The town of
The system includes three control rooms. The main control room is located at the police station, which is staffed 24 hours a day, 7 days a week by civilian Police Authority employees. This control room has access to all the cameras; employees located there can override the decisions of the auxiliary control rooms and bear the responsibility for crime prevention and detection by the system. Employees in the main control room can communicate easily with operational police units.
The underlying theory for CCTV is deterrence theory, which predicts reductions in crime resulting from potential offenders’ perceptions of increased risk of detection and capture.
Skinns (1998) found that recorded crime was reduced by 16 percent in the town center target area and 6 percent across all the adjacent and potential displacement areas. There was no significant overall crime decrease, however, when a trend analysis was undertaken. In analyses of separate types of crime, controlling for trends, the reduction was significant for some types of crime (theft of and from vehicles), but not from others (other theft, shoplifting).
Surveys of car park users, school pupils, and town center users reflected a significant reduction in witnessing crimes after the cameras were installed (e.g., the number of town center users reporting witnessing a crime dropped from 24 percent to 12 percent). Similarly, victimization data reflected the reductions in crime, so that the number of business providers reporting victimization dropped from 89 percent to 65 percent, and town center users, from 5 percent to 3 percent.