A more thorough explanation:

Control theory is a theory that explains why people engage in criminal behavior. It suggests that individuals will commit crimes unless they have certain personal social controls in place to prevent them from doing so. These social controls can include a strong investment in conventional, legitimate activities or a belief that criminal behavior is morally wrong.

For example, a person who has a strong attachment to their family and community may be less likely to engage in criminal behavior because they do not want to disappoint or harm those they care about. Similarly, a person who has a strong moral code may be less likely to commit a crime because they believe it is wrong.

Control theory is different from other criminological theories, such as rational choice theory or strain theory, which focus on external factors that may lead to criminal behavior.