Throughout the world, violence, delinquency and fear undermine the basic right of individuals to live in peace and fully benefit from a healthy and sustainable community. These elements make no real distinction between prosperous and poor cities, and impose aconsiderable cost on the population, particularly through the decline of communities, the increase in health and security expenditures and the deterioration of investments. Violence and fear directly threaten life in society, good governance and the sustainable development of the world’s communities and neighbourhoods.