The case for the public health sector addressing interpersonal violence rests on four main arguments. First, the significant amount of time health care professionals dedicate to caring for victims and perpetrators of violence has made them familiar with the problem and has led many, particularly in emergency departments, to mobilize to address it. The information, resources, and infrastructures the health care sector has at its disposal are an important asset for research and prevention work. Second, the magnitude of the problem and its potentially severe lifelong consequences and high costs to individuals and wider society call for population-level interventions typical of the public health approach. Third, the criminal justice approach, the other main approach to addressing violence (link to entry above), has traditionally been more geared towards violence that occurs between male youths and adults in the street and other public places – which makes up the bulk of homicides in most countries – than towards violence occurring in private settings such as child maltreatment, intimate partner violence and elder abuse – which makes up the largest share of non-fatal violence. Fourth, evidence is beginning to accumulate that a science-based public health approach is effective at preventing interpersonal violence.