All personnel at the assembly area must be accounted for to determine if anyone is still in the building. And a contact point can be determined in case an item cannot be verified as belonging in that area. Depending upon the mission of the facility, it may be necessary to evacuate a building in sections. Special weapons areas. Classified storage areas.
Partial evacuation involves risks.
There are no guarantees as to what damage will occur if a device should detonate. Therefore, total evacuation is desirable when possible. Both types of search move from the outside in, from the lowest level to the highest, and from public access areas to more restricted access areas. Supervisor's Search A supervisor's search can be conducted by a few of the activity's personnel using a quick-paced method to look for suspicious items. It can be useful only if all areas are orderly.