Rational choice theorists believe that illegal activity occurs when a reasoning individual decides to risk breaking the law after considering personal factors, such as the need for money, and situational factors, such as an available target. Before choosing to commit a crime, the person evaluates:
If economic benefits are lacking or the risk of getting caught is too great, the person may choose not to commit the crime. In this respect, some researchers believe that environmental factors, such as a security system, can help deter crime.