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The doctrines Wyoming courts name when they cite: mined from the sentence each citation lives in, keyed on the citing court, counted by distinct opinions. Entry by issue, not by case: pick one to see the cases on each side.
| # | Issue | Most-cited case | Opinions | Courts | Years | Last 5y |
|---|---|---|---|---|---|---|
| 1 | plain error | Hampton v. State | 483 | 1 | 1896–2026 | 64 |
| 2 | clear and unequivocal rule | Hampton v. State | 470 | 1 | 1977–2026 | 68 |
| 3 | abuse of discretion standard | Vaughn v. State | 264 | 1 | 1983–2026 | 23 |
| 4 | due process clause | Stanley v. Illinois | 182 | 1 | 1935–2026 | 25 |
| 5 | incident alleged error | Talley v. State | 144 | 1 | 1988–2026 | 32 |
| 6 | agency hearing | Worker's Compensation Claim of Dale v. S & S Builders, LLC | 130 | 1 | 1979–2026 | 12 |
| 7 | res judicata doctrine | Hamill v. State | 129 | 1 | 1936–2026 | 14 |
| 8 | affirmative defense | Gabriel R. Drennen v. The State of Wyoming | 128 | 1 | 1923–2026 | 18 |
| 9 | party claiming error | Bradley v. State | 128 | 1 | 1982–2026 | 8 |
| 10 | fundamental principle | Granzer v. State | 125 | 1 | 1892–2026 | 9 |
| 11 | contested case hearing | Worker's Compensation Claim of Dale v. S & S Builders, LLC | 109 | 1 | 1986–2026 | 19 |
| 12 | de novo standard | Piroschak v. Whelan | 95 | 1 | 1982–2026 | 17 |
| 13 | harmless error | Chapman v. California | 93 | 1 | 1971–2026 | 7 |
| 14 | arbitrary and capricious standard | Worker's Compensation Claim of Dale v. S & S Builders, LLC | 92 | 1 | 1989–2026 | 21 |
| 15 | Miranda warning | State v. Evans | 80 | 1 | 1976–2025 | 7 |
| 16 | hearsay rule | Hopkinson v. State | 71 | 2 | 1965–2025 | 9 |
| 17 | equal protection clause | Hoem v. State | 68 | 1 | 1943–2026 | 8 |
| 18 | double jeopardy clause | Blockburger v. United States | 67 | 1 | 1975–2024 | 4 |
| 19 | speedy trial violation | Barker v. Wingo | 62 | 1 | 1979–2023 | 5 |
| 20 | prejudicial error | Nelson v. State | 62 | 1 | 1939–2025 | 8 |
| 21 | American rule | Thorkildsen v. Belden | 59 | 1 | 1952–2026 | 7 |
| 22 | benchmark for judging any claim | Strickland v. Washington | 56 | 1 | 1986–2024 | 1 |
| 23 | Wyoming rule | In the Matter of the Guardianship and Conservatorship of William G. Bratton, Ward, Robert E. Bratton | 55 | 1 | 1963–2023 | 2 |
| 24 | warrant requirement | Peña v. State | 54 | 1 | 1982–2025 | 12 |
| 25 | sufficiency of the evidence claim | Jennings v. State | 54 | 1 | 1986–2026 | 7 |
| 26 | lesser included offense instruction | State v. Keffer | 52 | 1 | 1978–2024 | 4 |
| 27 | offered instruction | Bouwkamp v. State | 49 | 1 | 1930–2025 | 6 |
| 28 | state constitutional analysis | Vasquez v. State | 48 | 1 | 1991–2025 | 8 |
| 29 | core inquiry | Vaughn v. State | 47 | 1 | 1998–2026 | 12 |
| 30 | essential element claim | Century Ready-Mix Co. v. Campbell County School District | 47 | 1 | 1975–2026 | 1 |
| 31 | presence violation | Reavis v. Reavis | 47 | 1 | 1936–2025 | 5 |
| 32 | exclusionary rule | United States v. Leon | 45 | 1 | 1971–2024 | 3 |
| 33 | Fourth Amendment analysis | Whren v. United States | 45 | 1 | 1972–2025 | 7 |
| 34 | essential elements claim | Sherwin-Williams Co. v. Borchert | 44 | 1 | 1979–2020 | 0 |
| 35 | ease bar | Merchants National Bank v. Branson | 44 | 1 | 1894–2017 | 0 |
| 36 | second compensable injury rule | Carabajal v. State ex rel. Wyoming Workers' Safety & Compensation Division | 43 | 1 | 1995–2024 | 4 |
| 37 | Terry stop | Terry v. Ohio | 43 | 1 | 1992–2026 | 5 |
| 38 | parol evidence rule | Bushnell v. Elkins | 43 | 1 | 1926–2022 | 1 |
| 39 | invited error | Bromley v. State | 43 | 1 | 1977–2026 | 8 |
| 40 | Fifth Amendment privilege | Miranda v. Arizona | 42 | 1 | 1966–2025 | 6 |
| 41 | search for plain error | Hornecker v. State | 42 | 1 | 1993–2024 | 5 |
| 42 | confrontation clause | Crawford v. Washington | 40 | 1 | 1972–2026 | 2 |
| 43 | preponderance of the evidence standard | In the Interest of Hp | 38 | 1 | 1979–2026 | 10 |
| 44 | Barker factors | Barker v. Wingo | 38 | 1 | 1989–2023 | 4 |
| 45 | Strickland test | Strickland v. Washington | 36 | 1 | 1987–2025 | 7 |
| 46 | scrutiny standard | Washakie County School District Number One v. Herschler | 36 | 1 | 1985–2026 | 7 |
| 47 | finding of plain error | Dennis Karl Klingbeil v. The State of Wyoming | 35 | 1 | 1984–2026 | 21 |
| 48 | mootness doctrine | OPERATION SAVE AMERICA v. City of Jackson | 35 | 1 | 1985–2026 | 4 |
| 49 | ineffective assistance of counsel claim | Strickland v. Washington | 34 | 1 | 1987–2025 | 9 |
| 50 | Brady violation | United States v. Bagley | 33 | 1 | 1977–2025 | 2 |
| 51 | rule of prejudicial error | Worker's Compensation Claim of Dale v. S & S Builders, LLC | 33 | 1 | 1982–2024 | 3 |
| 52 | statutory elements test | State v. Keffer | 33 | 1 | 1992–2022 | 2 |
| 53 | promissory estoppel doctrine | Loghry v. Unicover Corp. | 33 | 1 | 1978–2024 | 1 |
| 54 | thorough research analysis | Brimmer v. Thomson | 33 | 1 | 1974–2025 | 3 |
| 55 | stare decisis doctrine | Borns Ex Rel. Gannon v. Voss | 32 | 1 | 1976–2025 | 5 |
| 56 | change of plea hearing | Ford v. State | 32 | 1 | 1996–2026 | 12 |
| 57 | Mother brief | Maher v. Maher | 32 | 1 | 2003–2026 | 11 |
| 58 | collateral estoppel doctrine | Slavens v. Board of County Commissioners | 31 | 1 | 1984–2020 | 0 |
| 59 | Blockburger test | Blockburger v. United States | 30 | 1 | 1987–2023 | 1 |
| 60 | criminal offense is fundamental error | Mueller v. State | 30 | 1 | 1993–2022 | 1 |
| 61 | face error | Warner v. State | 30 | 1 | 1925–2026 | 4 |
| 62 | cumulative error | McClelland v. State | 30 | 1 | 1991–2026 | 8 |
| 63 | Gleason analysis | Gleason v. State | 30 | 1 | 2006–2026 | 12 |
| 64 | ineffective assistance claim | Wall v. State | 30 | 1 | 1988–2026 | 11 |
| 65 | standing doctrine | Schulthess v. Carollo | 30 | 1 | 1986–2025 | 3 |
| 66 | Father motion | Montoya v. Navarette-Montoya | 30 | 1 | 2000–2026 | 9 |
| 67 | difficult bar | Steven Jacob Mitchell v. The State of Wyoming | 29 | 1 | 2003–2026 | 15 |
| 68 | policy factors | Gates v. Richardson | 29 | 1 | 1978–2026 | 4 |
| 69 | qualified immunity | Harlow v. Fitzgerald | 29 | 1 | 1938–2025 | 4 |
| 70 | confusing or misleading instruction | Mueller v. State | 28 | 1 | 1995–2022 | 1 |
| 71 | separation of powers doctrine | Billis v. State | 28 | 1 | 1978–2024 | 1 |
| 72 | law of the case doctrine | Triton Coal Co. v. Husman, Inc. | 28 | 1 | 1986–2026 | 4 |
| 73 | adverse possession claim | White v. Wheeler | 27 | 1 | 1981–2025 | 7 |
| 74 | district court conducts hearing | Wilson v. State | 27 | 1 | 1994–2008 | 0 |
| 75 | oft-repeated rule | Harvey v. State | 27 | 1 | 1974–2012 | 0 |
| 76 | circumstances test | Bonsness v. State | 27 | 1 | 1934–2026 | 4 |
| 77 | specified standard | Valance v. VI-Doug, Inc. | 26 | 1 | 1985–2024 | 6 |
| 78 | proceedings error | Syndicate Improvement Co. v. Bradley | 26 | 1 | 1880–2006 | 0 |
| 79 | record clearly shows error | Compton v. State | 25 | 1 | 1997–2013 | 0 |
| 80 | sovereign immunity | Worthington v. State | 25 | 1 | 1959–2025 | 4 |
| 81 | adverse claim | Davis v. Chadwick | 25 | 1 | 1895–2025 | 6 |
| 82 | employer against claim | Lindbloom v. Teton International | 25 | 1 | 1989–2024 | 1 |
| 83 | generally accepted rule | Skuse v. State | 25 | 1 | 1903–2026 | 1 |
| 84 | seven factors | Frame v. State | 24 | 1 | 1998–2025 | 3 |
| 85 | good faith exception | Kerper v. Kerper | 24 | 1 | 1984–2026 | 3 |
| 86 | lodestar test | UNC Teton Exploration Drilling, Inc. v. Peyton | 24 | 1 | 1989–2024 | 5 |
| 87 | corollary rule | In Re Byam's Estate | 23 | 1 | 1968–2022 | 1 |
| 88 | Daubert analysis | Bunting v. Jamieson | 23 | 1 | 1999–2025 | 4 |
| 89 | defendant to overcome presumption | Dickeson v. State | 23 | 1 | 1993–2011 | 0 |
| 90 | per se rule | Dudley v. State | 23 | 1 | 1978–2025 | 4 |
| 91 | wide variety factors | Mehring v. State | 23 | 1 | 1988–2026 | 2 |
| 92 | claim of cumulative error | Young v. State | 22 | 1 | 1990–2020 | 0 |
| 93 | constitutional speedy trial claim | Barker v. Wingo | 22 | 1 | 1989–2023 | 3 |
| 94 | odd-lot doctrine | Schepanovich v. United States Steel Corp. | 22 | 1 | 1983–2023 | 5 |
| 95 | reasonable doubt standard | Chapman v. California | 22 | 1 | 1974–2025 | 1 |
| 96 | has recognized principle | Stoll v. Nagle | 21 | 1 | 1943–2026 | 1 |
| 97 | incident urged error | Causey v. State | 21 | 1 | 2010–2025 | 7 |
| 98 | liquidated claim | O'S Gold Seed Co. v. United Agri-Products Financial Services, Inc. | 21 | 1 | 1976–2025 | 3 |
| 99 | unequivocal rule | Jeremiah D. Leach v. The State of Wyoming | 21 | 1 | 1981–2023 | 1 |
| 100 | first prong of plain error | Jorge Omero Mendoza v. The State of Wyoming | 21 | 1 | 2010–2023 | 11 |
| 101 | interests analysis | Paden v. Paden | 21 | 1 | 1990–2026 | 7 |
| 102 | Brimmer test | William F. West Ranch, LLC v. Tyrrell | 20 | 1 | 2001–2025 | 8 |
| 103 | permanency hearing | KC v. State | 20 | 1 | 2010–2026 | 12 |
| 104 | tangible interest requirement | Schulthess v. Carollo | 20 | 1 | 1992–2020 | 0 |
| 105 | wide range factors | Joreski v. State | 20 | 1 | 1984–2022 | 1 |
| 106 | burden of proving plain error | In the Interest of: DT and NT, Minor Children.<br /> ST v. State | 19 | 1 | 2007–2026 | 7 |
| 107 | laches doctrine | Moncrief v. Sohio Petroleum Co. | 19 | 1 | 1939–2025 | 3 |
| 108 | party urging doctrine | Loghry v. Unicover Corp. | 19 | 1 | 1989–2012 | 0 |
| 109 | probable cause hearing | Connor Timothy Corrigan Phippen v. The State of Wyoming | 19 | 1 | 1976–2025 | 4 |
| 110 | probation revocation hearing | Badura v. State | 19 | 1 | 1985–2026 | 4 |
| 111 | conducted hearing | Kunselman v. State | 18 | 1 | 2018–2026 | 12 |
| 112 | equitable estoppel doctrine | Archuleta v. City of Rawlins | 18 | 1 | 1891–2025 | 2 |
| 113 | known right privilege | Johnson v. Zerbst | 18 | 1 | 1975–2023 | 1 |
| 114 | plain view exception | Coolidge v. New Hampshire | 18 | 1 | 1979–2019 | 0 |
| 115 | rational basis test | Greenwalt v. Ram Restaurant Corp. of Wyoming | 18 | 1 | 1982–2026 | 4 |
| 116 | self-defense instruction | Young v. State | 18 | 1 | 1973–2026 | 3 |
| 117 | uniform rule | Anderson v. Wyoming Development Co. | 18 | 1 | 1916–2006 | 0 |
| 118 | comprehensive analysis | United States v. Kenneth R. Chapman | 17 | 1 | 1957–2016 | 0 |
| 119 | dual inquiry | United States v. Hensley | 17 | 1 | 1974–2018 | 0 |
| 120 | exhaustion doctrine | People v. Fremont Energy Corp. | 17 | 1 | 1982–2025 | 3 |
| 121 | federal constitutional error | Chapman v. California | 17 | 1 | 1977–2019 | 0 |
| 122 | witness privilege | Brady v. Maryland | 17 | 1 | 1895–2023 | 1 |
| 123 | reasons rule | Gray v. Havemeyer | 17 | 1 | 1916–2020 | 0 |
| 124 | conviction bar | Spagner v. State | 16 | 1 | 1959–2023 | 2 |
| 125 | governmental immunity and is cognizant doctrine | Oroz v. Board of County Com'rs of Carbon County | 16 | 1 | 1982–2026 | 4 |
| 126 | justification rule | Leeper v. State | 16 | 1 | 1981–2024 | 2 |
| 127 | purposes bar | Board of Professional Responsibility, Wyoming State Bar | 16 | 1 | 1975–2023 | 5 |
| 128 | third-party claim | Pan American Petroleum Corp. v. Maddux Well Service | 16 | 1 | 1985–2026 | 2 |
| 129 | trial-type hearing | Granzer v. State | 16 | 1 | 1972–2018 | 0 |
| 130 | Alford plea | North Carolina v. Alford | 16 | 1 | 1992–2026 | 6 |
| 131 | jurisprudential rule | Lo Sasso v. Braun | 16 | 1 | 1995–2025 | 3 |
| 132 | propriety instruction | Michael Scott Hopkins v. County of Laramie, Wyoming | 16 | 1 | 1902–2024 | 1 |
| 133 | unjust enrichment claim | Redland v. Redland | 16 | 1 | 1943–2026 | 5 |
| 134 | acquittal or conviction bar | Spagner v. State | 15 | 1 | 1979–2022 | 1 |
| 135 | careful analysis | Osborn v. State | 15 | 1 | 1935–2013 | 0 |
| 136 | of review standard | Taul v. State | 15 | 1 | 1992–2016 | 0 |
| 137 | elementary principle | Marsh v. Aljoe | 15 | 1 | 1905–2014 | 0 |
| 138 | specifications error | Samuelson v. Tribune Publishing Co. | 15 | 1 | 1921–1956 | 0 |
| 139 | section 14-2-309(a) s parental rights | Dunlap v. State (In re Bad) | 15 | 1 | 1983–2026 | 9 |
| 140 | absence of fundamental error | Jahnke v. State | 14 | 1 | 1984–2019 | 0 |
| 141 | almost universal rule | Jackson Et Ux. v. Spellman | 14 | 1 | 1941–2012 | 0 |
| 142 | Anders brief | Anders v. California | 14 | 1 | 1989–2023 | 4 |
| 143 | attorney-client privilege | Teniente v. State | 14 | 1 | 1985–2022 | 2 |
| 144 | blood alcohol test | Schmerber v. California | 14 | 1 | 1968–2022 | 1 |
| 145 | Chapman analysis | Chapman v. California | 14 | 1 | 1981–2015 | 0 |
| 146 | discussion rule | Cls v. Clj | 14 | 1 | 1948–1999 | 0 |
| 147 | felony-murder rule | Bouwkamp v. State | 14 | 1 | 1978–2025 | 1 |
| 148 | individualized sentencing hearing | Wyatt L. Bear Cloud v. The State of Wyoming | 14 | 1 | 2013–2026 | 3 |
| 149 | legitimate claim | Board of Regents of State Colleges v. Roth | 14 | 1 | 1983–2025 | 3 |
| 150 | party proves violation | Byron Nelson Griggs v. State | 14 | 1 | 2006–2025 | 2 |
Top 150 by distinct citing opinions.