Perjury in the first degree.
Known as the Washington Criminal Code
The act spans §§ 9–9 (401 sections).
Applied in 25 court decisions — leading case Stiley v. Block (1996)
Most recently applied in Dan Young, V. Todd S. Rayan (July 2023)
2011 c 336 s 391; 1975 1st ex.s. c 260 s 9A.72.020.
Court decisions citing this, by year. The dip in the last several years is a data-coverage gap, not a real trend — our corpus holds fewer opinions from the most recent years, so recent citations are undercounted.
(1) A person is guilty of perjury in the first degree if in any official proceeding he or she makes a materially false statement which he or she knows to be false under an oath required or authorized by law.
(2) Knowledge of the materiality of the statement is not an element of this crime, and the actor's mistaken belief that his or her statement was not material is not a defense to a prosecution under this section.
(3) Perjury in the first degree is a class B felony.
Official source: Washington State Legislature. Reproduced from public-domain Washington statutes; confirm against the official source for the current text. Not legal advice.