Whether a district court may exclude a necessity defense before trial when the defendant’s proffer cannot legally establish the defense’s required elements.
Holding
Yes. A court may preclude the defense if the proffered evidence is deficient as a matter of law on any one of its required elements; the appellate court reviews that decision de novo.
Reasoning
A defendant invoking necessity must make a colorable showing that the defendant chose the lesser of two evils, acted to prevent imminent harm, reasonably expected a direct causal connection between the illegal act and the harm to be avoided, and lacked legal alternatives. These requirements are conjunctive, so failure on any element defeats the defense.
The district court had concluded that the asserted harm was not sufficiently immediate, that the defendants’ conduct would not abate it, and that lawful alternatives remained available. Although the Ninth Circuit could have affirmed on those case-specific grounds, it addressed the more fundamental question whether necessity is available at all for this form of protest.