Defamation, Libel & Online Slander
ทนายคดีหมิ่นประมาท (สื่อและออนไลน์) · § Litigation
What to know before you act
If you are defamed online — or accused of defamation — preserve evidence before posts vanish: screenshots showing the URL, date, time and account. Criminal defamation is a compoundable offence with a short complaint window running from when you learn of the act and the offender. We assess whether statements are actionable or fair comment, send takedown letters, mediate, or file criminal and civil damages claims — and defend those who are sued.
Timing and external dependencies: The complaint window is short — seek advice as soon as you find the post; case length depends on mediation and the court.
Official fee: Civil court fees scale with the claim; private criminal prosecutions generally carry no filing fee — confirm with the court.
Timing is not a promise of an outcome or hearing date. Check the notice, limitation period and current authority rules for your matter.
What to send for the first review
Send every relevant page, a dated sequence of events, any hearing or filing deadline, and the outcome you need. This lets counsel identify urgent steps, missing evidence and a precise scope of work.
- Notarized screenshots (timestamp + URL)
- Damages evidence: canceled contracts, revenue drop
- Poster identification trail (if anonymous)
Legal Basis
Criminal Code §326–333 (criminal defamation) + Civil & Commercial Code §423 (reputation tort) + Computer Crime Act B.E. 2560 §14(1) for online posts.
📚 Official sources — check the current law and procedure before acting
- กรมที่ดิน— Department of Lands
- สำนักงานคณะกรรมการกฤษฎีกา — ตัวบทกฎหมายฉบับทางการ— Office of the Council of State
Who Needs This
Individuals falsely accused on social media, executives facing hyperbolic criticism, brands with fabricated reviews.
Required Documents
- Notarized screenshots (timestamp + URL)
- Damages evidence: canceled contracts, revenue drop
- Poster identification trail (if anonymous)
Common Pitfalls
- Posting a counter-attack and becoming a defendant yourself
- Screenshots without the URL or timestamp
- Waiting past the complaint deadline
Typical Use-cases
- Restaurant hit by fabricated Google review — 40% sales drop
- Executive falsely accused of embezzlement
- Influencer accused of promoting counterfeit goods
FAQ
- Can a true statement still be defamatory?
- Sometimes — for private matters without public benefit, courts may refuse proof of truth.
- Is a bad shop review illegal?
- Honest fair comment is protected; false statements or insults may be an offence.
- What if the poster uses a fake account?
- File a police report so officers can request data from the platform, and keep all evidence.
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Official sources — legal services
The information on this page follows the official sources below. Always check the latest version before you file.
- Office of the Judiciary— Office of the Judiciary
- Ministry of Justice— Ministry of Justice
- Lawyers Council of Thailand — Notarial Services Attorneys— Lawyers Council of Thailand
- Office of the Council of State — Thai law database— Office of the Council of State
- Royal Thai Government Gazette— Royal Thai Government Gazette
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