N.Y. Crim. Proc. Law § 680.40

§ 680.40 Examination of witnesses on commission; when commission\n issuable upon application of people.\n When a commission has been issued upon application of a defendant\npursuant to section 680.20, the court may, upon application of the\npeople, issue another commission for examination, either in the same or\nanother jurisdiction, of a person designated by the people, under the\nsame conditions as prescribed in said section 680.20. In such case, the\ncourt may, upon application of the defendant, determine, in the manner\nprovided in section 680.30, that such commission shall also authorize\nexamination of a person or persons designated by the defendant.\n