(2) A person may use deadly physical force under the circumstances set forth in subsection (1) of this section only:
(a) In defense of a person as provided in ORS 161.219; or
(b) When the person reasonably believes it necessary to prevent the commission of arson or a felony by force and violence by the trespasser.
(3) As used in subsection (1) and subsection (2)(a) of this section, "premises" includes any building as defined in ORS 164.205 and any real property. As used in subsection (2)(b) of this section, "premises" includes any building. [1971 c.743 §25]