10/29/2013· Police Practices & Procedures
By: Michael Levine
Law enforcement agencies call them CIs (Cooperating Individuals, Confidential Informants, and/or Criminal Informants). Cops who use them call them stoolpigeons, stools, rats, chotas, etc. Intelligence agencies (Central Intelligence Agency [CIA], Defense Intelligence Agency [DIA], etc.) call them "assets" or the more confusing "agents."