Shoplifting is theft

Theft

In common usage, theft is the illegal taking of another person's property without that person's permission or consent. The word is also used as an informal shorthand term for some crimes against property, such as burglary, embezzlement, larceny, looting, robbery, shoplifting and fraud...

 of goods from a retail

Retail

Retail consists of the sale of physical goods or merchandise from a fixed location, such as a department store, boutique or kiosk, or by mail, in small or individual lots for direct consumption by the purchaser. Retailing may include subordinated services, such as delivery. Purchasers may be...

 establishment. It is one of the most common property crime

Property crime

Property crime is a category of crime that includes, among other crimes, burglary, larceny, theft, motor vehicle theft, arson, shoplifting, and vandalism. Property crime only involves the taking of money or property, and does not involve force or threat of force against a victim...

s dealt with by police

Police

The police is a personification of the state designated to put in practice the enforced law, protect property and reduce civil disorder in civilian matters. Their powers include the legitimized use of force...

 and court

Court

A court is a form of tribunal, often a governmental institution, with the authority to adjudicate legal disputes between parties and carry out the administration of justice in civil, criminal, and administrative matters in accordance with the rule of law...

s.

Most shoplifters are amateurs; however, there are people and groups who make their living from shoplifting, and they tend to be more skilled. Generally, criminal theft involves taking possession of property illegally. In the case of shoplifting, though, customers are allowed by the property owner to take physical possession of the property (holding it in their hands or in a shopping cart controlled by them, for instance).