(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.

Attorney's Note

Under the Washington Code, punishments for crimes depend on the classification. In the case of this section:
ClassPrisonFine
class B felonyup to 10 yearsup to $20,000
For details, see Wash. Rev. Code § 9A.20.021
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Terms Used In Washington Code 9A.72.020

  • Materially false statement: means any false statement oral or written, regardless of its admissibility under the rules of evidence, which could have affected the course or outcome of the proceeding;
Washington Code 9A.72.010
  • Official proceeding: means a proceeding heard before any legislative, judicial, administrative, or other government agency or official authorized to hear evidence under oath, including any referee, hearing examiner, commissioner, notary, or other person taking testimony or depositions;
  • Washington Code 9A.72.010
  • person: may be construed to include the United States, this state, or any state or territory, or any public or private corporation or limited liability company, as well as an individual. See Washington Code 1.16.080
  • (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.