Perimeter security

Perimeter security describes the security measures at transition points. These may be of a physical nature, such as a fence. But such transition points also exist in the digital world. In both cases, the perimeter is the first line of defence against external attacks. Here, we are examining the physical security of the perimeter. The digital perimeter can be found elsewhere in our services.

From the perspective of physical security, one speaks of “perimeter security” when a structural fortification or natural barrier is used to keep unauthorised persons or objects out of, or inside, a perimeter or enclosure – for example, a penal institution. The aim is to select perimeter protection measures that protect against external threats such as theft, vandalism, sabotage, burglary or arson. Precisely which structural measures (walls, fences, etc.) or technical systems (video surveillance systems, laser detection, infrared light barriers, protection against drones, etc.) would be most meaningful depends on the protection needs of the respective company. It is crucial that the individual measures should fit the requirement profile and the overall security concept of the company. In addition, there are security standards for certain sectors or fields that also affect the choice of physical security measures.

What is perimeter security about in detail?
In the environment of classical (physical) security, perimeter security refers to the areas located between a building and its outer perimeter on a horizontal and vertical level. The aim is to select perimeter protection measures that protect against external threats such as theft, vandalism, sabotage, burglary or arson. In this context, it depends on the protection needs of the respective company which structural measures or which technical systems are to be used. Structural measures include, for example, fencing and walls of various heights and designs, reinforced by climbing-over and undermining protection.

In addition, there are technical systems such as video surveillance for day and night as well as video image analysis, thermal camera systems, laser detection, infrared light barriers or other types of sensors. Depending on the threat scenario, the outer vertical level is taken into account in addition to the horizontal level, for example to detect a potential threat from drones.

It is crucial that the individual measures fit the requirement profile and the overall security concept of the company. In addition, there are security standards for specific industries or areas that affect the choice of physical security measures.

Detect and alert at an early stage
Protective measures should not only ward off. Ideally, they detect and classify a threat as early as possible. This is the prerequisite so that the time span between detection and reaction is as short as possible in order to intervene effectively. To achieve this, security technology and electronic detection technology must be optimally coordinated. For example, so that they trigger an alarm even before a structural barrier, such as a fence, has been completely overcome. In order for sensors and systems to interact efficiently, the existing hazard management system (HMS) must be integrally connected to the individual components.

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Peter Dupach
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