Closed Circuit Television
Closed circuit television (CCTV) is one of the most important physical security controls to address terrorism and other security threats. CCTV has incomparable value as a forensic tool as well as in deterring all types of physical and electronic threats. It has been used to great effect ex post facto in counterterrorism investigations. For example, in the 2005 London Tube and bus bombings, CCTV was instrumental in identifying the bombers soon after the incidents occurred. CCTV would not likely deter most suicide bombers, but that does not detract from its general value as a security countermeasure.
Although CCTV is used to monitor specific situations in real time, especially during crises or ...