ProtectUK publication date
Locks, technology and control rooms can help restrict who can go where and when. These systems integrate with physical barriers to provide delay and detection against a many different types of attackers.

For more information, please visit the NPSA website formerly known as CPNI: 

https://www.npsa.gov.uk/video-surveillance-access-control-detection-control-rooms 

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Keywords
CPNI
Physical Security
Risk Management
Access control
Security
NPSA