RT Article T1 Effectiveness of gang officers in reducing gang violence and membership: A comparison of officer perceptions with outcomes A1 Killam, Gary A2 Bourke, Michael L. A2 Blalock, Jessica R. A2 Van Hasselt, Vincent B. 1953- LA English YR 2023 UL https://krimdok.uni-tuebingen.de/Record/1912527650 NO 1079-3062