CCTV is good at stopping and catching shoplifters, although it is better at catching than stopping. Be alert at all times, and make sure that employees are alert as well. It is also useful if there is an employee standing at the entrance/exit of the store greeting customers as they enter and exit the store. Personal contact with customers may prevent someone from stealing. The employee make also have a better view of the customers as they leave, and if they spot something suspicious, they will be in the perfect position to address the concern. Many stores use uniformed security guards in this position.