17: Jailhouse Undercover Operations Last updated Save as PDF Page ID 16211 Larry Alvarez College of the Canyons 17.1: United States Supreme Court ILLINOIS v. PERKINS, (1990) No. 88-1972 17.2: A Constitutional Guide to the Use Of Cellmate Informants By Kimberly A. Crawford, J.D. Contributors and Attributions Template:ContribCCAdmJus110