RT Article T1 Gangs and public policy: constructing and deconstructing gang databases JF Criminology & public policy VO 8 IS 4 SP 711 OP 716 A1 Kennedy, David M. 1958- LA English YR 2009 UL https://krimdok.uni-tuebingen.de/Record/1626311056 K1 Gangs K1 Datenbanken K1 USA