Public security is the function of governments which ensures the protection of citizens, persons in their territory, organizations, and institutions against threats to their well-being – and to the prosperity of their communities.To meet the increasing challenges in the public security area, responsible public institutions and organisations can tap into their own intelligence to successfully address possible threats in advance. They optimise their internal structures, use synergies, and carefully balance costs and benefits of their measures.
Public safety organizations include law enforcement, fire and emergency medical services. The public safety issues that a municipality, county, state, or federal jurisdiction might grapple with include narcotic use, trespassing, burglary, harassment, juvenile delinquency, unauthorized living, noise, littering, inappropriate social behavior, inebriation, and other quality of life issues. Generally organizations are involved in the prevention of and protection from events that could endanger the safety of the general public from significant danger, injury, or property damage, such as crimes or disasters (natural or human-made).