Kang Baek-sin (Judicial Research and Training Institute class 34), a prosecutor at the Daegu High Prosecutors' Office, submitted a resignation letter on the 10th.
Kang is regarded inside the prosecution as a representative "special investigations" prosecutor. Kang joined the Park Geun-hye special counsel team that investigated alleged state capture under that administration, and later handled the investigation into alleged corruption involving the family of former Ministry of Justice Minister Cho Kuk and the maintenance of the indictment.
After taking office in 2022 as head of the third anti-corruption investigation division at the Seoul Central District Prosecutors' Office, Kang, together with then–first anti-corruption division chief Um Hee-jun, also led the "Daejang-dong second-phase investigation team."
At the time, the team investigated alleged corruption in the Daejang-dong and Wirye New Town development projects and successively indicted figures including Kim Yong, former deputy head of the Institute for Democracy, and Jeong Jin-sang, former head of political affairs coordination in the Democratic Party leader's office.
The team later also summoned then–Democratic Party leader Lee Jae-myung for questioning and indicted Lee on charges including breach of trust in connection with the Daejang-dong development project.
Kang has also opposed prosecutorial reform that would abolish prosecutorial investigative powers. When a government organization act revision bill including the abolition of the Prosecution Service passed the National Assembly in Sep. last year, Kang wrote on the internal prosecution network "Epros" that "Sep. 26, 2025, is not the day the Prosecution Service is abolished but the day the Constitution is abolished."
When prosecutors gave up appealing the first-instance ruling in the Daejang-dong development scandal in Nov. last year, Kang posted a message arguing that "the circumstances behind the decision to forgo an appeal must be disclosed."