South Korea Enacts Three-Law Judicial Reform, Expands Supreme Court, Criminalizes Distortion of Law

South Korea’s judiciary reform has been formalized into three so-called reforms, collectively labeled the “three laws,” and promulgated early on the morning of the 12th. They comprise an increase in the number of Supreme Court justices, the introduction of a new trial petition system (재판소원제) to request Supreme Court review of lower-court rulings, and a new criminal offense for “distortion of the law” (법왜곡죄). The new measures related to the petition system and the distortion-of-law crime take effect immediately, while the expansion of the Supreme Court bench is staged over three years beginning in March 2028.

The first case under the new trial-petition mechanism was filed at 00:10 on the 12th. It concerns a Syrian national who seeks the reversal of a Supreme Court ruling related to a forced expulsion order. A second petition, filed by the East Sea region’s “fishermen abducted and repatriated victims’ civil group,” requests review of a separate Seoul Central District Court ruling on delays in criminal compensation.

On the same day, a high-profile target of the new distortion-of-law statute was named: Chief Justice Jo Hee-dae. A lawyer with a Seoul-based firm submitted a complaint to the National Police Agency alleging distortion of law related to the Supreme Court’s remand decision in the case of former presidential candidate Lee Jae-myung and the Public Official Election Act. The complaint also involves Park Young-jae, a former head of the Court Administration Office, who served as the presiding judge in the remand decision.

The police accepted the complaint and assigned the case to the Seobu Police Station in Yongin, Gyeonggi Province, for investigation. The complaint marks the first official use of the new distortion-of-law provision to target sitting or former court officials in connection with a high-profile appellate decision.

During a regular nationwide meeting of court administrators, the heads of Korea’s courts expressed concern that the meanings of the new laws are unclear and warned of potential practical confusion. They called for timely legislative and administrative clarification and adjustments to “organize the statutes” and avoid implementation problems.

Beyond Korea, the reforms carry significance for the United States and international observers. The changes touch on judicial independence, the scope of appellate review, and the criminalization of alleged misrepresentation of laws, all of which can affect how South Korea enforces contracts, resolves cross-border disputes, and handles regulatory matters involving multinational firms. The expansion of the Supreme Court could influence verdicts on high-stakes commercial and security cases, while the trial-petition mechanism may alter the pathway for challenging lower-court decisions in foreign-invested projects or extradition-related matters.

For U.S. readers tracking supply chains, tech investment, or regional security dynamics, the developments signal a potentially more complex legal landscape in South Korea. Corporate risk assessments, compliance programs, and expectations of due-process protections may need to account for shifts in how appellate review and statutory interpretation are governed at the highest level.

South Korea’s government described the reform package as an effort to streamline the judiciary and address perceived gaps in oversight and accountability. Critics, however, warn of ambiguity in the new laws and the danger of over-criminalizing legal interpretation. As the changes roll out over the next several years, observers will watch how lower courts, the National Police, and the Supreme Court navigate this new framework and how it affects foreign business and international legal cooperation.

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