This essay examines the criminological conceptualizations and research on police crime, that is, the criminal behavior of sworn law enforcement officers. It starts with an overview of the conceptualization of police crime as it relates to organizational and scholarly perspectives of social deviance. Police deviance is often conceptualized to include various misconduct, corruption, and/or crime committed by police organizations and police officers. This essay focuses on police crime resulting in the arrest of a sworn law enforcement officer and is organized within a conceptual framework that incorporates five types of police crime: sex-related police crime, alcohol-related police crime, drug-related police crime, violence-related police crime, and profit-motivated police crime.