User:Necrothesp/List of uniformed organisations/Maryland
| Title | Alternative Title | From | To |
|---|---|---|---|
| United States: State of Maryland, 1776–present | |||
| Baltimore Harbor Tunnel Special Police | 1957 | 1971 | |
| Baltimore Park Police | ? | 1961 | |
| Baltimore Police Department | 1853 | Present | |
| Cumberland Police Department | ? | ? | |
| Hagerstown Police Department | ? | Present | |
| 2nd Maryland Cavalry Regiment | 1862 | 186? | |
| Maryland Defense Force | ? | Present | |
| Maryland-National Capital Park Police | 1953 | Present | |
| Maryland Port Administration Police | 1976 | 1998 | |
| Maryland Port Authority Special Police | 1960 | 1976 | |
| Maryland State Aviation Administration Police | 1972 | 1977 | |
| Maryland State Police | 1921 | Present | |
| Maryland State Roads Commission Bridge Guards | 1940 | 1971 | |
| Maryland Toll Facilities Police | 1971 | 1994 | |
| Maryland Transportation Authority Police | 1994 | Present | |
| University of Maryland Police Department | ? | Present | |