RT Article T1 A national evaluation of the effect of COPS grants on police productivity (arrests) 1995-1999 JF Police quarterly VO 6 IS 4 SP 469 OP 491 A1 Zhao, Jihong 'Solomon' A2 Thurman, Quint A2 Scheider, Matthew C. LA English YR 2003 UL https://krimdok.uni-tuebingen.de/Record/1912630435 DO 10.1177/1098611103251400