Family and domestic violence (FDV) is a significant social issue that causes major social harm across Australia and in response, Commonwealth, state and territory governments have implemented various policy interventions. However, there is, to date, little evidence about what approach is most effective at reducing this violence, and very little research into how specific agencies, like police, can intervene on specific contributing factors of FDV, especially those that might be preventable. Despite the extensive evidence demonstrating the role that alcohol and, to a lesser extent, illicit and other drug use/abuse plays in FDV, there is a lack of information about how interventions that address this issue might be used by police or other agencies to reduce violence.