ProtectUK publication date
It is important to keep the doors in your building in good order.

Whether they are entrances and exits, or fire doors through the building, doors are important to:

  • control access for authorised personnel

  • permit an appropriate flow of people/materials etc.

  • work in conjunction with intruder detection systems (IDS), to detect unauthorised access

  • provide a barrier to delay the progress of an adversary

  • provide protection from specific types of threat, such as blast or ballistic

  • provide protection from fire and/or smoke ingress

  • provide a means of escape in an emergency


For more information, please visit the NPSA (formerly CPNI) website:

National Security
Physical Security
Attack Methodology