Is lay witness testimony that goes beyond the facts the witness personally observed, is inadmissible?
California, United States of America
The following excerpt is from People v. Walker, F078766 (Cal. App. 2021):
3. All lay witness testimony (including lay opinion testimony) that goes beyond the facts the witness personally observed, is inadmissible. (People v. McAlpin (1991) 53 Cal.3d 1289, 1308; Evid. Code, 702, subd. (a) [Except for expert witness testimony, "the testimony of a witness concerning a particular matter is inadmissible unless he has personal knowledge of the matter."].)
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