Surveillance - Wikipedia
Surveillance (/ s ər ˈ v eɪ. ə n s / or / s ər ˈ v eɪ l ə n s /) is the monitoring of behavior, activities, or other changing information for the purpose of influencing, managing, directing, or protecting people. This can include observation from a distance by means of electronic equipment (such as closed-circuit television (CCTV) cameras) or interception of …