A Court Security Officer (CSO) is a specialized security position providing protective services at or around United State Federal Court Houses or other areas as assigned under a contract to the U.S. Marshals Service (USMS). CSO's in this classification generally provide security services under some limited supervision from a Lead CSO and the District Supervisor who report

The Guard enforces regulations and procedures designed to prevent breaches of security, exercises judgment and uses discretion in responding to incidents and emergencies, determining whether to intervene directly, ask for assistance as time permits, keep situation under control or surveillance, or to report incident or situation to the appropriate authority for handling.