New York Consolidated Laws, Criminal Procedure Law - CPL § 245.55 Flow of information

3. 911 telephone call and police radio transmission electronic recordings, police worn body camera recordings and other police recordings.  (a) Whenever an electronic recording of a 911 telephone call or a police radio transmission or video or audio footage from a police body-worn camera or other police recording was made or received in connection with the investigation of an apparent criminal incident, the arresting officer or lead detective shall expeditiously notify the prosecution in writing upon the filing of an accusatory instrument of the existence of all such known recordings.  The prosecution shall expeditiously take whatever reasonable steps are necessary to ensure that all known electronic recordings of 911 telephone calls, police radio transmissions and video and audio footage and other police recordings made or available in connection with the case are preserved.  Upon the defendant's timely request and designation of a specific electronic recording of a 911 telephone call, the prosecution shall also expeditiously take whatever reasonable steps are necessary to ensure that it is preserved.

(b) If the prosecution fails to disclose such an electronic recording to the defendant pursuant to paragraph (e), (g) or (k) of subdivision one of section 245.20 of this article due to a failure to comply with this obligation by police officers or other law enforcement or prosecution personnel, the court upon motion of the defendant shall impose an appropriate remedy or sanction pursuant to section 245.80 of this article.