If scientific, technical, or other specialized knowledge will assist the trier of fact to understand the evidence or to determine a fact in issue, a witness qualified as an expert by knowledge, skill, experience, training, or education may testify in the form of an opinion or otherwise, if the proponent demonstrates to the court that it is more likely than not that:

1. The expert’s scientific, technical, or other specialized knowledge will help the trier of fact to understand the evidence or to determine a fact in issue;

2. The testimony is based upon sufficient facts or data;

3. The testimony is the product of reliable principles and methods; and

4. The expert’s opinion reflects a reliable application of the principles and methods to the facts of the case.

Historical Data

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Laws 1978, SB 276, c. 285, § 702, eff. October 1, 1978; Amended by Laws 2009, HB 1603, c. 228, § 18, eff. November 1, 2009 (repealed by Laws 2013, 1st Extr. Sess., SB 6, c. 15, § 1); Amended by Laws 2013, 1st Extr. Sess., SB 6, c. 15, § 2, as amended by Laws 2013, 1st Extr. Sess., SB 6, c. 15, § 3 (superseded document available); Amended by Laws 2025, SB 453, c. 311, § 9, eff. September 1, 2025 (superseded document available).

Citationizer^® Summary of Documents Citing This Document

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Cite	Name	Level
Oklahoma Court of Criminal Appeals Cases
	Cite	Name	Level
	1988 OK CR 14, 748 P.2d 999,	COSLOW v. STATE	Cited
	1988 OK CR 83, 753 P.2d 926,	BERRY v. STATE	Cited
	1988 OK CR 271, 765 P.2d 1215,	McCARTY v. STATE	Discussed
	1989 OK CR 51, 779 P.2d 562,	FOX v. STATE	Cited
	1989 OK CR 52, 779 P.2d 580,	FOWLER v. STATE	Cited
	1989 OK CR 53, 779 P.2d 987,	CAVAZOS v. STATE	Cited
	1990 OK CR 5, 788 P.2d 387,	MOORE v. STATE	Cited
	1991 OK CR 14, 806 P.2d 655,	DAVENPORT v. STATE	Discussed
	1992 OK CR 55, 840 P.2d 1,	BECHTEL v. STATE	Cited
	1993 OK CR 7, 846 P.2d 1124,	WOODRUFF v. STATE	Cited
	1993 OK CR 8, 847 P.2d 368,	ROMANO v. STATE	Cited
	1994 OK CR 24, 877 P.2d 1143,	REVILLA v. STATE	Cited
	1995 OK CR 3, 892 P.2d 646,	CLAYTON v. STATE	Cited
	1995 OK CR 10, 889 P.2d 319,	TAYLOR v. STATE	Discussed at Length
	1995 OK CR 45, 904 P.2d 89,	CANNON v. STATE	Cited
	1995 OK CR 74, 909 P.2d 92,	ROMANO v. STATE	Cited
	1995 OK CR 80, 911 P.2d 286,	OMALZA v. STATE	Cited
	1996 OK CR 25, 919 P.2d 1120,	SALAZAR v. STATE	Discussed
	2001 OK CR 13, 28 P.3d 579, 72 OBJ 1819,	ABSHIER v. STATE	Cited
	2002 OK CR 30, 53 P.3d 418,	LOCKETT v. STATE	Cited
	2006 OK CR 12, 133 P.3d 312,	MYERS v. STATE	Cited
	2007 OK CR 13, 157 P.3d 139,	EVANS v. STATE	Cited
	2007 OK CR 34, 168 P.3d 185,	MALONE v. STATE	Cited
	2007 OK CR 42, 173 P.3d 81,	BALL v. STATE	Discussed
	2011 OK CR 14, 252 P.3d 259,	WEBSTER v. STATE	Cited
	2013 OK CR 8, 303 P.3d 291,	DAY v. STATE	Discussed
	2015 OK CR 14, 360 P.3d 1203,	BOSSE v. STATE	Cited
	2016 OK CR 4, 370 P.3d 828,	LEWALLEN v. STATE	Cited
	2016 OK CR 14, 387 P.3d 906,	CRIPPS v. STATE	Discussed at Length
	2017 OK CR 10, 400 P.3d 834,	BOSSE v. STATE	Cited
	2018 OK CR 19, 422 P.3d 788,	BRAMLETT v. STATE	Discussed
	2018 OK CR 25, 425 P.3d 753,	SPRUILL v. STATE	Cited
	2020 OK CR 2, 457 P.3d 1093,	STATE v. HODGES	Cited
	2020 OK CR 15, 471 P.3d 760,	STATE v. CARDENAS-MORENO	Cited
	2020 OK CR 22, 478 P.3d 462,	DAVISON v. STATE	Cited
	1999 OK CR 49, 998 P.2d 611,	Fairchild v. State	Cited
	2022 OK CR 15, 516 P.3d 699,	OLIVER v. STATE	Cited
	2000 OK CR 20, 13 P.3d 489, 71 OBJ 2675,	Harris v. State	Discussed
	2026 OK CR 17,	KETCHUM v. STATE OF OKLAHOMA	Discussed at Length
	1982 OK CR 11, 640 P.2d 971,	KENNEDY v. STATE	Cited
	1982 OK CR 89, 656 P.2d 277,	SMITH v. STATE	Discussed
	1997 OK CR 15, 935 P.2d 338,	Bryan v. State	Cited
	1997 OK CR 78, 950 P.2d 839, 69 OBJ 87,	Slaughter v. State	Discussed
	1998 OK CR 40, 962 P.2d 3, 69 OBJ 2657,	Torres v. State	Cited
	1998 OK CR 75, 989 P.2d 901, 70 OBJ 141,	Littlejohn v. State	Cited
	1999 OK CR 22, 989 P.2d 960, 70 OBJ 1578,	Washington v. State	Cited
	1985 OK CR 105, 707 P.2d 35,	ROUBIDEAUX v. STATE	Cited
	2000 OK CR 14, 8 P.3d 883, 71 OBJ 2063,	Gilson v. State	Cited
	1987 OK CR 94, 737 P.2d 1206,	SMITH v. STATE	Cited
	1987 OK CR 173, 741 P.2d 884,	MARR v. STATE	Discussed
Oklahoma Court of Civil Appeals Cases
	Cite	Name	Level
	2000 OK CIV APP 130, 15 P.3d 8, 71 OBJ 3296,	IN THE MATTER OF B.C.	Cited
	1994 OK CIV APP 47, 876 P.2d 738, 65 OBJ 2173,	Drake v. Wal-Mart, Inc.	Cited
	2002 OK CIV APP 83, 55 P.3d 455,	HURLBUT v. MORROW	Cited
	1995 OK CIV APP 123, 914 P.2d 1060, 67 OBJ 1366,	Warner v. Hillcrest Medical Center	Cited
	2004 OK CIV APP 53, 93 P.3d 51,	TWYMAN v. THE GHK CORP.	Cited
	2005 OK CIV APP 31, 114 P.3d 468,	CLINE v. DAIMLERCHRYSLER COMPANY	Cited
	2006 OK CIV APP 118, 146 P.3d 833,	THE ESTATE OF KING v. WAGONER COUNTY BOARD OF COUNTY COMMISSIONERS	Cited
	2009 OK CIV APP 57, 215 P.3d 835,	C-P INTEGRATED SERVICES, INC. v. MUSKOGEE CITY-COUNTY PORT AUTHORITY	Cited
	2009 OK CIV APP 95, 229 P.3d 565,	HOWARD v. ACI DISTRIBUTION SOUTH	Discussed
	2011 OK CIV APP 54, 255 P.3d 460,	LOUNDS v. STATE ex rel. DEPT. OF VETERANS AFFAIRS	Cited
	2012 OK CIV APP 99, 288 P.3d 259,	ISLE v. BRADY	Cited
	2014 OK CIV APP 37, 325 P.3d 4,	MOORE v. BLACKWELL	Discussed at Length
	2015 OK CIV APP 22, 347 P.3d 753,	CARNAHAN v. CHESAPEAKE OPERATING, INC.	Cited
	2017 OK CIV APP 18, 392 P.3d 715,	WINHAM v. REESE	Cited
	2019 OK CIV APP 71, 454 P.3d 761,	SANDERS v. COLE	Discussed
	2020 OK CIV APP 62, 479 P.3d 1013,	LINN v. OKLAHOMA FARM BUREAU MUTUAL INSURANCE CO.	Cited
	2021 OK CIV APP 41, 502 P.3d 196,	ANDREW v. DEPANI-SPARKES	Discussed
	2024 OK CIV APP 5, 543 P.3d 1229,	ONDOBO v. INTEGRIS BAPTIST MEDICAL CENTER	Cited
	2026 OK CIV APP 18,	Sapulpa vs Gannett Co Inc	Cited
Oklahoma Supreme Court Cases
	Cite	Name	Level
	1988 OK 105, 765 P.2d 770, 59 OBJ 2541,	Woods v. Fruehauf Trailer Corp.	Cited
	1990 OK 66, 796 P.2d 276, 61 OBJ 1934,	Panama Processes, S.A. v. Cities Service Co.	Cited
	2003 OK 10, 65 P.3d 591,	CHRISTIAN v. GRAY	Discussed at Length
	2003 OK 75, 77 P.3d 1069,	HEFFRON v. DISTRICT COURT OF OKLAHOMA COUNTY	Discussed
	2006 OK 39, 143 P.3d 203,	GAINES v. COMANCHE COUNTY MEDICAL HOSPITAL	Discussed at Length
	2007 OK 6, 154 P.3d 1257,	SCRUGGS v. EDWARDS	Discussed
	1996 OK 109, 925 P.2d 546, 67 OBJ 2930,	Sharp v. 251st Street Landfill, Inc.	Discussed
	2009 OK 86, 222 P.3d 966,	COLLIER v. REESE	Cited
	1912 OK 848, 122 P. 1103,	NELSON v. WOOD	Cited
	2012 OK 5, 272 P.3d 705,	COVEL v. RODRIGUEZ	Discussed
	2016 OK 69, 376 P.3d 212,	NELSON v. ENID MEDICAL ASSOCIATES, INC.	Discussed at Length
	2020 OK 92, 480 P.3d 894,	SHAWAREB v. SSM HEALTH CARE OF OKLAHOMA	Discussed at Length
Title 12. Civil Procedure
	Cite	Name	Level
	12 O.S. 2701,	Opinion Testimony by Lay Witnesses	Cited

Citationizer: Table of Authority

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Cite	Name	Level
Oklahoma Session Laws - 2025
	Cite	Name	Level
	2025 O.S.L. 311, 2025 O.S.L. 311,	[SB 0453] - Civil actions	Cited
Title 12. Civil Procedure
	Cite	Name	Level
	12 O.S. 2702,	Testimony by Experts	Cited
	12 O.S. 2702,	Testimony by Experts	Cited