A native of the Washington DC area, Chief Monroe served in the Washington DC Police Department for twenty-one years in a variety of assignments. He became a police officer in March 1979, and was promoted through the ranks, eventually serving as Assistant Chief of Police where he managed the department's 2600 member Patrol Services Bureau. He also led the Department's Criminal Investigations Bureau and the Office of Youth Violence Reduction.
Chief Monroe was awarded a bachelor's degree in Interdisciplinary Studies from Virginia Commonwealth University. He is a graduate of the FBI National Academy and the National Executive Institute. He serves as a member of the International Association of Chiefs of Police, Major Cities Chiefs and the National Organization of Black Law Enforcement Executives.