This document summarizes key aspects of functionalist explanations of deviance. It discusses two important functionalist theorists - Emile Durkheim and Robert Merton. It outlines Durkheim's view that crime is a normal and inevitable part of society that can serve functions like strengthening social solidarity. It also discusses Merton's strain theory, which argues that a mismatch between cultural goals and legitimate means to achieve them can result in deviant behavior. The document also notes criticisms of functionalism and outlines alternative approaches like interactionism.