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CPLR 4515 · Article 45. Evidence

Form of expert opinion

Verbatim from the official edition

Text — Law content up to date as of July 3, 2026, as published by the New York State Senate (Open Legislation)

Rule 4515. Form of expert opinion. Unless the court orders otherwise, questions calling for the opinion of an expert witness need not be hypothetical in form, and the witness may state his opinion and reasons without first specifying the data upon which it is based. Upon cross-examination, he may be required to specify the data and other criteria supporting the opinion.

Source of truth

Edition
Law content up to date as of July 3, 2026, as published by the New York State Senate (Open Legislation)
Official file
https://legislation.nysenate.gov/pdf/laws/CVP4515
Text hash
sha256 109da7a0b332fc47dc76015d960ca51d0ef0ef4da4f27b18eac1de924a13aae6
Composed by
gen_ny_statutes.py 2026-11-10: the Senate's Open Legislation law tree (GET /api/3/laws/<ID>?full=true) read in document order; the Senate's PDF of the whole law (GET /pdf/laws/<ID>?full=true), read with PDFium, prints the same words in the same order

Procedural information only. Not legal advice and not a substitute for the advice of an attorney. Confirm the current text with the official publisher before relying on it.