Constitution of the State of New York Art. VI § 1. [Establishment and organization of unified court system;  courts of record;  service and execution of process]

a. There shall be a unified court system for the state.  The state-wide courts shall consist of the court of appeals, the supreme court including the appellate divisions thereof, the court of claims, the county court, the surrogate's court and the family court, as hereinafter provided.  The legislature shall establish in and for the city of New York, as part of the unified court system for the state, a single, city-wide court of civil jurisdiction and a single, city-wide court of criminal jurisdiction, as hereinafter provided, and may upon the request of the mayor and the local legislative body of the city of New York, merge the two courts into one city-wide court of both civil and criminal jurisdiction.  The unified court system for the state shall also include the district, town, city and village courts outside the city of New York, as hereinafter provided.

b. The court of appeals, the supreme court including the appellate divisions thereof, the court of claims, the county court, the surrogate's court, the family court, the courts or court of civil and criminal jurisdiction of the city of New York, and such other courts as the legislature may determine shall be courts of record.

c. All processes, warrants and other mandates of the court of appeals, the supreme court including the appellate divisions thereof, the court of claims, the county court, the surrogate's court and the family court may be served and executed in any part of the state.  All processes, warrants and other mandates of the courts or court of civil and criminal jurisdiction of the city of New York may, subject to such limitation as may be prescribed by the legislature, be served and executed in any part of the state.  The legislature may provide that processes, warrants and other mandates of the district court may be served and executed in any part of the state and that processes, warrants and other mandates of town, village and city courts outside the city of New York may be served and executed in any part of the county in which such courts are located or in any part of any adjoining county.