MADERA - Last week the Madera Narcotic Enforcement Team, with the assistance of the Madera Sheriff’s Special Enforcement Team, Fresno High Impact Investigations Team, Madera Police Special Investigations Unit, California Department of Corrections & Rehabilitation CRT Team #11, Visalia Police Department, and the Delano Police Department, executed a total of four search warrants relating to a lengthy, multi-agency, collaborative investigation into the illegal sales of narcotics and firearms, and the illegal possession of firearms.