I have been involved in the CCTV business since the mid 1970's Most systems installed have been more aimed (Pun intended) at employee theft than the shoplifter. Shoplifters are hard to catch unless you have on-site security or law enforcement. Employee theft can rob a business blind. They have the time, know when someone is watching, and many times the ability to cover up there tracks. Many camera systems just keep them honest, but many just ignore the cameras and take what they want. I have several videos of employees climbing a ladder to cut the wires to a camera, so they will not be caught, as if cutting the wire will erase the video of them doing it. Darwin.