Harriet MacMillan is a psychiatrist and pediatrician conducting family violence research. She is a member of the Offord Centre for Child Studies. Beginning in 1993 until 2004, Harriet was the founding Director of the Child Advocacy and Assessment Program (CAAP) at McMaster Children’s Hospital, a multidisciplinary program committed to reducing the burden of suffering associated with family violence. She continues to see patients as an active staff member of CAAP. Her research focuses on the epidemiology of violence against children and women; she has led randomized controlled trials evaluating the effectiveness of approaches to preventing child maltreatment and intimate partner violence. Funding for this work has been provided by organizations such as the WT Grant Foundation, CIHR, the Brain and Behavior Research Foundation and CDC. Harriet is the nominated principal investigator of a CIHR-funded Centre for Research Development in Gender, Mental Health and Violence across the Lifespan (PreVAiL:http://www.prevailresearch.ca/). PreVAiL is an international Network made up of researchers in the areas of mental health, gender and violence, and of partner organizations with service, research and policy mandates in these areas. Through PreVAiL, Harriet works closely with organizations such as the Public Health Agency of Canada and the World Health Organization.