What elements exist in the building which could delay the progress of an attacker? Any amount of delay provides more time for law enforcement to respond. Law enforcement will most likely arrive after the incident is over. If that is the case, any delay we can put on an attacker provides more response time for police and may even cause the attacker to leave the area. Although every building is different, there are key features that may allow for this kind of delay. Some examples include locking the building down, using fire gates, curtain, and doors, and control of the elevator. Resources and capabilities vary from building to building, so it is essential to conduct physical tests and walk through various scenarios in order to refine procedures.
During any training, the building engineer is interviewed to gain a better understanding of the control mechanisms available in a facility. Additionally, during an event, an engineer typically has a radio and potentially an all call capability to keep building occupants informed of the threat.