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

May 28, 2024

Case Dismissed: The Impact of the Phinai Law on Ongoing Criminal Cases

Subscribe to Updates

Under Thai law, namely the Criminal Procedural Code, an injured person may bring a criminal case to a criminal court without having a public prosecutor file the case for him or her. After the court conducts an inquiry into the case, the court considers whether to accept the case for further trial and determine whether the defendant should be penalized accordingly. Private parties involved in certain types of cases, such as labor disputes or shareholder disputes, may find this a common channel to pursue.

Criminal law in Thailand recently underwent a significant change, as new legislation changed numerous criminal offenses to become phinai-fine offenses instead. However, as this is a relatively new development, there are still instances in which plaints involving phinai fines are still being submitted to the court by these private injured persons as criminal cases. But this raises the issue of whether the court can proceed with such cases.

For over a year, Thailand has enforced the Act on Phinai Fine Proceedings B.E. 2565 (2022) (ACFP) as a new legal measure to decriminalize certain types of fines for criminal penalties with less-serious offenses to phinai offenses, which results in phinai-related offenders having to pay only fines instead of facing the entire criminal procedures and penalties under the Thai Penal Code and Criminal Procedure Code, including bail submission, travel restrictions, imprisonment, and a criminal record.

What happens to ongoing trials in court for phinai offenses?

The ACFP automatically changed criminal offenses under 204 pieces of legislation, including certain offenses under the Bankruptcy Act B.E. 2483 (1940), the Determining Offenses Relating to Registered Partnership, Limited Partnership, Limited Company, Association, and Foundation Act B.E. 2499 (1956), the Labor Relations Act B.E. 2518 (1975), the Consumer Protection Act B.E. 2522 (1979), the Public Limited Companies Act B.E. 2535 (1992), and other legislation listed in the ACFP, to be phinai offenses. Once the ACFP took effect, many of these common white-collar criminal offenses were no longer criminal offenses but became phinai offenses. The practical effect of this is that many offenses are no longer considered crimes.

One of the effects of this change is that the ongoing trials for these offenses at the court are changed into phinai proceedings falling under the guidelines provided in the Regulation of the President of the Supreme Court on Trial for Phinai Cases B.E. 2565 (2023).

This regulation includes procedures and guidelines for proceeding with phinai cases that are designed explicitly for phinai offenses, such as in-absentia and asynchronous trials, paper-based hearings, and electronic proceedings. The regulation also provides for the notification of the judgment in writing without requiring the parties to attend a judgment hearing. These procedures and guidelines for phinai cases result in proceedings that are more flexible, more convenient, and faster than proceedings in civil and criminal cases.

In contrast to the Criminal Procedural Code, this regulation has a limited definition of “plaintiff” for the purposes of a phinai case. Specifically, articles 3 and 11 of the regulation provide that the plaintiff must be a “public prosecutor or government official. This narrows the scope of the eligible group of people who can file a phinai complaint with the court. These articles are designed to align with section 23 of the ACFP should the phinai offender refuse to accept the phinai accusation or to pay the phinai fine, in which case the government official must summarize the facts and the supporting documents, providing a legal basis, and send the final report to the public prosecutor to file a complaint with the court unless the legislation stipulates otherwise. This results in the plaintiff in the phinai case being narrowed down to be a public prosecutor or government official, which in effect would reduce the number of cases in which an injured person files a case directly with the court as a bargaining or pressure tool against the offender, such as offenses relating to labor disputes, shareholder disputes, director disputes, and so on.

However, a phinai accuser can still supplicate the allegation or bring its grievance through a government official so that the phinai offender can be fined. A phinai case could also be brought to court through a government official and the public prosecutor’s determination.

What if the plaintiff is not a prosecutor or government official?

The impact of section 23 of the ACFP and articles 3 and 11 of the regulation mentioned above is that if the plaintiff is not a public prosecutor or government official, the court has no other option but to dismiss the case on the grounds that the plaintiff has no authority to file a phinai case against a phinai offender. This will result in the court not accepting the case for trial.

Still, we cannot deny that the ACFP and the regulation are new procedural laws that the courts and most litigators may not have experienced or have in-depth knowledge of. Consequently, it is advised to seek local expert consultants to identify and explain the details or the updates related to the ACFP and the regulation and to analyze the strategy for ongoing phinai cases in court.

Related Professionals

Practices

Dispute Resolution and Litigation

Location

RELATED INSIGHTS​ 

March 5, 2026
Amid increasing financial globalization, Vietnam’s establishment of an International Financial Center (IFC) represents a strategic initiative to attract high-quality foreign investment and enhance the country’s position in the global financial system. In support of this objective, a Specialized Court was introduced under Resolution No. 222/2025/QH15 as a dedicated dispute resolution mechanism within the IFC framework. The Specialized Court at the IFC was subsequently operationalized by Law on the Specialized Court No. 150/2025/QH15, effective from January 1, 2026. Organizational Structure of the Specialized Court The Specialized Court at the IFC is a court within the system of the People’s Courts, organized and operating in accordance with the Law on the Specialized Court, and vested with jurisdiction to adjudicate and resolve cases at the IFC. The Specialized Court is located in Ho Chi Minh City and comprises (i) a Court of First Instance; (ii) a Court of Appeal, and (iii) a supporting apparatus. Jurisdiction of the Specialized Court The jurisdiction of the Specialized Court at the IFC is strictly defined based on both (i) the subject matter of the cases and (ii) the membership status of the parties involved. Specifically, the Specialized Court has jurisdiction over (except for cases involving public interests or the interests of the state) the following: Disputes arising from investment and business activities. Requests for recognition and enforcement in Vietnam of judgments and decisions of foreign courts and foreign arbitral awards. Requests related to dispute resolution by arbitration. Other disputes directly related to investment and business activities (to be specified by the Supreme People’s Court). Additionally, at least one party in the case must be a member of the IFC. The IFC’s membership status is established through registration, recognition as a member, or the grant of a license for establishment and operation within the IFC. In the
Read More
February 25, 2026
In December 2025, the National Assembly of Vietnam enacted a new Law on Construction, replacing the 2014 Law on Construction as amended in 2020. The 2025 Law on Construction will, in principle, take effect on July 1, 2026, subject to certain exceptions. Among its notable reforms, one development has attracted particular attention from both legal practitioners and market participants: the introduction of a statutory framework governing predetermined damages, commonly referred to as “liquidated damages.” This marks the first time liquidated damages have been expressly recognized at the level of primary legislation in Vietnam. While liquidated damages clauses have long been a common feature of construction contracts in practice, their legal enforceability has historically been subject to uncertainty. Although the new provision appears to represent a positive step toward greater legal clarity, it remains an open question whether it is sufficient, on its own, to provide a solid legal basis for the enforceability of liquidated damages clauses in construction disputes in Vietnam. What’s New? Article 86.2 of the 2025 Law on Construction provides (emphasis added): “Compensation for damages shall be determined on the basis of actual damages [or] predetermined damages corresponding to obligations under the construction contracts that are breached [and] the extent of such breaches.” This provision is significant in that it expressly recognizes predetermined damages, or liquidated damages, as a lawful basis for determining compensation for damage. However, the new law does not define “predetermined damages.” The absence of a statutory definition creates potential ambiguity as to the scope and nature of this concept and may give rise to disputes over how—and whether—a particular contractual clause qualifies as predetermined damages for the purposes of Article 86.2. Further, Article 86.2 qualifies the application of predetermined damages by requiring that such damages correspond to the obligations not fulfilled and the
Read More
February 20, 2026
Thailand’s Supreme Administrative Court has issued a decisive ruling annulling the Ministry of Labor’s notification that had granted an exemption for foreign pilots to fly domestic routes under wet‑lease arrangements. A wet lease is a leasing arrangement in which the aircraft is provided together with its foreign flight crew, including pilots, and related operational support, rather than the airline supplying its own pilots. The judgment, delivered on November 17, 2025, and published in the Government Gazette on January 30, 2026, follows a legal challenge brought by the Thai Pilots Association, which argued that the exemption unlawfully enabled foreign workers to assume a role traditionally reserved for Thai nationals. The notification in question, dated December 13, 2024, authorized foreign pilots who came as part of wet‑leased aircraft to fly domestic routes. The Thai Pilots Association disputed the legality of this rationale, asserting that the exemption was triggered by a private airline’s request rather than by any statutory necessity. The Ministry of Labor justified this measure by relying on aircraft‑specific approvals issued by the Ministry of Transport and by enabling the Department of Employment to issue corresponding work permits. Arguments Presented in the Case The Thai Pilots Association argued that the exemption undermined the interests of domestic pilots and conflicted with the policy intent of Thailand’s foreign‑worker regulatory framework. The lawsuit emphasized that the notification arose directly from a private airline company’s request to operate two A320 aircraft under a wet lease and that the measure had the practical effect of displacing Thai pilots who remained unemployed. Meanwhile, the Ministry of Labor defended the exemption as a temporary and necessary response to industry shortages and part of national efforts to support tourism and restore aviation capacity. Legal Framework Thai law establishes a general prohibition against foreign nationals piloting domestic aircraft. Section
Read More
February 9, 2026
When unauthorized credit card transactions occur, who bears responsibility—the cardholder or the issuing bank? In Thailand, a landmark 2025 ruling by the country’s Supreme Court has clarified this question, establishing a stricter standard for banks in fraud disputes and significantly strengthening consumer protections. The case centered on disputed charges where a customer claimed their credit card had been used without authorization. The bank sued to recover the amount, and both the court of first instance and the Court of Appeal ruled in favor of the bank. However, the Supreme Court overruled their judgments and decided that the customer did not need to pay for the unauthorized transactions, placing liability squarely on the bank. This ruling was based on three key findings, which are outlined below. Finding 1: Insufficient Expert Testimony In this case, the bank bore the burden of proving matters related to the credit card system’s manufacture, design, security, and operation, as required under the Consumer Case Procedure Act B.E. 2551 (2008). To meet this requirement, the bank presented testimony from two employees in its credit card department regarding ’security measures and issuance procedures. However, the Supreme Court found these witnesses unqualified as experts, as they did not present technical or academic evidence and did not possess specialized expertise in credit card technology. As a result, their testimony failed to establish that the bank’s credit card technology was sufficiently secure against fraudulent misuse. Finding 2: Contradictory Terms and Conditions The bank’s own credit card terms and conditions included a provision acknowledging that despite the card’s EMV security standards, cardholders must still exercise caution to prevent unauthorized access. The Supreme Court interpreted this clause as an explicit admission that credit card systems remain vulnerable to hacking and fraud, even with high-level security measures in place. This acknowledgment undermined the
Read More