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Anti-SLAPP — Section 161/1 Dismissal at Preliminary Examination
Private Prosecutor (corporate complainant) v Defendant (journalist / activist / employee)
Composite summary — not a single reported case. This entry distils a settled line of Thai Supreme Court (Dika / ฎีกา) authority for legal education. It is not a transcript of one reported judgment, and the heading is not a citable case number. Do not cite it as specific case law — consult a Thai-qualified lawyer for the authoritative Dika number and current application.
Facts
A corporate complainant filed a private criminal defamation prosecution against a defendant who had publicly raised concerns about the complainant — for example, an employee reporting workplace conditions, a journalist reporting on alleged misconduct, or an activist reporting on environmental harm. The defendant applied at the preliminary examination stage for dismissal under Section 161/1 of the Criminal Procedure Code, introduced in 2019 to permit dismissal of complaints filed in bad faith or to suppress legitimate criticism.
Legal Issue
Whether Section 161/1 CPC permits dismissal of private criminal defamation cases that are SLAPP-style litigation, and what evidentiary threshold the defendant must meet.
Holding
The courts have confirmed that Section 161/1 CPC empowers the court at preliminary examination — and on appeal — to dismiss prosecutions where it appears that the complaint is brought in bad faith, with intent to harass, or to impede the lawful exercise of constitutional rights (including freedom of expression and the right to petition). The defendant must adduce facts suggesting the abuse; the court may order dismissal without proceeding to full trial.
Reasoning
Section 161/1 was added to the Criminal Procedure Code to address the long-standing problem of private criminal defamation being used to silence whistleblowers, journalists, and activists. The court reads the provision purposively: it would be self-defeating if abuse-screening were available only after full trial.
Significance
Provides the first effective Thai anti-SLAPP tool. Most relevant to journalists, NGO workers, current and former employees, and consumers writing reviews.
Practical Takeaway
Defendants in suspected SLAPP cases should consider an early Section 161/1 motion supported by evidence of the underlying public-interest activity, the imbalance of power, and any prior threats. Plaintiffs should expect closer judicial scrutiny when the defendant is a journalist, employee, or activist.
Cited Statutes
- Criminal Procedure Code, Section 161/1 (added 2019)
- Criminal Procedure Code, Section 165/2
- Constitution of the Kingdom of Thailand B.E. 2560 (2017), Sections 34, 41
- Penal Code, Sections 326, 328
This entry summarises a representative line of authority from the Thai Supreme Court (ฎีกา). It is intended for general legal education only and is not a substitute for advice from a Thai-qualified lawyer. Individual Dika case numbers are being verified against primary sources; until then these entries are presented as composite doctrinal summaries.
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