Most stores use video surveillance.
Most private investigators and now even retail stores use video surveillance. This gets video evidence of what exactly happens. It does not depend on a witness, their memory, conflicting statements, etc. Video from surveillance prevents shoplifters from taking merchandise. In turn, this keeps costs down. When numerous items are taken from stores, and their inventory is depleted by those who do not pay for it, they have to recoup the costs. This usually means that they raise prices. The people who pay for their items are the ones who suffer. Stores that do not have video surveillance are just asking for trouble. When thieves see a sign that states that cameras are in use in a store, they tend to stay away from that store. If you own a retail store you can contact a private investigator or a security company and inquire about video surveillance systems.