Self-Defense Laws in Oregon

A person in lawful possession or control of premises is justified in using physical force upon another person to defend the premises against a trespasser as provided in ORS 161.225(1). Deadly physical force may be used in that situation only in defense of a person as provided in ORS 161.219, or when the person reasonably believes it necessary to prevent the commission of arson or a felony by force and violence by the trespasser. Under ORS 161.219, deadly physical force is justified only if the person reasonably believes the other person is committing or attempting to commit a felony involving the use or threatened imminent use of physical force against a person, committing or attempting to commit a burglary in a dwelling, or using or about to use unlawful deadly physical force against a person.