Service Tree

The Service Tree lists all services in "branched" groups, starting with the very general and moving to the very specific. Click on the name of any group name to see the sub-groups available within it. Click on a service code to see its details and the providers who offer that service.

Border Patrol/Inspections

The federal agency that is responsible for enforcing and administering immigration and nationality laws by inspecting all persons seeking admission to or transiting through international borders at air, land and sea ports-of-entry; and by patrolling the borders to prevent smuggling and illegal entry of undocumented persons into the country. Border management is the responsibility of the Bureau of Customs and Border Protection (BCBP) which is part of the Department of Homeland Security (DHS). In most areas across the Canada-US border, Integrated Border Enforcement Teams have been established in order to share information and conduct joint operations.

Bureau of Alcohol, Tobacco and Firearms

The federal agency that administers and enforces firearms and explosives laws as well as those covering the production, use and distribution of alcohol and tobacco products. Enforcement activities include investigation of tax evasion, trafficking in illegal distilled spirits, and illegal use of firearms, ammunition and explosives including homemade bombs and explosives. The ATF also inspects tobacco manufacturing plants, wineries and breweries and the premises of federal firearm and explosive licensees; monitors the packaging and labeling of alcoholic beverages to ensure that products are safe and accurately labeled; is responsible for tax enforcement in both industries; and operates a national firearms tracing center which serves all local, state and federal agencies, upon request.

College/University Campus Police

Programs operated by colleges, universities or other institutions of higher education that are responsible for general law enforcement on campus and in the college or university community. Services may include bicycle licensing; escort services for students, faculty and staff; parking regulation; lost and found offices; and sexual assault/crime prevention seminars.

Federal Bureau of Investigation

The law enforcement arm of the U.S. government that has responsibility for investigating violations of federal laws with the exception of those assigned to another federal agency. The FBI's jurisdiction includes a wide range of responsibilities among which are espionage, sabotage and other subversive activities, kidnapping, extortion, bank robbery, interstate transportation of stolen property, civil rights matters, interstate gambling violations, fraud against the government, and assault on or killing of the President or a federal officer.

Marshals Offices

County ministerial and enforcement officers for state trial courts who handle the execution, service and return of all writs, processes and criminal warrants directed by the courts or other competent authorities; operate courthouse lock-ups; guard defendants who are in custody; facilitate inmate transportation; maintain order in the courtroom; assume custody of deliberating juries, and perform other tasks, as needed, to ensure that the courts operate effectively. In some jurisdictions, this function is handled by an office within the Sheriff's Department.

Municipal Police

The local agency that is responsible for enforcing all laws and ordinances; preventing crime; investigating criminal activity; apprehending, arresting and detaining suspects; presenting evidence; regulating traffic; investigating traffic accidents and engaging in other activities that protect lives and property and preserve peace in the community.

Secret Service

The federal law enforcement agency that is responsible for detecting and arresting people who have committed offenses against the United States relating to coins, currency and other obligations or securities of the U.S. or foreign governments; or who have violated laws relating to the FDIC, federal land banks, joint-stock land banks or federal land bank associations. The Secret Service is also responsible for the personal security of the President and Vice-President and their families, and for candidates for or past holders of these offices.


The county agency that is responsible for enforcing all laws and regulations, preventing crime, investigating criminal activity, apprehending, arresting and detaining suspects, preventing and suppressing delinquency and engaging in other activities that protect lives and property and preserve peace in the community.

State Police

The state agency that has responsibility for enforcing state laws, investigating crimes, providing laboratory analysis of criminal evidence, gathering and sharing criminal intelligence and providing expertise and resources to other law enforcement agencies throughout the state.

Tribal Police

Tribal agencies that are responsible for enforcing the laws established by the tribe's constitution, protecting persons and property within the tribal jurisdiction, ensuring that orders of the tribal court, where one exists, are properly carried out, and providing security for General Council meetings, tribal elections, dances or other tribal events. Tribal police work for the local tribe and are not directly overseen by the Bureau of Indian Affairs, and may share jurisdiction with the state police or marshal's office. Tribal police may, for example, have jurisdiction only for crimes committed by and against Indians in the community whereas state police retain jurisdiction where non-Indians commit crimes on the reservation.