What is the main purpose of surveillance in security?

The primary purpose of surveillance in security is to deter criminal behavior through visibility. When individuals know they are being watched, whether through cameras or security personnel, it significantly reduces the likelihood of criminal activities occurring. This deterrent effect is crucial as it creates an environment where potential offenders are less inclined to commit crimes, knowing there may be immediate consequences or that they could be recorded and later identified.

While collecting data for future crimes is a function that surveillance can assist with, it is not its main purpose. The aim of surveillance is proactive—preventing crime before it happens rather than just documenting it afterward. Monitoring customer satisfaction and providing entertainment for staff are not aligned with the security objectives of surveillance, as they fall outside the scope of crime prevention and safety.