Key Responsibilities Conduct antiterrorism and force protection patrols on installations and piers; stand sentry and access control posts and control entry to secure areas; perform vehicle, personnel, and baggage inspections to detect weapons, contraband, or unauthorized items; enforce traffic and parking regulations, respond to calls for service, and investigate incidents and traffic accidents; collect and preserve evidence and prepare reports and case files; provide law enforcement presence and crowd control during special events and emergencies; operate and maintain small arms, crew-served weapons, non-lethal weapons, and security vehicles or boats; support harbor and waterside security, high-value unit escorts, and expeditionary security missions; supervise and train junior security force personnel in watchstanding, weapons, and security procedures. Work Environment Assignments at Navy installations in the U.S. and overseas, aboard aircraft carriers and other ships, and with expeditionary security units and strategic weapons facilities; work primarily on bases, piers, flight lines, harbor security boats, and in patrol vehicles, kennels, armories, and security operations centers; opportunities for overseas, forward-deployed, and dependent-restricted tours that count as sea duty for rotation; close integration with other security forces, Marine units, NCIS, and joint or host-nation partners depending on billet.