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Legal Memorandum: Admission of Expert Evidence in NY

Issue: What is the standard for admission of expert evidence, under New York law?

Area of Law: Litigation & Procedure
Keywords: Expert evidence; Scientific principles or procedures; Standard for admission
Jurisdiction: New York
Cited Cases: 399 N.E.2d 532; 89 N.Y.2d 111; 60 N.Y.2d 296; 231 A.D.2d 678; 457 N.E.2d 717; 674 N.E.2d 322; 526 N.Y.S.2d 476; 647 N.Y.S.2d 831; 423 N.Y.S.2d 645; 469 N.Y.S.2d 611; 157 A.D.2d 396; 515 N.Y.S.2d 819; 54 App. D.C. 46; 130 A.D.2d 705; 172 A.D.2d 494; 651 N.Y.S.2d 392; 293 F. 1013; 238 A.D.2d 559; 224 A.D.2d 570; 48 N.Y.2d 455
Cited Statutes: None
Date: 08/01/2000

For a discussion of whether a Motion to Renew and Reargue was timely and appropriate, see A s "Porowski v. Mason, 238 A.D.2d 559, 560, 657 N.Y.S.2d" c 1 l "Porowski v. Mason, 238 A.D.2d 559, 657 N.Y.S.2d 71 (2nd Dep’t 1997)"Porowski v. Mason, 238 A.D.2d 559, 560, 657 N.Y.S.2d 71 (2nd Dep’t 1997) (motion to reargue); A s "Cannistra v. Gibbons, 224 A.D.2d 570, 571, 639 N.Y.S" c 1 l "Cannistra v. Gibbons, 224 A.D.2d 570, 639 N.Y.S.2d 48 (2nd Dep’t 1996)"Cannistra v. Gibbons, 224 A.D.2d 570, 571, 639 N.Y.S.2d 48 (2nd Dep’t 1996) (motion to renew).  See A s "Porowski v. Mason, 238 A.D.2d 559, 560, 657 N.Y.S.2d" c 1Porowski, 238 A.D.2d at 560, 657 N.Y.S.2d 71.

New York follows the long-recognized rule of A s "Frye v. U.S., 54 App. D.C. 46, 293 F. 1013 (D.C. Ct." c 1 l "Frye v. U.S., 54 App. D.C. 46, 293 F. 1013 (D.C. Ct. App. 1923)"Frye v. U.S., 54 App. D.C. 46, 293 F. 1013 (D.C. Ct. App. 1923), that expert testimony based on scientific principles or procedures is admissible after a principle or procedure has "gained general acceptance" in its specified field.  See A s "People v. Wernick, 89 N.Y.2d 111, 115, 651 N.Y.S.2d " c 1 l "People v. Wernick, 89 N.Y.2d 111, 651 N.Y.S.2d 392, 674 N.E.2d 322 (1996)"People v. Wernick, 89 N.Y.2d 111, 115, 651 N.Y.S.2d 392, 674 N.E.2d 322 (1996).  An expert should be allowed to offer an opinion when it would be helpful to clarify […]

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