Practice point: The statute is liberally construed in order to require disclosure, upon request, of any facts bearing on the controversy which will assist preparation for trial by sharpening the issues and reducing delay and prolixity. To compel a deposition, a defendant must show that the disclosure sought is material and necessary. If a defendant is seeking disclosure from a nonparty witness, the defendant must provide notice of the circumstances or reasons why the disclosure is sought or required.
Case in point: Alumil Fabrication, Inc. v. F.A. Alpine Window Mfg. Corp., NY Slip Op 04410 (2d Dep't June 7, 2017)
Here is the decision.
Tomorrow's issue: Leave to amend a pleading.