CCTV stands for Closed Circuit Television. The circuit in this surveillance system is completely closed and all the elements are connected. A CCTV System is mainly used for security and surveillance purposes. These cameras are usually installed in parks, government offices, shopping malls, and other places where the threat of illegal activities and theft is imminent. However, many companies and institutions also use these cameras to monitor their employees so that complacency at the workplace can be avoided.

There are many types of surveillance cameras and most of them can be classified according to their functions. Some companies and institutions opt for covert or hidden cameras that are installed inside a smoke detector. Dome cameras have a dome installed directly on the ceiling so that it can keep a close watch all around the room.

Shopping malls and other big supermarkets use these cameras to stop burglaries and thefts. Kleptomaniacs and shoplifters are instantly discouraged if they find surveillance cameras in a supermarket. The images captured on these cameras are admissible in court as evidence and many murders and crimes have been solved because of such cameras.

Although it is not against the law to install cameras in public places, the debate over electronic privacy continues. In light of the recent terrorist attacks, the government and people are teetering on the fringes of paranoia when it comes to airline and airport security. These types of cameras go a long way in identifying any anti social activities or elements that may pose a threat to life and limb.

CCTV cameras are also used in places where precious metals and stones such as diamonds are sold and bought. Antwerps diamond district is such a place. Recent terrorist attacks have forced the authorities to install CCTV surveillance cameras at each corner of the district. CCTV cameras are used for myriad purposes and come in many types and makes. These cameras have become an important tool for many as far as security and safety is concerned.