Short training sessions from a professional can give management and staff the skills to readily identify shoplifters. The goods may be put back. Only apprehend outside the store. All the above advice is dependent on human factors, therefore prone to weaknesses. Deterrent systems range from ineffective to excellent.
Some systems actually encourage theft.
An excellent security camera system includes a properly positioned self awareness monitor. Security cameras can be the most cost-effective deterrent if professionally installed and located, but there are plenty of backyard operators who can sell you a lemon. Ask to see licences issued by the relevant police authority. Also, ask for a list of similar work. You can generate a healthy income and healthy staff attitudes.