Supermarket - offsite monitoring on 24 cameras

What international research shows

Published findings on this kind of intervention elsewhere, not results measured on this site.

• Actively monitored systems, where operators alert security or police while an incident is unfolding, were associated with significant crime reductions. Passive systems that only record showed no significant effect.

  Source: Piza, Welsh, Farrington & Thomas (2019), CCTV surveillance for crime prevention: a 40-year systematic review with meta-analysis, Criminology & Public Policy, as summarised by the US National Institute of Justice's CrimeSolutions

• A randomised controlled trial across 47 retail stores tested in-aisle CCTV domes and public-view monitors and found positive evidence that visible cameras reduce opportunities for theft in real store conditions.

  Source: Hayes & Downs (2011), Controlling retail theft with CCTV domes, CCTV public view monitors, and protective containers: a randomized controlled trial, Security Journal 24(3)