Closed Circuit Television (CCTV) systems are an important weapon in the modern fight against crime. There are, however, some common problems that users need to be aware of.
The picture below is an example of what can happen when things go wrong. If the CCTV system that recorded this image had been correctly adjusted and properly maintained then it could have provided vital information that would have helped to catch a terrorist.

Ensuring this sort of problem does not occur is equally important whether it is a matter of stopping terrorists or a question of protecting your business or your home against robbery and theft. If you use CCTV to protect your premises you should check your system.
There are a few simple rules to ensure that CCTV is not rendered useless:
Your CCTV provider, security officer or local police crime prevention officer can help you improve your system.