Not a great deal is known about the professional thief, except that three types of offenders can be identified. The main goal of the burglar is to acquire cash. Some commercial thieves burglarize establishments that favor cash rather than credit card businesses. Examples include supermarkets, bars, and restaurants. They frequently work in teams and spend a great deal of time and effort planning their heists.
Hijackers specialize in stealing goods in transit from trucks, trains and other commercial carriers.
Their targets are selected because they contain large quantities of goods, that are usually less secure than merchandise in warehouses. In general, commercial thieves do not specialize in one kind of merchandise but rather pick the best opportunity. There are several theories on the causes of commercial thievery. Organized crime has economic gain as its primary goal, though achievement of power and status also might be a motivating factor. Organized crime is not limited to providing illicit services.