South Korea's National Assembly Law and Judiciary Committee began reviewing a bill to abolish the prosecution’s supplementary investigation authority on July 10 [1].
The move represents a significant shift in the balance of legal power within the country's justice system. By removing these specific authorities, the legislation seeks to redefine the boundaries between investigative agencies and the prosecution office.
The committee is led by the Democratic Party. Law Committee Chair Seo Young-gyo said the goal is to handle the bill with a sense of speed to achieve a "great reform of the prosecution" [1].
While Democratic Party lawmakers argue the amendment will increase the effectiveness of investigative powers, the government has maintained a firmer position. Prime Minister Kim Min-seok said on July 25 that the abolition of supplementary investigation authority is the government's basic position [3].
This legislative push has sparked friction between political factions. A spokesperson for the People Power Party said that both ruling and opposition parties are fueling conflict by using the issue to aid in intra-party power competitions [2].
The debate centers on whether the prosecution should retain the ability to conduct follow-up investigations, or if such powers should be entirely stripped to prevent the concentration of authority in a single agency [1].
“"Great reform of the prosecution... handle the bill with a sense of speed"”
The effort to strip the prosecution of supplementary investigation authority is part of a broader, long-standing struggle in South Korea to decentralize legal power. By shifting these capabilities, the government aims to reduce the potential for political influence over criminal probes, though the current timing suggests the issue is being leveraged as a tool for political positioning within the parties.



