Public service
Public service is a service which is provided by government to people living within its jurisdiction, either directly (through the public sector) or by financing provision of services. The term is associated with a social consensus (usually expressed through democratic elections) that certain services should be available to all, regardless of income. Even where public services are neither publicly provided nor publicly financed, for social and political reasons they are usually subject to regulation going beyond that applying to most economic sectors. Public policy when made in the public's interest and motivations can provide Public services. Public service is also a course that can be studied at a college and/or university. Examples of public services are the fire brigade, police, army, and paramedics.
Sectors
Public services are seen as so important that for moral reasons their universal provision should be guaranteed. They may be associated with fundamental human rights (such as the right to water). The Volunteer Fire Dept. and Ambulance Corps. are institutions with the mission of servicing the community. A service is helping others with a specific need or want. Here, service ranges from a doctor curing an illness, to a repair person, to a food pantry.