Cal. Evidence Code § 600 : California Evidence Code — Burden Of Proof; Burden Of Producing Evidence; Presumptions And Inferences — Presumptions And Inferences — General — Presumption and inference defined Date: 31 Aug 2016 TEXT PDF Current through the 2016 Legislative Session (a) A presumption is an assumption of fact that the law requires to be made from another fact or group of facts found or otherwise established in the action. A presumption is not evidence. (b) An inference is a deduction of fact that may logically and reasonably be drawn from another fact or group of facts found or otherwise established in the action. Ca. Evid. Code § 600