Maryland Natural Resources Police

The Maryland Department of Natural Resources Police (NRP or Maryland DNR Police) is the law enforcement arm of the Maryland Department of Natural Resources (DNR). Natural Resources Police Officers patrol state-owned lands and enforce conservation and boating laws as well as Maryland's Criminal Law and Transportation Article. NRP is also the primary law enforcement agency on the waterways of Maryland, and is the primary response agency for all homeland security threats on Maryland waterways.

Natural Resources Police officers are the only police officers to have statewide jurisdiction, including Baltimore City. (The Maryland State Police (MSP), which is the state police and highway patrol, also has statewide jurisdiction, but have limited authority within Baltimore City).

The NRP now has some 262 sworn personnel and 78 civilian employees.

The NRP have statewide authority to enforce all laws, including the Natural Resources Article, the Criminal Law Article, and the Transportation Article.

The Maryland Natural Resources Police Training Academy, the agency police academy, is located in Sykesville, Maryland at Maryland Police and Correctional Training Commission. The Academy officially opened on March 25, 1963 as the Maryland State Marine Police Academy, with a class of eight officers.

The NRP is Maryland's oldest state law enforcement agency.

The NRP traces its lineage to an act of the Maryland General Assembly in 1868 creating the State Oyster Police Force in order to enforce 1830 and 1865 laws regulating oyster-harvesting and conservation. This forces' responsibility was limited to enforcing the oyster laws on the Chesapeake Bay. Hunter Davidson, a former Confederate States Navy officer and U.S. Naval Academy graduate, was unanimously chosen as the first commander of the State Oyster Police Force by the State Board of Commissioners.

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