List of law enforcement agencies in New York

List of law enforcement agencies in the State of New York:

State agencies

* Metropolitan Transportation Authority Police (MTA Police)
** Metro-North Railroad Police Department - merged to form the MTA Police Department in 1996.
** Long Island Rail Road Police Department - merged to form the MTA Police Department in 1996.
** Staten Island Rapid Transit Authority Police Department - merged into the MTA Police Department in 2005.
* New York State Court Officers
* New York State Department of Correctional Services
* New York State Department of Environmental Conservation
** New York State Department of Environmental Conservation Police
** New York State Forest Rangers
* New York State Department of Health
**Department of Public Safety, Roswell Park Cancer Institute
* New York State Department of Taxation and Finance
** Petroleum, Alcohol and Tobacco Bureau Police
* New York State Office of Mental Health Police
* New York State Office of Mental Retardation and Developmental Disabilities (OMRDD) Police
* New York State Park Police
** Long Island State Parkway Police - merged into the New York State Police and New York State Park Police in 1980.
* New York State Police
** Long Island State Parkway Police - merged into the New York State Police and New York State Park Police in 1980.
** New York State Capitol Police - merged into the New York State Police in 1998.
** New York State Thruway Authority - Patrolled by Troop T, New York State Police since its inception.
* New York State Special Commission of Investigation
* State University of New York Police - 64 campuses

County agencies

*Albany County
** Albany County Sheriff's Department
*Allegany County
**Allegany County Sheriff’s Office
*Broome County
**Broome County Sheriff's Office
*Cattaraugus County
**Cattaraugus County Sheriff's Office
*Cayuga County
** Cayuga County Sheriff's Office
**Cayuga County Auxiliary Police
*Chautauqua County
**Chautauqua County Sheriff's Office
*Chemung County
** Chemung County Sheriff's Office
*Chenango County
**Chenango County Sheriff’s Office
*Clinton County
**Clinton County Sheriff's Office
*Columbia County
**Columbia County Sheriff's Office
*Cortland County
**Cortland County Sheriff’s Office
*Delaware County
**Delaware County Sheriff's Office
*Dutchess County
**Dutchess County Sheriff's Office
*Erie County
** Erie County Sheriff's Office
*Essex County
**Essex County Sheriff's Office
*Franklin County
**Franklin County Sheriff's Office
*Fulton County
** Fulton County Sheriff's Department
*Genesee County
** Genesee County Sheriff's Office
*Greene County
**Greene County Sheriff's Office
*Hamilton County
**Hamilton County Sheriff's Office
*Herkimer County
**Herkimer County Sheriff's Office
*Jefferson County
**Jefferson County Sheriff's Office
*Lewis County
**Lewis County Sheriff's Office
*Livingston County
**Livingston County Sheriff's Office
*Madison County
**Madison County Sheriff's Office
*Monroe County
** Monroe County Sheriff's Department
*Montgomery County
**Montgomery County Sheriff's Office
*Nassau County
** Nassau County Police Department
**Nassau County Sheriff's Department
**Nassau County Fire Marshals Office
**Nassau County Community College Department of Public Safety
*New York City
** New York City Sheriff's Office
*** Bronx County Sheriff's Office - merged to form the NYC Sheriff's Office in 1942.
*** Kings County Sheriff's Office - merged to form the NYC Sheriff's Office in 1942.
*** New York County Sheriff's Office - merged to form the NYC Sheriff's Office in 1942.
*** Queens County Sheriff's Office - merged to form the NYC Sheriff's Office in 1942.
*** Richmond County Sheriff's Office - merged to form the NYC Sheriff's Office in 1942.
*Niagara County
**Niagara County Sheriff's Department
*Oneida County
**Oneida County Sheriff's Office
*Onondaga County
**Onondaga County Sheriff's Office
**Onondaga County Park Rangers
**Onondaga County Auxiliary Police
*Ontario County
**Ontario County Sheriff's Office
*Orange County
**Orange County Sheriff's Office
*Orleans County
**Orleans County Sheriffs Office
*Oswego County
**Oswego County Sheriff's Office
*Otsego County
**Otsego County Sheriff's Office
*Putnam County
**Putnam County Sheriff's Department
*Rensselaer County
**Rensselaer County Sheriff's Department
*Rockland County
**Rockland County Sheriff's Department
*Saratoga County
**Saratoga County Sheriff's Office
*Schenectady County
**Schenectady County Sheriff's Office
*Schoharie County
**Schoharie County Sheriff's Office
*Schuyler County
**Schuyler County Sheriff's Office
*Seneca County
**Seneca County Sheriff's Office
*Steuben County
**Steuben County Sheriff's Office
*St. Lawrence County
**St. Lawrence County Sheriff's Office
*Suffolk County
** Suffolk County Police Department (SCPD)
***Babylon Town Police Department - merged to form the SCPD in 1960.
****Babylon Village Police Department - merged to form the SCPD in 1960.
****Lindenhurst Police Department - merged to form the SCPD in 1960.
***Brookhaven Town Police Department - merged to form the SCPD in 1960.
****Patchogue Village Police Department - merged to form the SCPD in 1960.
***Islip Town Police Department - merged to form the SCPD in 1960.
****Brightwaters Police Department - mergead to form the SCPD in 1960.
***Huntington Town Police Department - merged to form the SCPD in 1960.
***Smithtown Town Police Department - merged to form the SCPD in 1960.
**Suffolk County Sheriff's Office
**Suffolk County Park Police
***Suffolk County Park Rangers
**Suffolk County Community College Office of Public Safety - 3 campuses
*Sullivan County
**Sullivan County Sheriff's Office
*Tioga County
**Tioga County Sheriff's Office
*Tompkins County
**Tompkins County Sheriff's Office
*Ulster County
**Ulster County Sheriff's Office
*Warren County
**Warren County Sheriff's Office
*Washington County
**Washington County Sheriff's Office
*Wayne County
**Wayne County Sheriff's Office
*Westchester County
**Westchester County Department of Public Safety
***Westchester County Sheriff's Department - merged to form Westchester County DPS in 1979. cite web | url= http://www.westchestergov.com/ps/Site_Index/About_Us/History_of_County_Police.htm|title= History of the Westchester County Police]
***Westchester County Parkway Police - merged to form Westchester County DPS in 1979.
**Westchester County Department of Correction [http://www.westchestergov.com/correction/]
*Wyoming County
**Wyoming County Sheriff's Office
*Yates County
**Yates County Sheriff's Office

City, Village, & Town agencies

College and University agencies

* Binghamton University Police
* Brooklyn College Public Safety
* Broome Community College Campus Safety
* Buffalo State College - Public Safety
* Cayuga Community College Office of Public Safety - 2 Campuses
* Clarkson University Campus Safety
* Colgate University Campus Safety
* College of Technology at Utica-Rome Public Safety
* Columbia University Security
* Cornell University Police
* Cortland University Police
* City University of New York Public Safety Department - 21 Campuses
* Finger Lakes Community College Campus Safety
* Hamilton College Campus Safety
* Herkimer County Community College Campus Safety
* Le Moyne College Department of Security
* Medgar Evers College Security
* Monroe Community College - Brighton Public Safety
* Monroe Community College - Damon City - Protective Services
* New York Univ. Protection Services
* Onondaga Community College Campus Safety
* Plattsburgh State University Police
* Purchase College University Police
* Queens College Security
* Rockland Community College Office of Public Safety
* St. Bonaventure University Security
* State University of New York Police - 64 Campuses
* Suffolk County Community College Office of Public Safety
* Sullivan County Community College Public Safety Department
* Syracuse University - Public Safety
* Tompkins Cortland Community College Office of Public Safety
* Union College - Campus Safety
* University of Rochester Security
* U.S. Military Academy - West Point, Military Police
* Vassar College Security

Federal Police Agencies

*Federal Bureau of Investigation
*United States Department of Veterans Affairs Police
*United States Federal Protective Service
*United States Marshals Service
*United States Postal Inspection Service
*United States Postal Police
*United States Diplomatic Security Service - State Department
*United States Federal Reserve Police
*United States Park Police
*United States National Park Service - Law Enforcement Rangers
*United States Secret Service
*Amtrak Police

Other agencies

*New York City:
**Port Authority of New York and New Jersey Police Department
**Triborough Bridge and Tunnel Authority Police
**American Society for the Prevention of Cruelty to Animals - Humane Law Enforcement Division
**Seagate Police Department - private police force for Seagate, a private community in Brooklyn
**Roosevelt Island Department of Public Safety - private police force for Roosevelt Island
**Co-op City Department of Public Safety - private police force for Co-op City, a private community in The Bronx
**Hunts Point Department of Public Safety - New York City Terminal Market {Police Agency}
*Canadian Pacific Railway Police Department
*Long Island MacArthur Airport Police Department
*Nassau County SPCA - Law Enforcement
*New York Cross Harbor Railroad Police - existed from 1990s through 2006
*Niagra Frontier Transportation Authority Transit Police Department
*SPCA of Westchester County - Law Enforcement
*Suffolk County SPCA - Law Enforcement
*Troy Housing Authority Police Department - Troy
*Ulster County SPCA - Law Enforcement
*Waterfront Commission of New York Harbor Police
*Dutchess County SPCA - Law Enforcement
*Columbia-Greene SPCA Law Enforcement & Investigations Unit

References