RT Article T1 Estimating intervention effects in varying risk settings: do police raids reduce illegal drug dealing at nuisance bars? JF Criminology VO 41 IS 2 SP 257 OP 292 A1 Cohen, Jacqueline A2 Gorr, Wilpen A2 Singh, Piyusha LA English YR 2003 UL https://krimdok.uni-tuebingen.de/Record/1639291474 K1 Polizeiintervention K1 Drogenbekämpfung K1 Evaluation K1 Drogenhandel K1 Ökologie K1 Risikofaktoren