TY - BOOK AU - Madinger, John TI - Confidential informant: : law enforcement's most valuable tool/ SN - 0-8493-0709-0 U1 - DC 363.252 2000 PY - 2000/// CY - Boca Raton: PB - CRC Press, KW - Informers KW - United States KW - Criminal investigation KW - Law enforcement N1 - Includes bibliographical references and index ER -