Measure type: Screening

Screening is the measure of reducing risk by testing all traffic entering and/or exiting a certain area or object on criteria to determine their right to do so.

Description

Instead of seeking to exclude potential perpetrators (as in access control), this set of tactics seeks to increase the likelihood of detecting persons who are not in conformity with entry requirements (entry screening) or detecting the attempted removal of objects that should not be removed from protected areas (exit screening):

1. Closed-circuit TV
2. Metal detectors
3. Vibration detectors
4. Motion detectors
5. Perimeter alarm system
6. Library book tags

Examples

• Vignette on the car window [1]