The Federal Bureau of Investigation (FBI) is the domestic intelligence and security service of the United States and its principal federal law enforcement agency. An agency of the United States Department of Justice, the FBI is a member of the U.S. Intelligence Community and reports to both the Attorney General and the Director of National Intelligence. A leading U.S. counterterrorism, counterintelligence, and criminal investigative organization, the FBI has jurisdiction over violations of more than 200 categories of federal crimes.
The United States Secret Service is a federal law enforcement agency under the Department of Homeland Security charged with conducting criminal investigations and protecting U.S. political leaders, their families, and visiting heads of state or government. Until 2003, the Secret Service was part of the Department of the Treasury, as the agency was founded in 1865 to combat the then-widespread counterfeiting of U.S. currency. President Abraham Lincoln signed the legislation on April 14, 1865, just a few hours before he was assassinated. In 1901, the Secret Service was also assigned to presidential protection duties.
In the United States, a special agent is an official title used to refer to certain investigators or detectives of federal, military, tribal, or state agencies who primarily serve in criminal investigatory positions. Additionally, some special agents operate in criminal intelligence, counterterrorism, or counterintelligence-based roles as well, with one or all of these roles occasionally taking precedence over criminal investigatory tasks.
The United States Customs Service was a federal law enforcement agency of the U.S. federal government. Established on July 31, 1789, it collected import tariffs, performed other selected border security duties, as well as conducted criminal investigations.
The Department of Public Safety of the State of Texas, commonly known as the Texas Department of Public Safety (DPS), is a department of the state government of Texas. The DPS is responsible for statewide law enforcement and driver license administration. The Public Safety Commission oversees the DPS. However, under state law, the Governor of Texas may assume command of the department during a public disaster, riot, insurrection, formation of a dangerous resistance to enforcement of law, or to perform his constitutional duty to enforce law. The commission's five members are appointed by the governor and confirmed by the Texas Senate, to serve without pay for staggered, six-year terms. The commission formulates plans and policies for enforcing criminal, traffic and safety laws, preventing and detecting crime, apprehending law violators, and educating citizens about laws and public safety.
The Diplomatic Security Service (DSS) is the principal security and law enforcement agency of the United States Department of State (DOS). As the operational division of DOS Bureau of Diplomatic Security, its primary mission is to provide security to protect diplomatic assets, personnel, and information, and combat visa and passport fraud. DSS also conducts counterterrorism, counterintelligence, cybersecurity and criminal investigations domestically and abroad.
The Federal Protective Service (FPS) is a federal law enforcement agency of the United States Department of Homeland Security (DHS). It is also "the federal agency charged with protecting and delivering integrated law enforcement and security services to facilities owned or leased by the General Services Administration (GSA)"—over 9,000 buildings—and their occupants.
The United States Capitol Police (USCP) is a federal law enforcement agency in the United States with nationwide jurisdiction charged with protecting the United States Congress within the District of Columbia and throughout the United States and its territories. It answers to the Capitol Police Board and is the only full-service federal law enforcement agency appointed by the legislative branch of the federal government of the United States.
Clarence M. Kelley was an American law enforcement officer. He served as the Chief of the Kansas City Police Department in Kansas City, Missouri, from 1961 to 1973, and as the second director of the Federal Bureau of Investigation from 1973 to 1978.
The Alaska State Troopers, officially the Division of Alaska State Troopers (AST), is the state police agency of the U.S. state of Alaska. It is a division of the Alaska Department of Public Safety (DPS). The AST is a full-service law enforcement agency that handles both traffic and criminal law enforcement. The AST is also involved in apprehending fugitives as part of the Alaska Fugitive Task Force, an inter-agency collaborative of Alaska police departments that cooperates with police agencies throughout the United States and less commonly with Interpol in apprehending wanted men and women. Unlike many lower 48 states, the AST also serves as Alaska’s primary environmental law enforcement agency; troopers assigned to the AST’s Division of Alaska Wildlife Troopers are known as "Alaska Wildlife Troopers" and primarily serve as game wardens, although they retain the same powers as other Alaskan state troopers.
The United States Department of Veterans Affairs Police is the uniformed law enforcement service of the U.S. Department of Veterans Affairs, responsible for the protection of the VA Medical Centers (VAMC) and other facilities such as Outpatient Clinics (OPC) and Community Based Outpatient Clinics (CBOC) operated by United States Department of Veterans Affairs and its subsidiary components of the Veterans Health Administration (VHA), as well as the National Cemetery Administration (NCA) and the Veterans Benefits Administration (VBA) respectively.
The Federal Reserve Police Department (FRPD) is the law enforcement unit of the Federal Reserve System, the central banking system of the United States.
The following outline is provided as an overview of and introduction to law enforcement:
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.
United States Department of Defense Police are the uniformed civilian security police officers of the United States Department of Defense (DoD), various branches of the United States Armed Forces, or DoD agencies.
The FBI National Academy is a program of the FBI Academy for active U.S. law enforcement personnel and also for international law enforcement personnel who seek to enhance their credentials in their field and to raise law enforcement standards, knowledge, and also cooperation worldwide. The FBI National Academy is held four times a year, when up to 250 candidates go through a 10-week course.
In the United States, the state police is a police body unique to each U.S. state, having statewide authority to conduct law enforcement activities and criminal investigations. In general, state police officers or highway patrol officers, known as state troopers, perform functions that do not fall within the jurisdiction of a county’s sheriff, such as enforcing traffic laws on state highways and interstates, overseeing security of state capitol complexes, protecting governors, training new officers for local police forces too small to operate an academy and providing technological and scientific services. They also support local police and help to coordinate multi-jurisdictional task force activity in serious or complicated cases in states that grant full police powers statewide.
The Bureau of Indian Affairs Police, Office of Justice Services, also known as BIA Police, is the law enforcement arm of the United States Bureau of Indian Affairs. The BIA's official mission is to "uphold the constitutional sovereignty of the Federally recognized Tribes and preserve peace within Indian country". It provides police, investigative, corrections, technical assistance, and court services across the over 567 registered Indian tribes and reservations, especially those lacking their own police force; additionally, it oversees tribal police organizations. BIA services are provided through the Office of Justice Services Division of Law Enforcement.
The Department of the Army Civilian Police (DACP), also known as the Department of the Army Police, is the uniformed, civilian-staffed security police program of the United States Army. It provides professional, civilian, federal police officers to serve and protect U.S. Army personnel, properties, and installations. DACP personnel represent the Department of the Army's contribution to the Department of Defense Police program. DACP law enforcement officers primarily work alongside the U.S. Army Military Police Corps, the Army service members who hold law enforcement military occupational specialities. DACP officers are supplemented by Department of the Army Security Guards, who are uniformed and armed federal security officers, primarily responsible for entry control and basic security tasks. Although the Army Criminal Investigation Division employs civilian special agents, it does not fall-under the DACP or DoD Police umbrella.
The United States Department of the Air Force Police is the uniformed security police program of the Department of the Air Force (DAF). It provides professional, civilian, federal police officers to serve and protect U.S. Air Force (USAF) and Space Force (USSF) personnel, properties, and installations. DAF Police personnel represent the DAF's contribution to the Department of Defense Police program. DAF Police officers primarily work alongside USAF Security Forces, the military police of the USAF and USSF. Although a separate branch from the USAF, the USSF still falls-under the DAF, therefore law enforcement services are provided to the USSF by the DAF Police and USAF Security Forces. Although the Air Force Office of Special Investigations employs civilian special agents, it does not fall-under either the DAF Police or DoD Police umbrella.
