Title: Prison escape - Wikipedia
Headings: Prison escape
Prison escape
Contents
Methods
Cell escape
Containment penetration
Physical force
Deception
Exploitation of weaknesses
Exploitation of corruption
Failure to return
Escape from outside
Outside help
Escape from island prisons
Prevention
Structural
Guard placement
Technology
Routine
Punishment
Famous historical escapes
Helicopter escapes
Prisoner of war escapes
See also
Footnotes
External links

Content: Some of the preventive measures are: Structural
One or more fences surrounding the facility
Barbed wire or razor wire on topping fences that surround the facility
Razor wire on the ground between fences, thereby making one's presence in this area dangerous and possibly deadly
Multiple locked doors between the "pods" (sections of cells) and the exit
Cell windows made too narrow for a human body to fit through; iron bars are often fitted
Guard placement
Rounds: Guards within the facility make rounds checking inmates at set intervals
Full-time watch: High-risk inmates are watched non-stop around the clock one-on-one
Guard towers: Guards in towers at corners of compound can observe edges of the facility and are often authorized to use deadly force against fleeing escapees
Perimeter patrol: A guard in a vehicle circles the compound from the outside, watching for escaping inmates
Technology
Surveillance cameras allow guards to monitor areas of the compound without being physically present there
Security lighting provides nighttime visibility of exterior areas, including entrances, exercise yards and perimeter fencing
Microwave motion sensors alert security if an inmate nears the fence
Thermal cameras detect heat signatures and can notify guards if an inmate (or other unauthorized person) is present in a restricted area or moving towards the fence
Alarms, buzzers, or sirens make guards aware if any doors or gates are open, signifying a possible breach
Perimeter intrusion detection systems sound an alarm if fences are climbed or cut. Some systems also provide guards with live audio feedback
Routine
Head counts at set times to ensure the number of inmates actually in the facility matches the number on record
Cell searches to make sure inmates do not have contraband that can be used to aid an escape or commit violence against guards or other inmates
Punishment
In some jurisdictions, including the United States, escaping from jail or prison is a criminal offense. In Virginia, for instance, the punishment for escape depends on whether the offen