The article discusses findings from first study in Europe to track domestic violence cases over six years through the criminal justice system and compare cases involving male and female perpetrators. Ninety-six cases involving men and women recorded by the police in England as intimate domestic violence perpetrators were tracked to provide detailed narratives and progression of cases, establishing samples with a single male or female perpetrator or where both partners were recorded as perpetrators. Domestic violence involves a pattern of abusive behaviour over time and the in-depth longitudinal approach allowed similarities and differences in violent and abusive behaviours used by men and women, as recorded by the police, to be explored. Gender differences were found relating to the nature of cases, forms of violence recorded, frequency of incidents and levels of arrest.