Revised Code of Washington

Wash. Rev. Code § 5.28.020 (2026)

How administered

✓ current as of May 2026 Cite as: Wash. Rev. Code § 5.28.020 (2026)
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An oath may be administered as follows: The person who swears holds up his or her hand, while the person administering the oath thus addresses him or her: "You do solemnly swear that the evidence you shall give in the issue (or matter) now pending between . . . . . . . . and . . . . . . . . shall be the truth, the whole truth, and nothing but the truth, so help you God." If the oath be administered to any other than a witness giving testimony, the form may be changed to: "You do solemnly swear you will true answers make to such questions as you may be asked," etc.
[ 2011 c 336 s 132; 2 H. C. s 1694; 1869 p 378 s 2; RRS s 1265.]
Notes of Decisions
Cited in 7 cases, 1974–2008 · leading case: State v. Kirkman
State v. Kirkman (2007) wash · cites it 2× “See RCW 5.28.020. A jury must still determine credibility and truthfulness of each witness.”
State v. Kirkman (2007) wash “See RCW 5.28.020. A jury must still determine credibility and truthfulness of each witness.”
Schoultz v. Department of Motor Vehicles (1978) wash “1, § 6; RCW 5.28.020, .030, .050, indicating flexibility in finding an adequate form of oath or affirmation.”
In Re Estate of Nikiporez (1978) washctapp · cites it 2× “, as in RCW 5.28.020. In turn, RCW 5.28.020 provides, regarding the oath administered to someone other than a witness giving testimony, "the form may be changed to: 'You do solemnly swear you will true answers make to such questions as you may be asked,' etc.”
Western Washington Operating Engineers Apprenticeship Committee v. Washington State Apprenticeship & Training Council (2008) washctapp “452(3), and WAC 10-08-160(1) requires that “[e]very person called as a witness in a hearing shall swear or affirm that the testimony he or she is about to give in the hearing shall be the truth according to the provisions of RCW 5.28.020 through 5.28.060.” ¶31 Here, the Council…”
State v. Lewis (1974) washctapp “The second-degree perjury statute under which the defendant was convicted, RCW 9.72.030, requires a knowingly false swearing.”
WESTERN WASH. OPERATING ENG. v. Council (2008) washctapp “452(3), and WAC 10-08-160(1) requires that "[e]very person called as a witness in a hearing shall swear or affirm that the testimony he or she is about to give in the hearing shall be the truth according to the provisions of RCW 5.28.020 through 5.28.060." ¶ 31 Here, the Council…”
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