Proof of facts or writing by methods other than those authorized in this article

N.Y. Civil Practice Law & Rules Law § 4543, under Evidence.

N.Y. Civil Practice Law & Rules Law § 4543

§ 4543. Proof of facts or writing by methods other than those\nauthorized in this article. Nothing in this article prevents the proof\nof a fact or a writing by any method authorized by any applicable\nstatute or by the rules of evidence at common law.\n