You are using an outdated browser and your browsing experience will not be optimal. Please update to the latest version of Microsoft Edge, Google Chrome or Mozilla Firefox. Install Microsoft Edge

June 16, 2026

Thailand Issues Guidelines to Combat Bad-Faith Criminal Litigation

Subscribe to Updates

The president of Thailand’s Supreme Court has issued new recommendations providing courts with criminal jurisdiction with a comprehensive framework for identifying and dismissing criminal cases brought in bad faith. Published in the Government Gazette on May 29, 2026, after being signed on May 25, the Recommendations of the President of the Supreme Court Concerning Bad-Faith Litigation in Criminal Cases B.E. 2569 were issued under Section 5 of the Act on the Organization of Courts of Justice. The recommendations took effect upon publication and represent a significant step in Thailand’s efforts to curb abusive criminal litigation, including strategic lawsuits against public participation (SLAPP).

Background

Section 161/1 of Thailand’s Criminal Procedure Code empowers courts to dismiss criminal cases filed dishonestly or with the intent to harass or take unfair advantage of a defendant. The new recommendations provide detailed guidance that courts previously lacked on identifying and handling such prosecutions.

Definition of Bad-Faith Litigation

Under recommendation 1, filing a criminal case in bad faith is defined broadly to encompass three categories:

  1. Harassment-type filings involving intimidation, threats, or creating unreasonable hardship for the defendant;
  2. Coercive filings designed to pressure the defendant into acting or refraining from acting for illegitimate benefit; and
  3. False or misleading filings that deliberately assert incorrect material facts or conceal such facts.

Circumstances Indicating Bad Faith

Recommendation 2 sets out specific circumstances that should raise a court’s suspicion that a filing may violate section 161/1. These include:

  • Filing in a distant court far from the defendant’s domicile without benefiting the adjudication;
  • Retaliation against the defendant’s advocacy for human rights, environmental protection, consumer rights, labor rights, or other public interests—effectively establishing an express anti-SLAPP framework;
  • Retaliation against whistleblowers who disclosed corruption or unlawful conduct;
  • Retaliation against individuals responsible for investigating the plaintiff’s wrongdoing or who concluded such an investigation;
  • Filing multiple cases from the same facts without reasonable cause; and
  • Penalizing a defendant who merely exercised lawful rights or duties, where the plaintiff had no reasonable cause to believe wrongdoing was committed.

Court Procedures

When there are reasonable grounds to suspect a violation of section 161/1, the court should order the plaintiff to submit an explanation and evidence, and may summon additional evidence or assign court officers to assist in the inquiry. Where the violation is manifestly clear, the court may dismiss the case at the complaint-screening stage. If the case is at the preliminary hearing stage, the court may conduct its bad-faith review concurrently and issue a single ruling.

Judicial Discretion and Safeguards

In exercising discretion, courts must consider the severity of the alleged conduct, public interest, and the credibility of the justice process. As a safeguard against misuse, if a defendant raises a section 161/1 objection as a delay tactic, the court should halt proceedings on the objection and continue the case without delay. For criminal proceedings beyond the scope of the recommendations, courts are directed to apply the principles of good-faith litigation and proportionality.

Key Takeaways

These recommendations represent the first comprehensive judicial guidance on bad-faith criminal litigation in Thailand. They expressly recognize SLAPP-type suits as abusive and enable early dismissal at the complaint-screening stage.

Plaintiffs should ensure their filings are well-grounded in fact and brought for legitimate purposes. Defendants targeted by SLAPP suits or other abusive complaints may now have stronger grounds to seek early dismissal under section 161/1.

Related Professionals

Practices

Dispute Resolution and Litigation

Location

RELATED INSIGHTS​ 

January 29, 2026
Following the recent enactment of a comprehensive legal framework addressing sexual harassment, Thailand has launched a fast-track judicial process enabling victims of online sexual harassment to obtain court orders suspending and removing obscene content from the internet. On January 26, 2026, the Office of the Judiciary introduced the “Take It Down” procedure through the Court Integral Online Service (CIOS) platform, providing victims with their first direct, expedited pathway to halt the spread of online content that violates the new legal provisions against sexual harassment. This new remedy stems from section 284/4 of the Penal Code, introduced through the Act Amending the Penal Code (No. 30) B.E. 2568, which took effect on December 30, 2025. Under section 284/4, an injured person or a competent official may petition the court to suspend dissemination of violating data and remove the data from computer systems within a court-specified period. The court may also direct system controllers, service providers, or competent authorities to carry out the order and report back within 15 days. Filing through the CIOS Platform The CIOS platform serves as the primary electronic channel for these petitions. Key features include: Individuals can file online without appearing in person and may submit petitions at any time the system is available. Users must complete digital identity verification via the ThaID application to access the CIOS. Petitions under section 284/4 are limited to requests to suspend or remove violating content. Claims for monetary damages must be pursued separately, including via separate proceedings or prefiling mediation. Streamlined Review Process The submission workflow is end-to-end electronic, and the system provides step-by-step guidance. After submission, court staff review the petition before presenting it to a judge for consideration. The court may conduct an online inquiry to obtain additional information, and in-person attendance is required only if deemed
Read More
January 20, 2026
Arbitrations seated in Thailand are governed principally by the Arbitration Act B.E. 2545 (2002) and, where applicable, the rules of institutions such as the Thailand Arbitration Center (THAC) and the Thai Arbitration Institute (TAI). While these instruments set the core procedural structure, they are not comprehensive. To fill in these procedural gaps, arbitral tribunals often look to the Thai Civil Procedure Code (CPC) and apply its principles when the Arbitration Act or institutional rules are silent. This hybrid system is familiar to local practitioners but can surprise international parties who expect a more self-contained arbitral procedure. Examples of How CPC Principles Are Applied Evidence Management: Section 25 of the Arbitration Act requires equal treatment of the parties and guarantees each side a full opportunity to present its case. At the same time, it grants tribunals broad discretion to conduct proceedings “as it deems appropriate” and expressly suggests that arbitrators may apply the CPC evidence rules where appropriate. In practice, tribunals frequently apply CPC evidence rules when addressing: submission of evidence lists, late or additional evidence, questions of admissibility and relevance, and assessment of witness and expert testimony. Amendments to Pleadings: Because the Arbitration Act and institutional rules provide limited guidance on amending pleadings, tribunals often rely on CPC principles when parties seek to amend a statement of claim or defense. Amendments may be permitted if they are sought in a timely manner, do not unfairly prejudice the opposing party, do not cause undue delay, and do not alter the nature of the dispute. These conditions closely mirror the standards applied by Thai courts under the CPC. Subpoenas and Court Assistance: Arbitral tribunals seated in Thailand generally do not have inherent subpoena powers. Section 33 of the Arbitration Act fills this gap by permitting the tribunal, an individual arbitrator, or a
Read More
January 14, 2026
Employers operating in Thailand can enforce post-employment noncompete covenants, but success depends on precise drafting and strong evidentiary support. Thai courts will uphold restraints that protect legitimate employer interests and are fair and reasonable in duration, geographic reach, and substantive scope. Overbroad covenants, however, draw judicial skepticism and may fail unless they are drafted in severable, defensible components tied to the employee’s actual role. This article synthesizes recent trends in Thai case practice, explains how Thai courts assess reasonableness in employment restraints, and provides a practical litigation-focused framework for drafting enforceable covenants, preparing evidence, and pursuing relief through the Labor Court. The Legal Framework and Its Practical Implications Thai courts evaluate noncompete covenants under general principles of contract enforceability and public policy, with particular focus on whether a restraint is necessary to protect a legitimate employer interest and proportionate to that objective. In employment matters, this analysis is shaped by the employee-protective tenor of Thai labor law and by the Labor Court’s equitable discretion in determining appropriate remedies. The practical takeaway is that standardized or broadly drafted covenants rarely survive scrutiny. Courts look for a demonstrable nexus between the employee’s actual exposure to confidential information, trade secrets, or customer relationships and the scope of the restraint. Where that nexus is weak or the restraint operates as a blanket prohibition, courts are inclined to decline enforcement or limit relief to a narrowly tailored prohibition. The employer interests most commonly recognized as legitimate in Thai practice include the protection of trade secrets, confidential business information, and goodwill tied to identifiable customer segments or territories. Courts are more likely to enforce restraints where employers can clearly document what information is at risk, why particular customer relationships matter, and how the employee was involved with those assets. Judges also look closely at the
Read More
January 8, 2026
Doing business in Thailand means operating under a strict regulatory framework. From time to time, companies may receive unexpected administrative orders from government authorities that restrict their operations, impose new compliance obligations, or levy fines and penalties. When this happens, a business may challenge the order under Thailand’s administrative law system. The primary concern in pursuing administrative litigation is timing, as strict statutory deadlines apply and missing them can permanently affect a company’s rights. First Step: Administrative Appeal Many companies assume the first step is to immediately bring the matter before the Administrative Court to seek revocation or suspension of the order. Some even attempt to request an interim injunction to stop the order from taking effect. However, Thai law generally requires that the company first challenge the order through an administrative appeal with the same agency that issued it. Only after this process is complete can the matter be taken to court. Seeking an interim injunction at this stage is also not possible. This is because Thai law does not allow a standalone application for an interim injunction; an injunction can only be requested together with the underlying complaint filed with the Administrative Court. Since a court complaint cannot be filed until the administrative appeal process has been exhausted, an injunction is usually not available at the early stage. What Are the Timeframes for Administrative Appeal? Thailand applies a two-stage administrative appeal process. The appeal must first be submitted to the same authority that issued the order, which will review its own decision. If that authority affirms its decision, the appeal is then escalated to the relevant higher authority for further review. In most cases, both stages must be completed before a company is allowed to proceed to court. The timeframe for filing an administrative appeal is very
Read More