CALIFORNIA EVIDENCE: CIVIL AND CRIMINAL
...Opinion & Scientific Evidence
......Lay Opinion
.........When Not Permitted
3 Cards On This Topic:

D's corporate representative, designated as the "person most knowledgeable," still testifies as a lay witness, not an expert.

In motorcycle/truck accident case, trial court did not err in excluding proffered expert witness testimony about normal reactions of motorcycle riders where D failed to make appropriate offer of proof.

No abuse of discretion in excluding testimony of D's lay witnesses as they could not counter the opinions of SVPA experts on the psych issue of whether D was likely to reoffend if released to community for treatment.