RT Article T1 Undercover Deception Clues: A Case of Restrictive Deterrence JF Criminology VO 31 IS 2 SP 281 OP 281 A1 Jacobs, Bruce A. LA English YR 1993 UL https://krimdok.uni-tuebingen.de/Record/1640203206 K1 Drogenbekämpfung K1 USA K1 V-Person