Crime is not randomly distributed. It results from the convergence in time and space of the potential criminal with a suitable target, in a location and situation that favours the offender.
Crime prevention is the anticipation, recognition and appraisal of a crime risk, and the initiation of some action to remove or reduce it.
Crime Prevention Through Environmental Design (CPTED) is a proactive crime prevention strategy predicated on the belief that proper design and management of a built environment, including parking lots, parks, schools and just about anything in a community can lead to a reduction in the incidence and fear of crime and improvement in the quality of life.
Territorial reinforcement creates clear borders of controlled space from public to semi-private so that community members develop a sense of propietorship over them, thereby discouraging potential offenders.
Surveillance is an idea designed to keep potential intruders or attackers under the threat of surveillance, or being watched, so as to deter them from offending.
Access Control increases the perceived risk to potential offenders which denies them access to potential crime targets.
The three types of surveillance/access control are: