0 abbreviation for confidential informant: a person who secretly gives information to the police about criminal activity:
1 abbreviation for customer intelligence
The agent tried for three years to get into one gangster's dope house but never found a CI who could buy from the target.
Carter's daughter believes there may be a connection between her mother's career as a CI and the murder case.
Gomez sold 6 Ecstasy tablets to a CI who was wearing a wire.
"Most times a CI is a person that has been caught doing something illegal and law enforcement has struck a deal with them", he says.
