The Leonardtown Barrack continues to provide extraordinary services to the citizens of St. Mary's County. The Maryland State Police and the St. Mary's County Sheriff's Office share concurrent jurisdiction within St. Mary's County; with the exception of the Patuxent River Naval Air Station which is under the jurisdiction of the Department of Defense Police Department. The Maryland State Police share responsibility for all 911 calls with the St. Mary's County Sheriff's Office which are simulcast as they are received by the Emergency Operations Center.