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Law enforcement inNew York City is carried out by numerous federal, state, city and private agencies. New York City has the highest concentration of law enforcement in theUnited States.

Members of New York City law enforcement agencies receive their powers and authority from New York State Criminal Procedure Law as listed:

• Police Officers who are listed under Article 2, §1.20 section 34 (A through V).^[1]
• Peace Officers who are listed under Article 2, §2.10 (1 through 85).^[2] The authority of peace officers are very limited by sections and/or subdivisions of the criminal procedure law, New York State penal law and employer restrictions.
• Special Patrolmen/Special Officer The designation as a NYC special patrolmen or special officer is unique to New York City. Special Patrolman^[3] is granted by the Police Commissioner of New York City Police Department (NYPD) to certain New York City agencies and a few privately owned and operated companies who provide security. This designation confers very limited NYS Peace Officer authority upon the employee pursuant to New York State Criminal Procedure Law § 2.10 sub(27) and employer policies, this authority is limited to the employee's geographical area of employment and assignment and only while such employee is working.

Patch	Force	Parent department	Duties	Type	Number of Personnel
	New York City Police Department (NYPD)	-	Responsible for the Policing and investigations of all crimes in New York City	Police Officers[4]	Approx. 36,230
	New York City Department of Environmental Protection Police (DEP Police)	New York City Department of Environmental Protection (DEP)	Responsible for the protecting of NYC's water supply system	Police Officers[5]	Approx. 200
	New York City Fire Department Fire Marshals	New York City Fire Department (FDNY)	Responsible for the Investigation of serious fires and arson within NYC	Police Officers[6]	Approx. 150
	New York City Sheriff's Office	New York City Department of Finance (DOF)	Responsible for the enforcing of civil court orders and investigate tax / deed fraud in NYC	Peace Officers[7]	Approx. 150
	New York City Department of Correction (NYC DOC)	-	Responsible for the care and custody of inmate in NYC correctional facilities	Peace Officers[8]	Approx. 9500
	New York City Department of Probation	-	Responsible for supervision people placed on probation by the NYC court system.	Peace Officers[9]	Approx 60
	New York City Administration for Children's Services Police	New York City Administration for Children's Services (ACS)	Responsible for the safety and security at New York City Administration for Children's Services facilities	Special Officer[10]
	New York City Business Integrity Commission (BIC)	-	Responsible for regulating private catering industry, public wholesale markets businesses, and the shipboard gambling industry	Special Patrolmen[11]	Approx 60
	New York City Department of Citywide Administrative Services Police	New York City Department of Citywide Administrative Services (DCAS)	Responsible for the safety and security at NYC Department of Citywide Administrative Services facilities.	Special Officer[12]	Approx. 15
	New York City Health & Hospitals Police (NYHP)	New York City Health and Hospitals Corporation (HHC)	Responsible for the safety and security at NYC Health and Hospital facilities	Special Officer[13]	Approx. 1250
	New York City Department of Health and Mental Hygiene Police	New York City Department of Health and Mental Hygiene (DOHMH)	Responsible for the safety and security at NYC Department of Health and Mental Hygiene facilities.	Special Officer[14]	Approx 10
	New York City Department of Homeless Services Police	New York City Department of Homeless Services (DHS)	Responsible for the safety and security at NYC Department of Homeless Facilities	Special Officer[15]	Approx. 380
	New York City Human Resources Administration Police	New York City Human Resources Administration (HRA)	Responsible for the safety and security at NYC Department of Human Resources Administration Facilities	Special Officer[16]	Approx. 130
	New York City Department of Investigation (DOI)	-	Responsible for investigating NYC governmental corruption & fraud	Special Patrolmen[17]	Approx 35
	New York City Parks Enforcement Patrol (NYC PEP)	New York City Department of Parks and Recreation	Responsible for the safety and security at NYC Parks and properties	Special Officer[18]	Approx. 85
	New York City Police Department School Safety Division (SSD)	New York City Police Department (NYPD)	Responsible for the safety and security at NYC public schools	Special Officer[19]	Approx. 5000
	New York City Department of Sanitation Police (DSNY Police)	New York City Department of Sanitation (DSNY)	Responsible for the enforcement NYC Sanitation laws and health code regulations	Special Patrolmen[20]	Approx. 80
	New York City Taxi and Limousine Commission Police	New York City Taxi and Limousine Commission (TLC)	Responsible for the enforcing of NYC taxi licensing regulations concerning livery vehicles	Special Patrolman[21]	Approx. 205

Since 1942, correction and probation services have been handled by separate agencies, not the sheriff's office.^[22]

TheNew York City Marshals, who are independent public officers enforcing civil debt, are not peace officers. New York City Marshals are regulated by theNew York City Department of Investigation.^[23]

TheGovernment of New York State operates one of the highest numbers of law enforcement agencies in the United States. While their jurisdiction stretches throughout New York City, many functions are duplicated by municipal agencies.

These agencies have jurisdiction in both New York and neighboring states.

Patch	Force	Parent department	Duties	Titled as	States	Number of Personnel
	Port Authority of New York and New Jersey Police Department(PAPD)	Port Authority of New York and New Jersey	General law enforcement concerning PANYNJ	Police Officer	New York andNew Jersey	Approx. 2200+
	Metropolitan Transportation Authority Police Department (MTAPD)	Metropolitan Transportation Authority	General law enforcement concerning LIRR, MNR, and SIRR properties	Police officer	New York andConnecticut	Approx. 1,200[26]

• Brooklyn Public Library Department of Public Safety
• MTA Bridge and Tunnel Officers
• Roosevelt Island Public Safety Department (Public safety duties at Roosevelt Island and Tramway)

Patch	Force	Parent Agency	Duties	Title	Number of Personnel
	New York State University Police	State University of New York (SUNY)	Responsible for the safety and security at SUNY campuses and facilities	Police Officers[27]	Approx. 684
	City University of New York Public Safety Department	City University of New York (CUNY)	Responsible for the safety and security at CUNY campuses and facilities	Public Safety Officer[28]	Approx. 715

A number of private communities have their own public safety departments. A limited number of personnel are New York State peace officers after completing the New York State Peace Officer Standard of Training (POST) course. This grants them very limited peace officer authority within their geographical area of employment in New York City.

Patch	Force	Parent Company	Duties	Title	Number of Personnel
	Bay Terrace Public Safety Department	Cord Meyer Development LLC	Public Safety atBay Terrace Shopping Center	Public Safety	-
	Big Six Towers Public Safety Department	Mitchell-Lama Cooperative Housing Company	Public Safety duties at Big Six Towers	Public Safety	Approx 8
	Co-op City Department of Public Safety (CCPD)	RiverBay Corporation	Public Safety Duties at Co-op City	Special Patrolmen	Approx. 100
	Hunts Point Department of Public Safety (HPPS)	Hunts Point Cooperative Market	Public Safety Duties atHunts Point Market	Special Patrolmen	Approx. 20
	Morningside Heights Housing Corporation Department of Public Safety (MHHC PSD)	Morningside Gardens	Public Safety Duties at Morningside Gardens property	Public Safety	-
	New York Racing Association Peace Officers	New York Racing Association	Public Safety Duties at NYRA facilities	Special Police	Approx 15
	Parkchester Department of Public Safety	Parkchester Preservation Management	Public Safety Duties at Parkchester property	Special Patrolmen	Approx. 50
	Peter Cooper Village Stuyvesant Town Public Safety (PCVST)	Stuyvesant Town–Peter Cooper Village	Public Safety Duties at Peter Cooper Village community	Public Safety	Approx 10
	Sea Gate Public Safety Department (SGPD)	Seagate Homeowners Association	Public Safety Duties at Sea Gate private community	Public Safety	Approx. 10
	Spring Creek Towers Public Safety Department	Starrett City Associates	Public Safety Duties at Spring Creek Towers	public safety	Approx 10

1. TheTimes Square Alliance has its ownPublic Safety Officers (PSOs) who act as the 'eyes and ears' for the local police.^[29] They are unarmed and their motto is:New York's Most Helpful.
2. TheFlatiron 23rd Street Partnership BID has its ownPublic Safety Officers who act as ambassadors for the area. They patrol in uniform, during the daytime, seven days a week, regardless of weather.^[30]

In New York State, each county has an elected district attorney who is responsible for the prosecution of violations of New York state laws. Federal law in the city of New York is prosecuted by theU.S. Attorney for the Southern District of New York or theUnited States Attorney for the Eastern District of New York.

• Crime in New York City
• List of law enforcement agencies in New York
• Mary Shanley, 4th female detective
• New York City Police Department Auxiliary Police

• Law enforcement in New York City
• New York City-related lists

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