Deviance refers to any act that does not follow the norms and expectations of the social group.
Crime involves acts that break a law set by the government or rulers.
Marxist views place too much emphasis on social class.
Non-capitalist societies also have crimes, while some capitalist societies - such as Switzerland - have low crime rates.
Feminists would say Marxists do not take account of patriarchy.
Deviance is a wider category of behaviour than crime because it includes acts that do not involve breaking a law.
Deviance includes acts that are positive and may be rewarded (positively sanctioned).
An act of heroism may be rewarded with a medal.
Some deviance is not sanctioned; for example, eccentric behaviour may be tolerated.
Most sociologists use the term deviance for behaviour that is negatively sanctioned.
Marshall Clinard said deviance should be used to refer to 'those situations in which behavior is in a disapproved direction and of a sufficient degree to exceed the tolerance of the community'.
The most obvious form of deviance is therefore crime.
Sociologists of deviance have often studied deviance that is not necessarily criminal, such as suicide and mental illness.
Deviance and crime are relative, that is, what is considered to be deviant or criminal varies from time to time and place to place.
Actions can be deviant only in terms of the standards of a particular society or in a particular time in its history.
No acts are deviant by their nature.
Even killing someone is not always considered a crime, for example it is not a crime for soldiers to kill enemy soldiers in wartime.
There have been arguments as to whether incest and cannibalism are always deviant, so that all societies have punished them.
In sociology, most early research and theory was about crime but from the 1960s onwards there was a greater interest in deviance, especially in some deviant sub-cultures.
Functionalism recognises the importance of socialisation and how this can reduce crime and deviance.
Functionalism assumes the existence of a shared set of values across society, which is unlikely to be the case today.
Strain theory assumes that almost everyone in a society shares the same values, which is disputed by other theorists such as Marxists and feminists.
Marxists argue that functionalism ignores the issue of power in society, arguing that the law functions the interests of the powerful groups (the bourgeoisie).
Strain theory cannot explain crimes committed by people who have already achieved their goals, such as white-collar crime.
Durkheim's analysis did not attempt to explain different types of crime, although other views influenced by Durkheim have tried to do this.
Merton was influenced by Durkheim's ideas about values, but adapted them to explain reasons for crime and different types of crime.
Merton claimed that a lot of working-class crime could be explained by strain theory: people struggled to achieve the goal of material success through legitimate means, so they turned to crime instead.
Merton suggested there were five possible responses to the situation where there is a mismatch between goals and means: conformists, innovators, ritualists, retreatists, and rebels.
Subculturalists tend to focus on male criminality and are criticised by feminists for ignoring girls and the possible reasons why they do not become involved in deviant sub-cultures.
Neutralisation techniques include denying responsibility, denying harm, and condemning the condemners.
Strain theory is useful for explaining crimes committed for material gain (such as theft and fraud); it can also explain crimes such as drug-taking that result from giving up on the goals entirely.
Bribery and threats were used to keep quiet people who knew or might suspect what was going on.
Robert K Merton developed the ideas of Durkheim and early functionalists in strain theory.
Marxists point out that some crimes involving property are punished more severely than crimes involving violence or even death; this shows that property is valued more highly than life.
In the USA in the 1930s, there was great emphasis on the 'American Dream', which meant achieving materials success and becoming wealthy through hard work.
Subcultural theories offer insights into offending by young people, particularly the search for status.
Strain theory suggests that the goals of the American Dream cause deviant behaviour.
According to Marxism, crime happens because of capitalism.
The ruling class makes the laws and decides who should be punished for what crimes.
The idea that crime is functional for society is questionable, as it is hard to see how a crime can be good from a victim's point of view.