Surveillance
Definition 1 of 4
Pro Tip 1/3
Crime Prevention
Surveillance is used to deter crime by making people feel they're being watched. The presence of surveillance cameras can make thieves think twice.
Pro Tip 2/3
Not Always Visible
Surveillance can be covert, meaning you might not see cameras or guards. Hidden surveillance devices could be listening in.
Pro Tip 3/3
Public Spaces
Surveillance is common in areas with higher security needs like airports. You are under surveillance when you pass through airport security.