Outdoor perimeter security is an often-overlooked area of physical security design that can dramatically improve the effectiveness of a facility’s security system. If you are involved in designing or managing physical security the infrastructure located in the buildings likely consumes the majority of your budget. However, small investments in outdoor perimeters can provide significant protection to the building’s assets well before the other, more costly, measures are encountered. These outdoor perimeters can serve as a valuable line of defense for a physical security plan because they add distance, time and scale to a physical security plan that cannot be achieved within the building itself. If designed correctly, outdoor preventative measures can reduce the cost of building security. In all physical security designs outdoor perimeters should be included as a supportive element.