N.Y. State Finance Law § 190
(c) Prior to the expiration of the sixty day period or any extensions obtained under paragraph (b) of this subdivision, the attorney general shall notify the court that he or she:
(iii) Upon a showing by the attorney general or a local government that the original plaintiff's unrestricted participation during the course of the litigation would interfere with or unduly delay the prosecution of the case, or would be repetitious or irrelevant, or upon a showing by the defendant that the original qui tam plaintiff's unrestricted participation during the course of the litigation would be for purposes of harassment or would cause the defendant undue burden, the court may, in its discretion, impose limitations on the original plaintiff's participation in the case, such as:
9. Certain actions barred. (a) The court shall dismiss a qui tam action under this article if:
(b) The court shall dismiss a qui tam action under this article, unless opposed by the state or an applicable local government, or unless the qui tam plaintiff is an original source of the information, if substantially the same allegations or transactions as alleged in the action were publicly disclosed: