1. Leaving showcases open during a sales presentation or leaving keys in the showcase lock. This can allow a sneak theft or a distraction to occur.

2. Showing more than one item at a time, which can lead to a large grab and run loss.

3. Shipping merchandise to unknown customers in credit card transactions without careful scrutiny of the circumstances, and without taking steps to confirm the identity of the buyer.

4. Leaving out merchandise in showcases overnight or covering display cases with cloth.

5. Not having line security for an alarm system.

6. Not having full alarm protection covering the roof, sidewalls, restrooms and all areas of the premises.

7. Having a TL-15 or TL-30 safe, which can be easily entered by burglars with commonly available tools.

8. Keeping high-end watch or diamond merchandise in showcases made of ordinary glass, rather than made of a high security glass product.

9. Failing to properly maintain cameras, or to have the cameras positioned so high that they record the tops of suspects’ heads. Cameras need to be at eye level on entrance or exit. Good video evidence not only greatly improves police investigations and the possibility of recovery, but also provides solid evidence for insurance purposes.

10.  Leaving merchandise in an unattended vehicle.