Mapp v. Ohio’s Empirical Analysis
1961
Citation profile
2,706 federal appellate · 631 district · 9,166 state decisions
How this case has been cited
Cited by 15,017 later decisions (503 by the Supreme Court) — most recently March 2026 · most notably Miranda v. State of Arizona Vignera (1966), Ashcroft v. Iqbal (2009)
2,706 federal appellate · 631 district · 9,166 state decisions — followed in 50 states
Later decisions citing this case, by decade. The current decade is in progress, and our corpus holds fewer opinions from the most recent years, so the latest bars are undercounted — not a real decline.
Relationships
Relies on Monroe v. Pape · Jones v. United States · Griffin v. People of the State of Illinois · Boyd v. United States
Cited together with Linkletter v. Walker · Wolf v. People of the State of Colorado · Weeks v. United States · Miranda v. State of Arizona Vignera · Gideon v. Wainwright
Most-quoted passages
The sentences later courts lift from this opinion, ranked by how many decisions quote each — the parts of the opinion doing the work. These counts are smaller than the citation total above because most of the 15,017 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.”
261 later decisions quote this exact passage · from the dissent“all evidence obtained by searches and seizures in violation of the Constitution is, by that same authority, inadmissible in a state court.”
196 later decisions quote this exact passage · from the majority“As is always the case, however, state procedural requirements governing assertion and pursuance of direct and collateral constitutional challenges to criminal prosecutions must be respected.”
16 later decisions quote this exact passage · from the dissent
How this case has been treated — in progress
Whether each later court followed, distinguished, criticized, or overruled this decision. The treatment classification (task #35) runs highest-cited cases first and lights up here as it reaches this one.