South Korea Constitutional Judges to Visit Spain and Germany

South Korean Constitutional Court judges Ma Eun-hyeok and Oh Young-jun will visit Germany and Spain in early to mid-July 2026 to study the implementation of trial complaints, according to the Constitutional Court on June 12. The delegation, which includes constitutional researchers and administrative officials, aims to gather operational expertise on allowing constitutional challenges against court judgments to enhance fundamental rights protections in South Korea.

The visit focuses on the legal mechanism known as a trial complaint, or “jaepansowon,” which allows individuals to petition a constitutional court to review whether a final court ruling violated their basic constitutional rights. Under current South Korean law, the Constitutional Court generally does not accept complaints against court judgments, creating a significant gap in judicial review compared to several European systems.

Why are South Korean judges studying Germany and Spain?

The South Korean delegation is targeting Germany and Spain because both nations operate sophisticated systems of constitutional review that permit challenges to judicial decisions. According to the Constitutional Court, the goal is to acquire “know-how” on how these courts manage the volume of cases and balance the need for fundamental rights protection with the need for legal stability.

Germany’s Federal Constitutional Court (Bundesverfassungsgericht) is widely regarded as the global benchmark for this process. Through the “Verfassungsbeschwerde,” or constitutional complaint, any person claiming that their basic rights have been violated by a public authority—including a court of law—can file a petition. This system ensures that even final judgments from the highest ordinary courts remain subject to constitutional scrutiny.

Spain offers a similar model through its Constitutional Court (Tribunal Constitucional). The Spanish system utilizes the “recurso de amparo,” a specific legal remedy that protects citizens against the violation of fundamental rights by public authorities, including the judiciary. By visiting both countries, the South Korean judges can compare two different European approaches to judicial review.

What is the current legal status of trial complaints in South Korea?

In South Korea, the Constitutional Court Act currently restricts the ability to challenge court rulings. While the court can review the constitutionality of a law used in a trial (constitutional complaint of normality), it generally cannot review the trial’s outcome itself. This means if a judge misinterprets the constitution while delivering a verdict, the aggrieved party has little to no recourse for constitutional relief once the judgment is final.

Legal scholars and human rights advocates in South Korea have long argued that this restriction leaves a “blind spot” in the protection of human rights. The current system prioritizes the finality of judgments—the idea that once a court has spoken, the matter is closed—over the potential for correcting constitutional errors.

How would a trial complaint system change South Korean law?

Integrating a trial complaint system would shift the South Korean judiciary toward a more expansive model of rights protection. If adopted, the Constitutional Court would gain the authority to overturn or request the retrial of cases where a court’s decision itself violated the constitution, rather than just the law applied during the trial.

However, such a change introduces practical risks that the July delegation intends to investigate. A primary concern is the potential for a surge in litigation. If every final court ruling could be challenged in the Constitutional Court, it might lead to an unsustainable caseload and delay the final resolution of legal disputes.

The judges are expected to study how Germany and Spain filter these complaints. Both nations use strict admissibility criteria to ensure that only cases with significant constitutional merit proceed, preventing the constitutional court from becoming a “fourth instance” court of appeal for routine legal errors.

What are the stakes for the South Korean judiciary?

The push for trial complaints reflects a broader tension within the South Korean legal system between judicial efficiency and constitutional supremacy. By studying the European models, Judges Ma and Oh are evaluating whether the benefits of enhanced rights protection outweigh the risk of judicial instability.

The findings from the July trip will likely inform future legislative proposals or internal court policy shifts. The delegation’s focus on “know-how” suggests the court is looking for specific procedural safeguards—such as time limits, strict standing requirements, and specialized screening processes—that can make a trial complaint system viable without paralyzing the court system.