Shore patrol are service members that are provided to aid in security for the U.S. Navy, United States Coast Guard, United States Marine Corps, and the BritishRoyal Navy while on shore. They are often temporarily assigned personnel who are untrained in law enforcement and may be armed only with a baton, if at all, and whose primary function is to make certain that sailors on liberty do not become too rowdy. They will also provide assistance for sailors in relations with civil courts and police. Shore Patrol members are usually naval ratings temporarily posted to SP duties.