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 Thomas, Amanda L. A2 Piza, Eric L. A2 Farrington, David 1944- LA English YR 2020 UL https://krimdok.uni-tuebingen.de/Record/1794067922 AB Private security personnel play an important but largely overlooked role in the operation of closed-circuit television (CCTV) surveillance to prevent crime in public and private areas. This role can take a number of forms, including active monitoring of cameras. Drawing upon a global database of CCTV evaluations (N = 165), this article examines the function and performance of private security personnel as related to the effectiveness of CCTV. Findings indicate that CCTV schemes operated by private security personnel generated larger crime prevention effects than those operated by police or those using a mix of police and security personnel. Policy and research implications are discussed. K1 CCTV K1 Crime Prevention K1 Private Security K1 Surveillance K1 systematic review DO 10.1177/1043986219890192