1 of 2 | Han Byung-do, left, acting leader and floor leader of South Korea’s ruling Democratic Party, attends a party leadership meeting Wednesday at the National Assembly in Seoul with Supreme Council members Hwang Myung-sun, Kang Deuk-gu and Park Jie-won. Photo by Asia Today

July 15 (Asia Today) -- South Korea's main opposition People Power Party launched a campaign Wednesday to preserve prosecutors' supplementary investigative authority, taking advantage of emerging divisions within the ruling Democratic Party over plans to eliminate the power.

The opposition party introduced three bills under the banner of protecting crime victims and highlighted several prominent criminal cases to build public support for its position.

All People Power Party lawmakers jointly sponsored amendments to the Criminal Procedure Act and legislation governing the planned Prosecution Service and Serious Crimes Investigation Agency.

The bills would preserve prosecutors' authority to conduct additional investigations and expand the types of cases police must refer to prosecutors.