수사를

investigation

→ 수사

phrase Rare #17,782

investigation 수사 means “investigation,” often a police or criminal investigation. 를 is the object-marking particle, so 수사를 means “the investigation” as the object of a verb.

KO: 경찰이 사건 수사를 시작했어요.

EN: The police started an investigation into the case.

우리 수사를 방해하지 말아요

Please don't interfere with our investigation.

— 폴링 다운 (1993)

씨발, 과학 수사를 해야지, 과학

Fuck, we need to use forensic science—science!

— 살인의 추억 (2003)