Critical criminology is an approach to the sociology of crime and deviance which is closely related to radical criminology and approaches the subject from a conflict perspective. This approach is influenced by Marxism and feminism, as well as incorporating some post-modernist and post-structuralist ideas. Its starting point is not to accept an establishment view of what constitutes crime; and it is interested in the social and economic context of criminality as well as in society's response to criminality. Critical criminologists are often critical of the role of the police.