New York Consolidated Laws, Criminal Procedure Law - CPL § 700.55 Eavesdropping and video surveillance warrants;  custody of warrants, applications and recordings

1. Applications made and warrants issued under this article shall be sealed by the justice.  Any eavesdropping or video surveillance warrant, together with a copy of papers upon which the application is based, shall be delivered to and retained by the applicant as authority for the eavesdropping or video surveillance authorized therein.  A copy of such eavesdropping or video surveillance warrant, together with all the original papers upon which the application was based, must be retained by the justice issuing the same, and, in the event of the denial of an application for such an eavesdropping or video surveillance warrant, a copy of the papers upon which the application was based must be retained by the justice denying the same.  Such applications and warrants may be disclosed only upon a showing of good cause before a court and may not be destroyed except on order of the issuing or denying justice, and in any event must be kept for ten years.

2. Custody of the recordings made pursuant to subdivision three of section 700.35 may be wherever the justice orders.  They may not be destroyed except upon an order of the justice who issued the warrant and in any event must be kept for ten years.  Duplicate recordings may be made for use or disclosure pursuant to the provisions of subdivisions one and two of section 700.65 for investigations.