A systematic review by the Campbell Collaboration identified 44 studies that evaluated the impact of using video camera monitoring systems on crime rates. Video surveillance interventions in streets and other public spaces have had a small and not statistically significant effect on crime reduction. The best result of video surveillance is achieved in parking areas, where it causes an average reduction of 51% in vehicle theft [1].
The Crime Reduction Toolkit platform classifies this type of intervention as promising in terms of reducing crime in general, and in particular for reducing crime in parking lot areas (crime decreased by 37% in treatment areas compared to control areas, according to eight studies) and, to a lesser extent, in residential areas (overall reduction of 12%, according to 16 studies). However, that platform reported no statistically significant effect on violent crime (29 studies) or disorder (six studies) [2] [3] [4].
The Crime Solutions platform presents the results of a meta-analysis that evaluated the impact of 76 video surveillance programs. This practice is classified as promising in terms of reducing overall crime, property crime, and vehicle crime, although with no impact on violent crime [4].