. While this debate reflects differing legal opinions among public figures, it does not constitute a change in law. It remains to be confirmed how the judiciary will ultimately interpret these procedural rules in future cases, as the current situation remains a matter of public legal interpretation rather than a settled legislative amendment.