RT Article T1 Focused deterrence strategies and crime control an updated systematic review and meta‐analysis of the empirical evidence JF Criminology & public policy VO 17 IS 1 SP 205 OP 250 A1 Braga, Anthony Allan 1969- A2 Weisburd, David 1954- A2 Turchan, Brandon S. LA English YR 2018 UL https://krimdok.uni-tuebingen.de/Record/1584531371 AB Focused deterrence strategies are increasingly being applied to prevent and control gang and group‐involved violence, overt drug markets, and individual repeat offenders. Our updated examination of the effects of focused deterrence strategies on crime followed the systematic review protocols and conventions of the Campbell Collaboration. Twenty‐four quasi‐experimental evaluations were identified in this systematic review. The results of our meta‐analysis demonstrate that focused deterrence strategies are associated with an overall statistically significant, moderate crime reduction effect. Nevertheless, program effect sizes varied by program type and were smaller for evaluations with more rigorous research designs. K1 Deterrence K1 Problem-oriented policing K1 Gang violence K1 Repeat offenders K1 Drug markets K1 Abschreckung K1 Drogenmarkt K1 Wiederholungstäter DO 10.1111/1745-9133.12353