RT Article T1 Private security and closed-circuit television (CCTV) surveillance: A systematic review of function and performance JF Journal of contemporary criminal justice VO 36 IS 1 SP 56 OP 69 A1 Welsh, Brandon 1969- A2 Farrington, David 1944- A2 Thomas, Amanda L. A2 Piza, Eric L. LA English YR 2020 UL https://krimdok.uni-tuebingen.de/Record/1912664593 DO 10.1177/1043986219890192