RT Article T1 Gangs, law enforcement, and the academy JF Criminology & public policy VO 8 IS 4 SP 723 OP 731 A1 Short, James F. 1924-2018 LA English YR 2009 UL https://krimdok.uni-tuebingen.de/Record/1626311102 K1 Gangs K1 Datenbanken K1 Polizeiarbeit