Analysis of information sources in references of the Wikipedia article "Informant" in Simple English language version.
According to the Confidential Informant Guidelines, a confidential informant or "CI" is "any individual who provides useful and credible information to a Justice Law Enforcement Agency (JLEA) regarding felonious criminal activities and from whom the JLEA expects or intends to obtain additional useful and credible information regarding such activities in the future."
2: one that informs against another; specifically : one who makes a practice especially for a financial reward of informing against others for violations of penal laws
