ORS 162.095: Defenses to perjury and false swearing limited.

It is no defense to a prosecution for perjury or false swearing that: (1) The statement was inadmissible under the rules of evidence; or (2) The oath or affirmation was taken or administered in an irregular manner; or (3) The defendant mistakenly believed the false statement to be immaterial. [1971 c.743 §186]