People v. Navarro, 99 Cal. App. 3d Supp. 1, 160 Cal. Rptr. 692 (Cal. App. Dep't Super. Ct. 1979)
People v. Navarro is a foundational California criminal law case on mistake of fact and the claim-of-right defense in theft prosecutions.
Does an honest but unreasonable mistake of fact—specifically, a good-faith belief in consent, abandonment, or a claim of right—negate the specific intent required for theft, such that the jury must be instructed that reasonableness is not required?
Theft (larceny) is a specific intent crime requiring an intent to permanently deprive the owner of property. A defendant's good-faith belief that he has permission to take the property, that it is abandoned, or that he has a bona fide claim of right to it negates the specific intent to steal. For specific intent crimes, a mistake of fact is a defense if it actually negates the required mental state; the belief need not be reasonable so long as it is honestly held in good faith.
Yes. The trial court erred by instructing that the defendant's mistake-of-fact/claim-of-right belief must be reasonable. For theft, an honest belief—even if unreasonable—negates the specific intent to steal. The conviction was reversed due to instructional error.
Navarro is a staple in criminal law courses for the proposition that specific intent crimes turn on a defendant's actual mental state, not on an objective reasonableness overlay. It teaches that an honest mistake of fact—or a bona fide claim of right—defeats the specific intent for theft even if the belief is unreasonable. The case is often paired with the Model Penal Code's approach (which similarly asks whether the mistake negates the required culpability) and with later California cases refining limits on the claim-of-right doctrine (e.g., not a defense when taking property merely to satisfy a debt). For exam purposes, Navarro alerts students to identify the offense's intent type, analyze the defendant's subjective belief, and separate the evidentiary role of reasonableness from doctrinal requirements.