Unattended or Suspicious Vehicles (1 of 2)

Organizations today employ a number of security measures (e.g., concrete barriers, obstructions, and gates) to control vehicle and pedestrian access to their facilities. However, security and access control measures can be compromised. For example, vehicles with employee parking permits or decals may be allowed access to certain areas. Security passes can be removed from these vehicles and used on other vehicles, thereby granting unauthorized access to secure areas.

Therefore, all employees must be alert for:

Unattended or suspicious vehicles. Abandoned vehicles may be used to hide suspicious or stolen items, or worse, they could be a vehicle-borne improvised explosive device (VBIED) containing explosives for use in a terrorist act.
Changes in vehicle patterns. Common vehicles such as mail trucks, delivery trucks, buses, or taxis may be suspicious during certain times of day—for example, a second mail delivery, an idle delivery truck, a bus on a different route, or a taxi circling the building numerous times.