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Title 21. Crimes and Punishments

Oklahoma Statutes Citationized
  Title 21. Crimes and Punishments
    Chapter 17 - Perjury
        Section 491 - Perjury Defined - Defense
 Cite as: 21 O.S. § 491 (OSCN 2026)

Whoever, in a trial, hearing, investigation, deposition, certification or declaration, in which the making or subscribing of a statement is required or authorized by law, makes or subscribes a statement under oath, affirmation or other legally binding assertion that the statement is true, when in fact the witness or declarant does not believe that the statement is true or knows that it is not true or intends thereby to avoid or obstruct the ascertainment of the truth, is guilty of perjury, a Class D1 felony offense. It shall be a defense to the charge of perjury as defined in this section that the statement is true.

Historical Data

R.L. 1910, § 2211; Amended by Laws 1965, SB 207, c. 126, § 1, emerg. eff. May 24, 1965; Amended by Laws 2025, HB 2104, c. 486, § 378, eff. January 1, 2026 (superseded document available).

Citationizer® Summary of Documents Citing This Document
Cite Name Level
Oklahoma Attorney General's Opinions
 CiteNameLevel
 2001 OK AG 33, Question Submitted by: The Honorable Johnnie C. Crutchfield, The Honorable Rick M. Littlefield, State Senator, District 14, State Senator, District 1Cited
 2008 OK AG 16, Question Submitted by: The Honorable Patrick Anderson, State Senator, District 19, The Honorable Mike Brown, State Representative, District 4Discussed
Oklahoma Court of Criminal Appeals Cases
 CiteNameLevel
 1988 OK CR 197, 761 P.2d 903, KING v. STATECited
 1993 OK CR 53, 864 P.2d 847, LENZY v. STATEDiscussed at Length
 1995 OK CR 80, 911 P.2d 286, OMALZA v. STATECited
 1975 OK CR 10, 530 P.2d 1026, HOGAN v. STATECited
 2014 OK CR 1, 319 P.3d 681, STATE v. MARCUMCited
 1954 OK CR 33, 268 P.2d 290, MILES v. STATECited
 1981 OK CR 18, 625 P.2d 114, MATTER OF S.A.D.Discussed at Length
 1969 OK CR 122, 453 P.2d 268, BAEZA v. STATEDiscussed
 1971 OK CR 67, 483 P.2d 1386, PHILLIPS v. STATECited
 1971 OK CR 189, 487 P.2d 716, PITMAN v. STATEDiscussed
 1983 OK CR 49, 661 P.2d 1355, STATE v. CONWAYCited
 1997 OK CR 78, 950 P.2d 839, 69 OBJ 87, Slaughter v. StateDiscussed at Length
 1998 OK CR 32, 960 P.2d 368, 69 OBJ 1897, State v. LoveCited
 1998 OK CR 63, 969 P.2d 990, 69 OBJ 4077, Slaughter v. StateCited
 1985 OK CR 35, 697 P.2d 968, CANTRELL v. STATECited
 1985 OK CR 36, 698 P.2d 25, GRAHAM v. LANNINGDiscussed
 1976 OK CR 139, 551 P.2d 291, MARSHALL v. STATECited
Oklahoma Court of Civil Appeals Cases
 CiteNameLevel
 1985 OK CIV APP 30, 707 P.2d 560, Copeland v. AndersonCited
Oklahoma Supreme Court Cases
 CiteNameLevel
 1989 OK 75, 773 P.2d 751, State ex rel. Oklahoma Bar Ass'n v. BrownCited
 1995 OK 35, 894 P.2d 1096, 66 OBJ 1330, Cooper v. Parker-HugheyCited
 2004 OK 46, 94 P.3d 31, STATE ex rel. OKLAHOMA BAR ASSOCIATION v. DOBBSCited
 2007 OK 70, 175 P.3d 353, STATE ex rel. OKLAHOMA BAR ASSOCIATION v. PHILLIPSCited
 1977 OK 152, 569 P.2d 437, STATE EX REL. OKLAHOMA BAR ASS'N v. ZAHORSKYCited
 2021 OK 56, STATE ex rel. OKLAHOMA BAR ASSOCIATION v. EAKINCited
Oklahoma Jury Instructions- Criminal
 CiteNameLevel
  IntroductionCited
  ElementsDiscussed
Title 21. Crimes and Punishments
 CiteNameLevel
 21 O.S. 1290.12, Procedure for ApplicationCited
 21 O.S. 20N, Class D1 Criminal Offenses - PunishmentCited
 21 O.S. 499, Defenses to Charges of PerjuryCited
 21 O.S. 1290.12, Procedure for ApplicationCited
Title 22. Criminal Procedure
 CiteNameLevel
 22 O.S. 1401, Short TitleCited
 22 O.S. 1402, DefinitionsCited
Citationizer: Table of Authority
Cite Name Level
Oklahoma Session Laws - 2025
 CiteNameLevel
 2025 O.S.L. 486, 2025 O.S.L. 486, [HB 2104] - Classification of felony offensesCited
Title 21. Crimes and Punishments
 CiteNameLevel
 21 O.S. 491, Perjury Defined - DefenseCited