In addition, you should check out the Harvard survey done in the US where they found that in households that saw domestic violence, a slight majority saw reciprocal violence, where both parties were hitting each other, and in those households, women were the initiators of the violence slightly over half the time. In the other half of the houses, where the violence was nonreciprocal and only one family member was doing it, over 70% of the time the woman was the culprit.

Whitaker DJ, et al. "Differences in Frequency of Violence and Reported Injury between Relationships with Reciprocal and Nonreciprocal Intimate Partner Violence," American Journal of Public Health (May 2007): Vol. 97, No. 5, pp. 941–47. 

You cite police stats, but even in Canada, 7 of 8 people affected by DV simply don't go to the cops. Using police stats about a small minority who report to bolster feminist dogma about DV as a whole doesn't do you any justice.