Need for Personal Knowledge

A witness may testify to a matter only if evidence is introduced sufficient to support a finding that the witness has personal knowledge of the matter. Evidence to prove personal knowledge may consist of the witness’s own testimony. This rule does not apply to a witness’s expert testimony under Rule 703. [Restyled effective July 1, 2016.] Advisory Committee Historical Note Effective July 1, 2016, the Rule was amended as part of the general restyling of the Evidence Rules. Effective June 16, 2016, the “Comment” was retitled “Advisory Committee Note.” Advisory Committee Note The language of Rule 602 has been amended as part of the general restyling of the Evidence Rules to make them more easily understood and to make style and terminology consistent throughout the rules. These changes are intended to be stylistic only. There is no intent to change any result in any ruling on evidence admissibility.