Nope, because many 'CHAVS' are only labelled as being so by members of society, maybe only due to one particular aspect, i.e clothing, which is not violent.
So-called 'CHAVS' are not the only form of criminal, for example, 'average' blokes on a night out can get drunk and carried away, leading to violence.
Violence is carried out by different members of society, different age-groups and people of different ethnic and religious backgrounds. To generalise and slander one group is wrong.