The problem of violence, including sexual violence and family violence, is of national and international significance and requires innovative and transformational research and practice to enhance understanding and assessment, intervention, reintegration and prevention efforts. The aim of the Catalyst Consortium is to enhance our understanding of the causal factors of violence, and to intervene effectively with people who engage in violence in a manner that will increase community safety. We shall target people who commit interpersonal violence, including those with mental disorders (including personality disorders), substance misuse disorders, and cognitive impairment.