Criteria for Disclosure from Nonparty Witness

The Second Department explained the criteria for disclosure from a nonparty witness:

A party seeking disclosure from a nonparty witness must demonstrate that the disclosure sought is material and necessary, and must set forth the “circumstances or reasons” why disclosure is “sought or required” from such nonparty witness (CPLR 3101[a][4]…). Here, the plaintiff failed to demonstrate that additional testimony from the nonparty witnesses or the information sought would be material and necessary to the prosecution of this case (see CPLR 3101[a]…).  Dicenso v Wallin, 2013 NY Slip Op 05612, 2nd Dept 8-14-13