New York Codes, Rules and Regulations
Title 22 - JUDICIARY
Subtitle A - JUDICIAL ADMINISTRATION
Chapter II - UNIFORM RULES FOR THE NEW YORK STATE TRIAL COURTS
Part 200 - Uniform Rules For Courts Exercising Criminal Jurisdiction
Rules Applicable to Superior Courts
Section 200.13 - Impaneling of grand juries

There shall be a grand jury drawn and impaneled for such terms of a superior court as may be provided on the annual schedule of terms established by the Chief Administrator of the Courts. Whenever the public interest requires, additional grand juries may be drawn and impaneled as authorized by the Chief Administrator.