i>I think you'll find (though this is just a hunch) that
domestic violence is much less dependent on class than any other kind of crime. (Forum Lurker)

Than any other kind of crime? Of course, the incidence of violence is related to the educational level as has been found in more than one study. However, educational level (class) of the offender is not a very good predictor of violence Neither is nationality as the theme of this thread seems to indicate.

I'll tell you the two best statistical predictors of violence, by far:
(1) Sex of the offender
(2) Age of the offender

Wolfgang