High security fence
High-security fence is a type of fence that is intended to serve as a deterrent and a barrier.
The higher the security fence is, the more it will slow down anyone trying to get over, under or through the fence, which is one of the goals of this type of fencing. The other thing high-security fences do is deter casual passersby. The only people who will try to tackle a really high-security fence system are people with a strong interest in whatever they are protecting (or preventing.)
High-security fencing is usually found around sites like prisons, military facilities and airports, where there are very high stakes for unauthorized ingress or egress.
Many high security fence systems also incorporate other types of security, like electric fencing, access control. CCTV cameras and security lighting.