Law Enforcement Agencies in Bel Air, MD MD › Harford County Agencies serving the city of Bel Air in MD. Agency Types in Bel Air Campus Police 1 agencies County Jails 1 agencies Municipal Police 1 agencies Sheriff 1 agencies State Police 3 agencies All Agencies in Bel Air, MD Bel Air Police Department Harford County Harford Community College Harford County Harford County Detention Center Harford County Harford County Sheriffs Office Harford County Maryland State Police Harford County Maryland State Police Harford County Maryland State Police Harford County
