List of law enforcement agencies in Long Island

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The List of Long Island law enforcement agencies provides an inclusive list of law enforcement agencies serving New York's Long Island. This includes those agencies serving the New York City boroughs of Brooklyn and Queens on the western portion of Long Island along with those serving the suburban counties of Nassau County and Suffolk County.

Federal government agencies[edit]

State agencies operating on Long Island[edit]

Bi-state agencies[edit]

New York City[edit]

The New York City Transit Police and the New York City Housing Authority Police were merged into the NYPD in 1995, the Brooklyn Police Department and the Long Island City Police Department in 1898 and the Town of Morrisania Police Department in 1879.

Each of the five counties of New York City — New York (Manhattan), Bronx, Richmond (Staten Island), Kings (Brooklyn) and Queens — had a county sheriff's office. In 1942 they were merged to form the New York City Sheriff's Office. In 1939, the corrections part of the each county sheriff's office separated and became the consolidated New York City Department of Correction.

Nassau County[edit]

Suffolk County[edit]

A Suffolk County Police boat


State agencies[edit]

New York City agencies[edit]

Suffolk County agencies[edit]


  1. ^
  2. ^ "Investigations Division - New York State Attorney General".