2.04.260 [Rule 23] Witnesses; Competence; Personal Knowledge

Every person is competent to testify except as otherwise provided by the Rules or by statute.

A witness may not testify about a matter unless it is shown that the witness has personal knowledge about the matter. Such a showing may, but need not, consist of the witness' own testimony. The Rule is subject to Section 2.04.460; Rule 43, regarding opinion testimony of experts.