job prospects. Life skills refer to social, emotional, and behavioural competencies which help children and adolescents effectively deal with the challenges of everyday life. Gender equality Evaluation studies are beginning to support community interventions that aim to prevent violence against women by promoting gender equality. For instance, evidence suggests that programmes that combine microfinance with gender equity training can reduce intimate partner violence. School-based programmes such as Safe Dates programme in the United States of America and the Youth Relationship Project in Canada have been found to be effective for reducing dating violence. Cultural norms Rules or expectations of behaviour – norms – within a cultural or social group can encourage violence. Interventions that challenge cultural and social norms supportive of violence can prevent acts of violence and have been widely used, but the evidence base for their effectiveness is currently weak. The effectiveness of interventions addressing dating violence and sexual abuse among teenagers and young adults by challenging social and cultural norms related to gender is supported by some evidence. Support programmes Interventions to identify victims of interpersonal violence and provide effective care and support are critical for protecting health and breaking cycles of violence from one generation to the next. Examples for which evidence of effectiveness is emerging includes: screening tools to identify victims of intimate partner violence and refer them to appropriate services; psychosocial interventions—such as trauma-focused cognitive behavioural therapy—to reduce mental health problems associated with violence, including post-traumatic stress disorder; and protection orders, which prohibit a perpetrator from contacting the victim, to reduce repeat victimization among victims of intimate partner violence. Collective violence Not surprisingly, scientific evidence about the effectiveness of interventions to prevent collective violence is lacking. However, policies that facilitate reductions in poverty, that make decision-making more accountable, that reduce inequalities between groups, as well as policies that reduce access to biological, chemical, nuclear and other weapons have been recommended. When planning responses to violent conflicts, recommended approaches include assessing at an early stage who is most vulnerable and what their needs are, co-ordination of activities between various players and working towards global, national and local capabilities so as to deliver effective health services during the various stages of an emergency. Criminal justice One of the main functions of law is to regulate violence. Sociologist Max Weber stated that the state claims the monopoly of the legitimate use of force practised within the confines