In the research literature on white-collar crime, there seems to be a tendency to claim individual failure rather than systems failure. Occupational crime is often emphasized at the expense of corporate crime. In the research literature on misconduct and crime by police officers, however, there seems to be a tendency to claim systems failure. It is argued that police crime is a result of bad practice, lack of resources or mismanagement, rather than acts of criminals. Based on two empirical studies in Norway of business and police crime, this paper is concerned with the extent to which the rotten apple theory versus the rotten barrel theory can explain crime in business organizations and police organizations.