The doctrines Oregon 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 | Ailes v. Portland Meadows, Inc. | 670 | 2 | 1860–2026 | 414 |
| 2 | warrant requirement | State v. Davis | 610 | 5 | 1899–2026 | 109 |
| 3 | gravity error | Ailes v. Portland Meadows, Inc. | 500 | 7 | 1991–2026 | 176 |
| 4 | affirmative defense | State Ex Rel. Mikkelsen v. Hill | 441 | 3 | 1882–2026 | 89 |
| 5 | Miranda warning | State v. Roble-Baker | 408 | 3 | 1968–2026 | 88 |
| 6 | due process clause | International Shoe Co. v. Washington | 316 | 3 | 1926–2026 | 59 |
| 7 | hearsay rule | State v. Cook | 234 | 2 | 1929–2026 | 49 |
| 8 | policies behind the general rule | Ailes v. Portland Meadows, Inc. | 203 | 5 | 1991–2026 | 53 |
| 9 | fundamental principle | State v. Manrique | 185 | 3 | 1881–2026 | 21 |
| 10 | harmless error | State v. Davis | 182 | 4 | 1917–2026 | 82 |
| 11 | exclusionary rule | State v. Davis | 171 | 2 | 1929–2026 | 16 |
| 12 | first level analysis | Portland General Electric Co. v. Bureau of Labor & Industries | 167 | 3 | 1993–2019 | 0 |
| 13 | second assignment error | State v. Ortiz | 127 | 2 | 1927–2026 | 44 |
| 14 | wording rule | Don't Waste Oregon Committee v. Energy Facility Siting Council | 125 | 3 | 1895–2026 | 39 |
| 15 | federal constitutional error | Sterling v. Cupp | 123 | 3 | 1967–2026 | 36 |
| 16 | text rule | Portland General Electric Co. v. Bureau of Labor & Industries | 121 | 3 | 1932–2026 | 43 |
| 17 | opportunity to correct any error | Ailes v. Portland Meadows, Inc. | 117 | 4 | 1916–2026 | 29 |
| 18 | Oregon rule | State v. Walton | 117 | 4 | 1930–2026 | 18 |
| 19 | facts constituting error | Ailes v. Portland Meadows, Inc. | 116 | 3 | 1891–2026 | 31 |
| 20 | permanency hearing | State ex rel. Juvenile Department v. Williams | 115 | 6 | 2002–2026 | 58 |
| 21 | chance to consider rule | Peeples v. Lampert | 113 | 4 | 2008–2026 | 64 |
| 22 | fact-specific inquiry | State v. Holmes | 106 | 3 | 1991–2026 | 25 |
| 23 | aggravation claim | Bauman v. State Accident Insurance Fund Corp. | 102 | 2 | 1975–2021 | 1 |
| 24 | nonunanimous jury instruction | State v. Flores Ramos | 102 | 2 | 2010–2026 | 93 |
| 25 | automobile exception | State v. Brown | 100 | 2 | 1930–2026 | 16 |
| 26 | clear and convincing evidence standard | State v. S. A. R. | 97 | 2 | 1981–2026 | 51 |
| 27 | Fifth Amendment privilege | Miranda v. Arizona | 97 | 3 | 1968–2026 | 10 |
| 28 | equal protection clause | Plummer v. Donald M. Drake Co. | 95 | 3 | 1947–2025 | 14 |
| 29 | per se rule | Missouri v. McNeely | 93 | 2 | 1979–2025 | 12 |
| 30 | record to identify error | Ailes v. Portland Meadows, Inc. | 90 | 3 | 1991–2026 | 27 |
| 31 | Fourth Amendment analysis | Brown v. Illinois | 88 | 2 | 1970–2026 | 13 |
| 32 | officer-safety exception | State v. Bates | 88 | 2 | 1992–2025 | 21 |
| 33 | parol evidence rule | Hatley v. Stafford | 88 | 3 | 1915–2021 | 2 |
| 34 | structural error | State v. Flores Ramos | 86 | 2 | 1992–2024 | 70 |
| 35 | commitment hearing | State v. Miller | 84 | 2 | 1971–2026 | 39 |
| 36 | historical exception | State v. Robertson | 83 | 3 | 1945–2025 | 11 |
| 37 | known right privilege | State v. Meyrick | 83 | 2 | 1968–2026 | 19 |
| 38 | question of plain error | State v. Ardizzone | 82 | 1 | 2012–2026 | 71 |
| 39 | error to be plain error | State v. Vanornum | 81 | 2 | 2013–2026 | 74 |
| 40 | probable cause requirement | State v. Anspach | 81 | 2 | 1976–2026 | 8 |
| 41 | last injurious exposure rule | Matter of Compensation of Bracke | 79 | 2 | 1975–2020 | 0 |
| 42 | possible influence error | State v. Davis | 79 | 2 | 2003–2026 | 22 |
| 43 | vagueness challenge | State v. Graves | 75 | 2 | 1976–2025 | 10 |
| 44 | confrontation clause | Crawford v. Washington | 74 | 2 | 1954–2025 | 15 |
| 45 | contested case hearing | Northwest Environmental Defense Center v. Mid-Willamette Air Pollution Authority | 72 | 3 | 1976–2025 | 9 |
| 46 | ease bar | State v. Inman | 71 | 2 | 1894–2025 | 3 |
| 47 | kind claim | Oberg v. Honda Motor Co. | 71 | 2 | 1908–2024 | 8 |
| 48 | reasonable doubt standard | Chapman v. California | 70 | 2 | 1894–2026 | 26 |
| 49 | invited error | State v. Kammeyer | 69 | 3 | 1932–2026 | 35 |
| 50 | interpretation rule | Don't Waste Oregon Committee v. Energy Facility Siting Council | 67 | 3 | 1893–2026 | 10 |
| 51 | proportionality analysis | State v. Rodriguez/Buck | 67 | 2 | 1980–2026 | 23 |
| 52 | compensability claim | Bauman v. State Accident Insurance Fund Corp. | 66 | 2 | 1970–2023 | 5 |
| 53 | gross deviation standard | State v. Shedrick | 66 | 2 | 1975–2026 | 35 |
| 54 | policies underlying rule | State v. Parkins | 66 | 2 | 1977–2026 | 25 |
| 55 | agency rule | Gordon v. Board of Parole & Post-Prison Supervision | 65 | 3 | 1932–2025 | 8 |
| 56 | double jeopardy clause | State v. Boyd | 65 | 2 | 1969–2025 | 13 |
| 57 | facts that comprise error | State v. Brown | 65 | 4 | 1994–2026 | 6 |
| 58 | emergency instruction | State v. Follett | 64 | 3 | 1899–2025 | 5 |
| 59 | merger analysis | State v. Alvarez | 64 | 4 | 1977–2026 | 15 |
| 60 | attorney-client privilege | State v. Jancsek | 63 | 3 | 1974–2026 | 21 |
| 61 | disputable presumption | Flint v. Phipps | 63 | 3 | 1897–2016 | 0 |
| 62 | rigorous standard | State v. Civil | 62 | 3 | 1928–2026 | 30 |
| 63 | emergency aid exception | State v. Baker | 61 | 2 | 1988–2026 | 12 |
| 64 | Sixth Amendment claim | Strickland v. Washington | 61 | 3 | 1974–2026 | 12 |
| 65 | ex post facto clause | State v. Wille | 60 | 3 | 1980–2026 | 7 |
| 66 | interpretive principle | State v. Cloutier | 60 | 2 | 1982–2025 | 19 |
| 67 | state constitutional claim | State v. Kennedy | 60 | 3 | 1983–2025 | 12 |
| 68 | PGE analysis | Portland General Electric Co. v. Bureau of Labor & Industries | 59 | 2 | 1998–2026 | 2 |
| 69 | adverse claim | Woods v. Hart | 57 | 2 | 1892–2025 | 8 |
| 70 | HGN test | State v. O'Key | 57 | 2 | 1987–2026 | 18 |
| 71 | home rule | City of La Grande v. Public Employes Retirement Board | 57 | 3 | 1912–2026 | 8 |
| 72 | law of the case doctrine | State v. Pratt | 57 | 3 | 1924–2026 | 23 |
| 73 | face rule | AFSCME Local 2623 v. Department of Corrections | 56 | 3 | 1918–2025 | 13 |
| 74 | occupational disease claim | Weller v. Union Carbide Corp. | 56 | 2 | 1975–2025 | 6 |
| 75 | estoppel doctrine | Johnson v. State Tax Commission | 54 | 3 | 1897–2026 | 5 |
| 76 | third assignment error | 54 | 2 | 1946–2026 | 20 | |
| 77 | departure factors | State v. Wilson | 53 | 2 | 1887–2022 | 2 |
| 78 | particularity requirement | State v. Mansor | 53 | 2 | 1979–2026 | 30 |
| 79 | reasonable suspicion standard | State v. Maciel-Figueroa | 53 | 2 | 1978–2026 | 21 |
| 80 | taxpayer have an immediate claim | Kaady v. Department of Revenue | 53 | 1 | 2008–2021 | 1 |
| 81 | course rule | Don't Waste Oregon Committee v. Energy Facility Siting Council | 52 | 2 | 1970–2025 | 24 |
| 82 | probation revocation hearing | State v. Baxley | 52 | 2 | 1971–2025 | 16 |
| 83 | reasons rule | State Forester v. Umpqua River Navigation Co. | 51 | 2 | 1884–2026 | 3 |
| 84 | uniform instruction | State v. Worsham | 51 | 3 | 1890–2026 | 17 |
| 85 | abuse of discretion standard | Adc Kentrox v. Dept. of Rev. | 50 | 3 | 1996–2026 | 18 |
| 86 | parole violation | State v. Hampton | 50 | 2 | 1974–2026 | 13 |
| 87 | starting point analysis | Portland General Electric Co. v. Bureau of Labor & Industries | 50 | 3 | 1971–2026 | 11 |
| 88 | began analysis | Scovill v. City of Astoria | 49 | 2 | 1982–2025 | 8 |
| 89 | commits reversible error | State v. Priester | 49 | 1 | 2014–2026 | 47 |
| 90 | consent exception | State v. Paulson | 49 | 2 | 1886–2026 | 7 |
| 91 | cross-assignment error | Artman v. Ray | 49 | 2 | 1987–2025 | 13 |
| 92 | outcome standard | Green v. Franke | 49 | 4 | 1971–2025 | 12 |
| 93 | speedy trial claim | Barker v. Wingo | 49 | 2 | 1970–2026 | 11 |
| 94 | discretionary immunity | Pelett v. Department of Revenue | 48 | 3 | 1980–2025 | 10 |
| 95 | concluded error | Cain v. Rijken | 47 | 3 | 1966–2025 | 6 |
| 96 | explained test | State v. Johns | 47 | 4 | 1977–2024 | 10 |
| 97 | chances doctrine | State v. Johns | 46 | 4 | 1980–2023 | 10 |
| 98 | escape clause | Bartz v. State of Oregon | 46 | 3 | 1968–2026 | 21 |
| 99 | local rule | City of La Grande v. Public Employes Retirement Board | 46 | 2 | 1926–2026 | 4 |
| 100 | method analysis | Portland General Electric Co. v. Bureau of Labor & Industries | 46 | 2 | 1962–2025 | 8 |
| 101 | Brown test | State v. O'Key | 45 | 2 | 1971–2025 | 8 |
| 102 | inevitable discovery doctrine | State v. Miller | 45 | 2 | 1976–2025 | 11 |
| 103 | issue preclusion doctrine | Nelson v. Emerald People's Utility District | 45 | 3 | 1990–2025 | 4 |
| 104 | plain view doctrine | Coolidge v. New Hampshire | 45 | 2 | 1972–2026 | 16 |
| 105 | potential rate error | State v. Brown | 45 | 2 | 1987–2025 | 6 |
| 106 | disputed claim | Fazzolari v. Portland School District No. 1J | 44 | 3 | 1892–2025 | 7 |
| 107 | Johns test | State v. Johns | 44 | 4 | 1986–2023 | 2 |
| 108 | party requesting instruction | State v. Payne | 44 | 2 | 1986–2026 | 15 |
| 109 | qualified privilege | Walsh v. Consolidated Freightways, Inc. | 44 | 2 | 1919–2026 | 6 |
| 110 | second step analysis | In Re the Marriage of Boldt | 44 | 3 | 1985–2026 | 13 |
| 111 | third-party claim | Tomlinson v. Metropolitan Pediatrics, LLC | 44 | 3 | 1970–2024 | 10 |
| 112 | claimant claim | Bauman v. State Accident Insurance Fund Corp. | 43 | 2 | 1927–2025 | 2 |
| 113 | common-law negligence claim | Fazzolari v. Portland School District No. 1J | 43 | 2 | 1985–2025 | 18 |
| 114 | likelihood error | State v. Horton | 43 | 2 | 1978–2026 | 33 |
| 115 | sovereign immunity | Hale v. Port of Portland | 43 | 3 | 1873–2026 | 5 |
| 116 | respondeat superior doctrine | Chesterman v. Barmon | 42 | 2 | 1902–2017 | 0 |
| 117 | exigent circumstances exception | State v. Meharry | 41 | 2 | 1972–2021 | 4 |
| 118 | influence of intoxicants violation | State v. Guzman/Heckler | 41 | 3 | 1980–2025 | 5 |
| 119 | source warning | Miranda v. Arizona | 41 | 2 | 1979–2025 | 10 |
| 120 | assigned error | Ailes v. Portland Meadows, Inc. | 40 | 2 | 1876–2025 | 8 |
| 121 | blood alcohol test | South Dakota v. Neville | 40 | 2 | 1973–2026 | 4 |
| 122 | claim preclusion doctrine | Drews v. EBI Companies | 40 | 3 | 1990–2024 | 9 |
| 123 | good faith error | Best v. United States National Bank | 40 | 2 | 1956–2026 | 4 |
| 124 | knowing waiver | Miller v. Gladden | 40 | 2 | 1968–2025 | 10 |
| 125 | Miranda-like warning | State v. Smith | 40 | 2 | 1990–2026 | 4 |
| 126 | nonexclusive list factors | Ailes v. Portland Meadows, Inc. | 40 | 2 | 1997–2026 | 19 |
| 127 | Restatement rule | Brewer v. Erwin | 40 | 2 | 1960–2020 | 0 |
| 128 | statute of limitations defense | Palmer v. State of Oregon | 40 | 2 | 1917–2025 | 6 |
| 129 | substance rule | Hernandez v. Barbo MacHinery Co. | 40 | 3 | 1928–2026 | 8 |
| 130 | wrongful discharge claim | Holien v. Sears, Roebuck and Co. | 40 | 2 | 1984–2025 | 6 |
| 131 | alibi defense | Lichau v. Baldwin | 39 | 2 | 1926–2026 | 9 |
| 132 | error error | State v. Brown | 39 | 3 | 1963–2026 | 10 |
| 133 | essence clause | City of Oregon v. Mill-Maple Properties, Inc. | 39 | 2 | 1899–2022 | 1 |
| 134 | evidential error | State v. Davis | 39 | 2 | 1948–2025 | 5 |
| 135 | separation of powers doctrine | Rooney v. Kulongoski | 39 | 3 | 1962–2023 | 5 |
| 136 | time of the termination hearing | State Ex Rel. State Office for Services to Children & Families v. Stillman | 39 | 2 | 1997–2026 | 3 |
| 137 | wage claim | Belknap v. US BANK NAT. ASS'N | 39 | 2 | 1955–2024 | 5 |
| 138 | exploitation analysis | State v. Hall | 38 | 2 | 1993–2025 | 7 |
| 139 | individual claim | Cooper v. Eugene School District No. 4J | 38 | 5 | 1938–2022 | 2 |
| 140 | knowing and voluntary waiver | State v. Vondehn | 38 | 2 | 1978–2026 | 13 |
| 141 | preponderance standard | Reed v. Department of Revenue | 38 | 3 | 1960–2024 | 5 |
| 142 | Brady violation | Brady v. Maryland | 37 | 3 | 1974–2026 | 19 |
| 143 | categorical rule | State v. Williams | 37 | 4 | 1994–2026 | 17 |
| 144 | choice of evils defense | State v. Seamons | 37 | 2 | 1977–2026 | 9 |
| 145 | findings hearing | Hannan v. Good Samaritan Hospital | 37 | 2 | 1954–2025 | 8 |
| 146 | omnibus hearing | State v. Lewis | 37 | 2 | 1912–2026 | 4 |
| 147 | purposes rule | State v. Parkins | 37 | 2 | 1974–2026 | 6 |
| 148 | requisites of plain error | State v. Ardizzone | 37 | 1 | 2008–2026 | 24 |
| 149 | Church motion | Bogle v. State | 36 | 2 | 1896–2025 | 25 |
| 150 | civil commitment hearing | State v. A. M. | 36 | 2 | 1991–2026 | 27 |
Top 150 by distinct citing opinions.