A state bureau of investigation (SBI) is a state-level detective agency in the United States. They are plainclothes agencies which usually investigate criminal cases involving the state and/or multiple jurisdictions. They also typically provide technical support to local agencies in the form of laboratory and/or record services, or to directly assist in the investigation of cases at the local agency's request.
The California State Police (CSP) was a state level security police agency founded on March 15, 1887 which primarily served to protect the State Capitol Building, the Governor and other state officials, and other state agencies that did not have their own police force. The CSP also provided services to many different California state agencies, including performing tax seizures for the California Franchise Tax Board and Board of Equalization, as well as patrolling the California Aqueduct. They provided investigative services to elected officials through their Threat Assessment Detail and criminal investigations of crimes committed against the state through the Bureau of Investigative Services. Detectives and line officers routinely conducted investigations with other state agencies and allied law enforcement departments. The California State Police merged with the California Highway Patrol in 1995.
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 Massachusetts State Police (MSP) is an agency of the Commonwealth of Massachusetts' Executive Office of Public Safety and Security, responsible for law enforcement and vehicle regulation across the state. As of 2024, it has 2,330 sworn troopers and 611 civilian support staff for a total of 2,941 personnel, making it the largest law enforcement agency in New England. The MSP is headed by Interim Colonel Jack Mawn.
The Vermont State Police (VSP) is the state police agency for the U.S. state of Vermont. The force has jurisdiction throughout the entire state. The Vermont Public Safety Commission directs policy and selects the commander. The commander is Colonel Matthew Birmingham. The Commissioner of the Vermont Department of Public Safety is Michael Schirling. There are 332 sworn state troopers.
The Michigan State Police (MSP) is the state police agency for the U.S. state of Michigan. The MSP is a full-service law enforcement agency, with its sworn members having full police powers statewide.
The Delaware State Police (DSP) is a division of the Delaware Department of Public Safety and Homeland Security and is responsible for traffic regulation and law enforcement across the US State of Delaware, especially in areas underserved by local police departments. The DSP is headquartered in the capital Dover, Delaware.
The Maryland State Police (MSP), officially the Maryland Department of State Police (MDSP), is the official state police force of the U.S. state of Maryland. The Maryland State Police is headquartered at 1201 Reisterstown Road in the Pikesville CDP in unincorporated Baltimore County.
The South Carolina Highway Patrol (SCHP) is the highway patrol agency for South Carolina, which has jurisdiction anywhere in the state except for federal or military installations. The Highway Patrol was created in 1930 and is an organization with a rank structure similar to the armed forces. The mission of the South Carolina Highway Patrol includes enforcing the rules and regulations in order to ensure road way safety and reducing crime as outlined by South Carolina law. The Highway Patrol is the largest division of the South Carolina Department of Public Safety and its headquarters is located in Blythewood. This department also includes the South Carolina State Transport Police Division, and the South Carolina Bureau of Protective Services.
The Illinois State Police (ISP) is the state police agency of the U.S. state of Illinois. The Illinois State Police is responsible for traffic safety on more than 300,000 miles of total roadway, including 2,185 miles of interstate highways and 15,969 miles of state highways. Currently, almost 3,000 sworn and civilian personnel make up the Illinois State Police.
The Louisiana State Police is the state police agency of Louisiana, which has jurisdiction anywhere in the state, headquartered in Baton Rouge. It falls under the authority of the Louisiana Department of Public Safety & Corrections. It is officially known in that organization as the Office of State Police.
The Oklahoma Highway Patrol (OHP) is a major state law enforcement agency of the government of Oklahoma. A division of the Oklahoma Department of Public Safety, the OHP has traffic enforcement jurisdiction throughout the state. OHP was legislatively created on July 1, 1937, due to the growing problem of motor vehicle collisions, the expansion of highway systems, and the increase in criminal activities.
The Oregon State Police (OSP) is a law enforcement agency of the U.S. state of Oregon. The OSP enforces all of Oregon's criminal laws and assists local law enforcement agencies. Casey Codding has served as Superintendent since February 2023. The agency differs from other state police highway patrol agencies in that OSP has many other areas of specialization and responsibility. In addition to the Patrol Division, OSP has a Criminal Division, SWAT, DPU, MRT, a Forensic Services Division, a Fish and Wildlife Division, a Medical Examiner's Division, and it is one of the few law enforcement agencies in the United States that monitors the security of the state lottery. Oregon State Police has primary jurisdiction on state highways and all other state owned property. It also frequently responds to incidents in rural areas when local agencies lack capacity or otherwise require assistance.
The Arkansas State Police is a state police division of the Arkansas Department of Public Safety and the "premier" law enforcement agency in the State of Arkansas. The Arkansas State Police is responsible for enforcing motor vehicle laws, traffic laws, and criminal laws. The Arkansas State Police serves as an assisting agency to local law enforcement agencies within the State of Arkansas and has statewide authority to conduct law enforcement activities, criminal investigations, and crimes against children investigations.
The Mississippi Highway Patrol is the highway patrol and acting state police agency for the U.S. state of Mississippi, and has law enforcement jurisdiction over the majority of the state.
The Florida Department of Law Enforcement (FDLE) is a state-wide investigative law enforcement agency within the state of Florida. The department formally coordinates eight boards, councils, and commissions. FDLE's duties, responsibilities, and procedures are mandated through Chapter 943, Florida Statutes, and Chapter 11, Florida Administrative Code. FDLE is headed by a commissioner who reports to the Florida Cabinet, which is composed of the governor, the attorney general, the chief financial officer, and the commissioner of agriculture. The commissioner is appointed to his position by the governor and cabinet and confirmed by the Florida Senate.
The New York City Police Department (NYPD) is structured into numerous bureaus and units. As a whole, the NYPD is headed by the Police Commissioner, a civilian administrator appointed by the Mayor, with the senior sworn uniformed officer of the service titled "Chief of Department". The Police Commissioner appoints the First Deputy Commissioner as the department's second-in-command and the Chief of Department as the department's highest ranking uniformed officer. The commissioner also appoints a number of deputy and assistant commissioners who do not have operational command and are solely for support and administrative function. The department is divided into twenty bureaus, six of which are enforcement bureaus. Each enforcement bureau is further subdivided into sections, divisions, and units, and into patrol boroughs, precincts, and detective squads. Each bureau is commanded by a bureau chief. There are also a number of specialized units that are not part of any of the bureaus and report to the Chief of the Department.
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 New Mexico Department of Public Safety (NMDPS) is department within the New Mexico Governor's Cabinet. NMDPS is responsible for statewide law enforcement services, training, disaster and emergency response. NMDPS also provides technical communications and forensics support to the public and other law enforcement agencies. NMDPS has the duty to provide for the protection and security of the governor and lieutenant governor.
The South Carolina Law Enforcement Division (SLED) is a statewide investigative law enforcement agency in South Carolina. SLED provides manpower and technical assistance to other law enforcement agencies and conducts investigations on behalf of the state as directed by the Governor and Attorney General. SLED Headquarters is located in the state capital, Columbia, with offices in the Midlands, Piedmont, Pee Dee, and Low Country regions.
