Informant
PERSON WHO PROVIDES PRIVILEGED INFORMATION ABOUT A PERSON OR ORGANIZATION TO AN AGENCY
Narc (narcotics); Informants; Grassing; Informers; Criminal Informant; Stool Pigeon; Police informant; Stool pigeon; Narc (Narcotics); Confidential Informant; Drop a dime; Police informers; Confidential informant; Mob informer; Mob informant; Government informant; Criminal informant; Jailhouse informant; Jailhouse informants; Stoolie; Informer; Police spy; List of informants; Rodentus incarcerarium; Seksot; Osvedomitel; Confidential human source; Intel source; Confidential human resource
An informant (also called an informer) is a person who provides privileged information about a person or organization to an agency. The term is usually used within the law-enforcement world, where informants are officially known as confidential human sources (CHS), or criminal informants (CI).