Cal. Evid. Code § 700 : CALIFORNIA EVIDENCE CODE — WITNESSES — COMPETENCY — Qualification as witness generally TEXT PDF Except as otherwise provided by statute, every person, irrespective of age, is qualified to be a witness and no person is disqualified to testify to any matter. Ca. Evid. Code § 700 Amended by Stats. 1985, Ch. 884, Sec. 1.