Electrified Concertina wire constitutes a physical barrier and includes a detection and deterrence system. Electrified Concertina wire is composed of a roll of Concertina wire , with a smooth inner electrified coil insulated from the outer roll. It is compact, easy to transport, and can be readily installed on walls and fences or used in pyramid barriers. A DP23 control unit connected to the inner coil triggers an alarm and/or electric shocks as soon as there is an attempt to breach the fence.