The Uniform Crime Reporting (UCR) program compiles official data on crime in the United States, published by the Federal Bureau of Investigation (FBI). UCR is "a nationwide, cooperative statistical effort of nearly 18,000 city, university and college, county, state, tribal, and federal law enforcement agencies voluntarily reporting data on crimes brought to their attention".
The United States Park Police (USPP) is the oldest uniformed federal law enforcement agency in the United States. It functions as a full-service law enforcement agency with responsibilities and jurisdiction in those National Park Service areas primarily located in the Washington, D.C., San Francisco, and New York City areas and certain other government lands. United States Park Police officers have jurisdictional authority in the surrounding metropolitan areas of the three cities it primarily operates in, meaning they possess both state and federal authority. In addition to performing the normal crime prevention, investigation, and apprehension functions of an urban police force, the Park Police are responsible for policing many of the famous monuments in the United States.
Crime in Washington, D.C., is directly related to the city's demographics, geography, and unique criminal justice system. The District's population reached a peak of 802,178 in 1950. Shortly after that, the city began losing residents, and by 1980 Washington had lost one-quarter of its population. The population loss to the suburbs also created a new demographic pattern, which divided affluent neighborhoods west of Rock Creek Park from the less well-off neighborhoods to the east.
The United States Mint Police is a U.S. federal law enforcement agency responsible for the protection of the facilities, assets, and personnel of the U.S. Mint. It was founded in 1792, making it among the oldest federal law enforcement agencies in the United States.
As of 2024, more than 1,280,000 sworn law enforcement officers are serving in the United States. About 137,000 of those officers work for federal law enforcement agencies.
The Smithsonian Institution Office of Protection Services, often referred to as the Smithsonian Police, is the guard and security police force of the Smithsonian Institution.
The District of Columbia Protective Services Division is a division of the Department of General Services of the District of Columbia Government. The organization is responsible for "law enforcement activities and physical security of all properties owned, leased or otherwise under the control of the Government of the District of Columbia."
The federal government of the United States empowers a wide range of federal law enforcement agencies to maintain law and public order related to matters affecting the country as a whole.
Law enforcement in New York City is carried out by numerous federal, state, city and private agencies. New York City has the highest concentration of law enforcement in the United States.
