40.315 Rule 602
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/or/ors-chapter-40/evidence-code/witnesses/40-315·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
40.315 Rule 602. Lack of personal knowledge. Subject to the provisions of ORS 40.415, a witness may not testify to a matter unless evidence is introduced sufficient to support a finding that the witness has personal knowledge of the matter. Evidence to prove personal knowledge may, but need not, consist of the testimony of the witness. [1981 c.892 §44]