The biggest difference between deviant behaviour and a crime is, that a crime is against the law, while deviance is only against social norms.A crime has an added characteristic in that a law has been passed against it, making it a crime or criminal offence.Deviation is what is defined as not normal by norms, values, or laws. This could be something like wearing the wrong kind of clothes to a party or killing someone – deviance is behavior that is not seen as acceptable or normal.
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