When conducting a security review the first objective is to restrict and prevent unauthorised persons onto the grounds of a property.
Dependent on the type of risk, erecting a new wall, fence or railings may be sufficient, however, for high risk sites dynamic electronic detection system techniques may also be employed i.e. infra red beams, fence detection and underground detection systems. These types of system are regularly used in conjunction with CCTV systems to assist Guards with surveillance of large properties.