This document discusses labelling theory and the social construction of deviance. It explains that labelling theorists believe deviance is determined not by inherent acts themselves, but by the reactions of others and how those acts are labelled. Powerful groups in society create rules and laws that define what counts as deviance, and label those who violate these norms as outsiders or criminals. The labels applied to individuals can then lead to secondary deviance as they are stigmatized and excluded from society. The document examines the work of theorists like Howard Becker, Edwin Lemert, and criticisms of labelling theory.