Expert Witness Services in Suffolk County, NY

For Suffolk County the Supreme Court's page states that the court is located in Riverhead and Central Islip, that matrimonial and guardianship proceedings take place predominately in Central Islip and that all other civil matters are heard in Riverhead; it names the Hon. Alan D. Oshrin Supreme Court Building and the Arthur M. Cromarty Court Complex in Riverhead and the John P. Cohalan Jr. Court Complex in Central Islip, where it places the Hon. Marquette L. Floyd Supreme Court Building, and states that outside New York City the Supreme Courts hear civil matters while the County Courts hear criminal matters. The court system's court locator places the County Court, Suffolk County, in the Cromarty complex in Riverhead, the Suffolk County Family Court in Central Islip with a second location in that complex, and the Suffolk County Surrogate's Court in Riverhead, and lists the Suffolk County District Court in six numbered districts with locations in Ronkonkoma, Central Islip, Lindenhurst, Huntington Station, Hauppauge and Patchogue. Appeals from the Supreme Court, Suffolk County, are heard by the Appellate Division, Second Department, which lists Suffolk among its ten downstate counties, hears the civil appeals from the Supreme Court, the Surrogate's Court, the Family Court and the Court of Claims there, and sits in Brooklyn. Melville is a Suffolk County municipality.

The Workers' Compensation Board's locations page assigns every county to a district office: claims arising in Suffolk County are heard through the Board's Long Island district office. The locations page puts the Long Island office in Islandia. The Eastern District of New York, the U.S. district court for Suffolk County, has courthouses in Brooklyn and Central Islip.

In the Quarterly Census of Employment and Wages for January to March 2026, the largest private employment supersectors in Suffolk County are trade, transportation and utilities, education and health services, professional and business services, leisure and hospitality, and manufacturing. Suffolk County belongs to the New York-Newark-Jersey City metropolitan area, and the labor data panel on the page reports the metropolitan area's own wages and unemployment rate, as it does on each New York page this site carries an area record for. The wage and employment data published for the New York-Newark-Jersey City area also covers Bergen County, where KWVRS is headquartered.

KWVRS accepts New York matters from its headquarters in Hackensack, New Jersey, and writes every Suffolk County report to the disclosure format the court or agency hearing the case expects.