The Democratic Party of Korea has adopted a party policy to fully abolish the prosecution’s supplementary investigation authority [1].

This move represents a significant shift in the South Korean criminal justice system by redistributing power away from prosecutors. The party said that these changes will strengthen checks on investigative agencies and improve the protection of victims who are socially vulnerable [1].

The decision was finalized during a parliamentary group meeting held at the National Assembly [1]. According to the party, the amendment to the criminal procedure law is designed to create a more balanced legal framework. To ensure the safety of marginalized groups, the policy includes a mechanism where seven types of crimes targeting socially vulnerable persons will be automatically referred to the prosecution [1].

Democratic Party floor spokesperson Lee Ju-hee said the party approved the policy because it is their mission to ensure a new criminal justice system can be established [2].

However, the proposal has met with strong opposition from the People Power Party. Critics from the opposing party said the move threatens the rule of law and opens a "gate of lawlessness" [1].

The party spokesperson said Oct. 2, 2026, is the date for the policy adoption [3]. This timeline suggests a push to integrate these changes into the legal framework as the party seeks to redefine the boundaries between police and prosecutorial powers.

“The Democratic Party of Korea has adopted a party policy to fully abolish the prosecution’s supplementary investigation authority.”

This policy reflects an ongoing ideological struggle in South Korea over the 'prosecution reform' movement. By stripping the prosecution of supplementary investigation powers, the Democratic Party aims to end the historical monopoly of prosecutors over both investigation and indictment. While the party frames this as a victory for human rights and institutional checks, the opposition views it as a degradation of investigative efficiency that could leave serious crimes unsolved.