undercover investigator; decoy investigator
A law enforcement officer who poses as a criminal or victim to gather evidence or make arrests. Often used in the context of sting operations.
An undercover investigator infiltrated by posing as an illegal drug dealer.
The police conducted a prostitution sting using a decoy investigator.
潜入捜査官 is a broader term for an undercover agent who infiltrates an organization, while おとり捜査官 specifically acts as a decoy to lure criminals.
囮 (decoy) is the core component; おとり捜査官 is the compound for an investigator acting as a decoy.
Standard spelling using kana for おとり (decoy) and kanji for 捜査官 (investigator).
Uses the kanji 囮 for 'decoy'. Less common but still encountered.
Compound of おとり (decoy) and 捜査官 (investigator). The word おとり originally referred to a decoy bird used in hunting.