Control who can make duplicate keys. Remember, too, that locks aren't just for doors. There are window locks, desk locks, file cabinet locks, and even computer hard drive locks. Make sure you have keys and key control for all of them. Lighting, both indoor and outdoor, can be of great assistance in burglary prevention.
Darkness hides burglars and makes their work easy.
If you are trying to decide whether to light an area, compare the expense of lighting the area with what you'll lose if you are vandalized. Work Smart Consider timers that turn lights on at certain intervals to keep thieves guessing as to whether or not anyone is in your place of business. You may also want to have motion-sensitive lighting installed near doors and windows. Burglar alarms, either silent or with a siren or bell, should also be used as part of any burglary prevention program. In deciding which type of system is best for your business, decide first whether you want to catch the intruder inside or outside your premises.