A special constable or special police constable (SC or SPC) can refer to an auxiliary or part-time law enforcement officer or a person who is granted certain (special) police powers.
In some jurisdictions, police forces are complemented by a special constabulary, whose volunteer members have full police powers and hold the office of constable. In other jurisdictions, specifically Canada and parts of Australia, special constables are sworn peace officers granted police powers to enforce specific legislation in a distinct context or geographic area (e.g. universities, public transit, parks, etc.).[1] Historically, and in different contexts, special constables have been paid or volunteer members of an ad-hoc reserve force or a permanent auxiliary, and have ranged from unarmed patrols to armed paramilitaries.