confidential informant
noun [ C ] mainly US uk/kɒn.fɪˌden.ʃəl ɪnˈfɔː.mənt/ us/kɑːn.fəˌden.ʃəl ɪnˈfɔːr.mənt/ (abbreviation CI)
秘密线人
a person who secretly gives information to the police about criminal activity
FBI agents had been monitoring phone conversations and receiving inside information from confidential informants. 联邦调查局特工一直在监视电话交谈，并从秘密线人那里获得内部信息。
Prosecutors alleged he sold crack cocaine and marijuana to confidential informants working for police. 检察官指控他向为警方工作的秘密线人出售可卡因和大麻。
- More examples
- As confidential informants supplied information to agents, the same names kept coming up.
- The Committee examined the FBI's use of confidential informants while the bureau was investigating organized crime activities.
- Confidential informants warned the FBI that some Police Department officers would aid criminals for money.
- The arrest reports stated that information from a confidential informant established the probable cause for making an arrest, not a wire tap.
- Agents used confidential informants to connect an Alabama man and a New York man to the illegal sale of 33 guns.