U.S. Supreme Court Section 1983 Cases
78 cases in the library
Supreme Court decisions bind every federal and state court. These are the cases that define Section 1983 itself: qualified immunity, Monell, probable cause, excessive force, and the pleading standard.
Cases, newest first
Barnes v. Felix
605 U.S. ___ (2025) · May 15, 2025
The Fifth Circuit's 'moment-of-threat' rule, which limited the excessive force inquiry to only the instant of the shooting, conflicts with the totality-of-the-circumstances analysis required by the Fourth Amendment; courts must consider the full sequence of events leading to the use of force.
Gonzalez v. Trevino
602 U.S. ___ (2024) · Jun 20, 2024
A plaintiff can use any objective evidence — not just strict comparator evidence — to show she was arrested when similarly situated individuals not engaged in the same protected speech had not been, thereby satisfying the narrow Nieves exception.
Dobbs v. Jackson Women's Health Organization
597 U.S. 215 (2022) · Jun 24, 2022
The Supreme Court overruled Roe and Casey, showing again that long-standing precedent can be reversed when a majority decides it was wrongly decided.
Vega v. Tekoh
597 U.S. 134 (2022) · Jun 23, 2022
A violation of Miranda's warning rules does not itself provide a basis for a Section 1983 damages claim.
Thompson v. Clark
596 U.S. 36 (2022) · Apr 4, 2022
To bring a Fourth Amendment malicious-prosecution claim under Section 1983, a plaintiff need only show that the criminal prosecution ended without a conviction; the plaintiff does not have to show that the termination affirmatively indicated innocence.
Taylor v. Riojas
592 U.S. 7 (2020) · Nov 2, 2020
No reasonable correctional officer could have concluded it was constitutionally permissible to confine an inmate in cells covered in human waste for six days — qualified immunity denied even without a prior case with identical facts.
Bostock v. Clayton County
590 U.S. 644 (2020) · Jun 15, 2020
When Congress writes a statute broadly, courts must apply the written words as enacted; firing someone for being gay or transgender is discrimination because of sex under Title VII.
Hernandez v. Mesa
589 U.S. 93 (2020) · Feb 25, 2020
The Court refused to extend Bivens to a cross-border shooting claim, leaving the family without a damages remedy against the federal officer.
McDonough v. Smith
588 U.S. 109 (2019) · Jun 20, 2019
A Section 1983 claim that fabricated evidence was used against the plaintiff in a criminal proceeding, in violation of due process, does not accrue until the criminal proceedings terminate in the plaintiff's favor.
Nieves v. Bartlett
587 U.S. 391 (2019) · May 28, 2019
The existence of probable cause generally defeats a First Amendment retaliatory arrest claim under § 1983, with a narrow exception for cases where the plaintiff shows that similarly situated individuals not engaged in protected speech were not arrested.
Ziglar v. Abbasi
582 U.S. 120 (2017) · Jun 19, 2017
The Court severely limited the Bivens implied damages remedy, holding that courts should not extend it to new contexts — and that post-9/11 detention policy claims present such a new context.
Mullenix v. Luna
577 U.S. 7 (2015) · Nov 9, 2015
Qualified immunity protects officers in the 'hazy border between excessive and acceptable force,' and courts must not define clearly established law at a high level of generality — especially in Fourth Amendment excessive-force cases.
Taylor v. Barkes
575 U.S. 822 (2015) · Jun 1, 2015
Officials were entitled to qualified immunity because no clearly established law required the specific suicide-screening procedures the plaintiff claimed the Constitution demanded.
Johnson v. City of Shelby
574 U.S. 10 (2014) · Nov 10, 2014
A § 1983 complaint need not invoke § 1983 by name — federal pleading rules require only a short and plain statement of the claim showing entitlement to relief, not citation to specific statutes.
Tolan v. Cotton
572 U.S. 650 (2014) · May 5, 2014
Courts ruling on summary judgment must view the facts in the light most favorable to the nonmoving party — the Fifth Circuit erred by crediting the officer's version of disputed facts when denying an excessive force claim.
Kaley v. United States
571 U.S. 320 (2014) · Feb 25, 2014
A criminal defendant who has been indicted by a grand jury is not constitutionally entitled to challenge the grand jury's probable cause finding when seeking to vacate a pre-trial asset restraining order under 21 U.S.C. § 853(e)(1).
Ashcroft v. al-Kidd
563 U.S. 731 (2011) · May 31, 2011
The objectively reasonable arrest and detention of a material witness pursuant to a validly obtained warrant cannot be challenged as unconstitutional on the basis of allegations that the arresting authority had an improper motive.
Connick v. Thompson
563 U.S. 51 (2011) · Mar 29, 2011
A district attorney's office may not be held liable under § 1983 for failure to train prosecutors based on a single Brady violation — absent a pattern of similar violations, a single incident is generally insufficient to prove deliberate indifference.
Krupski v. Costa Crociere S.p.A.
560 U.S. 538 (2010) · Jun 7, 2010
Under Rule 15(c)(1)(C), whether an amended complaint naming a new defendant relates back depends on what the new defendant knew or should have known during the Rule 4(m) period, not on what the plaintiff knew or how long the plaintiff waited to amend.
Ashcroft v. Iqbal
556 U.S. 662 (2009) · May 18, 2009
A complaint must plead facts that make a claim plausible, not merely possible — conclusory allegations and legal labels are not enough.
Pearson v. Callahan
555 U.S. 223 (2009) · Jan 21, 2009
Courts deciding qualified immunity claims have discretion to skip the constitutional-violation question and resolve the case solely on the 'clearly established' prong.
Erickson v. Pardus
551 U.S. 89 (2007) · Jun 4, 2007
Rule 8(a)(2) requires only a short and plain statement of the claim, not specific facts, and a pro se complaint must be liberally construed and held to less stringent standards than a pleading drafted by a lawyer.
Bell Atlantic Corp. v. Twombly
550 U.S. 544 (2007) · May 21, 2007
A complaint must plead enough facts to state a claim that is plausible on its face — bare assertions and conclusory allegations are not enough to survive a motion to dismiss.
Scott v. Harris
550 U.S. 372 (2007) · Apr 30, 2007
When video evidence blatantly contradicts the plaintiff's version of events, courts need not adopt the plaintiff's account at summary judgment — and a police officer who rams a fleeing motorist's car to end a dangerous high-speed chase does not violate the Fourth Amendment.
Wallace v. Kato
549 U.S. 384 (2007) · Feb 21, 2007
A Section 1983 false-arrest or false-imprisonment claim accrues when the plaintiff is detained pursuant to legal process, such as arraignment, not when the criminal charges are later dismissed, and Heck v. Humphrey does not delay accrual based on a conviction that has not yet occurred.
Hartman v. Moore
547 U.S. 250 (2006) · Apr 26, 2006
A plaintiff alleging retaliatory prosecution in violation of the First Amendment must plead and prove that the underlying criminal charge was not supported by probable cause.
Jama v. Immigration and Customs Enforcement
543 U.S. 335 (2005) · Jan 12, 2005
When Congress includes an express requirement in some parts of a statute but not in another, courts should not lightly assume the missing requirement was silently meant to apply anyway.
Brosseau v. Haugen
543 U.S. 194 (2004) · Dec 13, 2004
A police officer who shot a fleeing suspect in the back as he attempted to drive away was entitled to qualified immunity because the relevant case law placed her conduct in the 'hazy border between excessive and acceptable force,' and existing precedent did not clearly establish that her actions violated the Fourth Amendment.
Devenpeck v. Alford
543 U.S. 146 (2004) · Dec 13, 2004
A warrantless arrest is reasonable under the Fourth Amendment if there is probable cause to believe that any crime has been or is being committed, regardless of whether that offense is 'closely related' to the offense the officer states at the time of arrest.
Hope v. Pelzer
536 U.S. 730 (2002) · Jun 27, 2002
A constitutional right can be 'clearly established' for qualified immunity purposes even without a prior case involving identical facts — the obvious cruelty of the conduct itself can provide fair warning.
Atwater v. City of Lago Vista
532 U.S. 318 (2001) · Apr 24, 2001
The Fourth Amendment does not forbid a warrantless custodial arrest for a minor criminal offense — even a misdemeanor punishable only by a fine — as long as the officer has probable cause.
Strickler v. Greene
527 U.S. 263 (1999) · Jun 17, 1999
A true Brady claim has three components: the evidence must be favorable to the accused, it must have been suppressed by the State, and the suppression must have been material in the sense that there is a reasonable probability of a different result.
County of Sacramento v. Lewis
523 U.S. 833 (1998) · May 26, 1998
A police officer does not violate substantive due process by causing death through deliberate or reckless indifference to life in a high-speed automobile chase aimed at apprehending a suspected offender; only a purpose to cause harm unrelated to legitimate law enforcement objectives violates the Fourteenth Amendment in such circumstances.
Board of the County Commissioners of Bryan County v. Brown
520 U.S. 397 (1997) · Apr 28, 1997
A municipality cannot be held liable under § 1983 for a single hiring decision unless the plaintiff demonstrates that adequate screening of the applicant's background would lead a reasonable policymaker to conclude that the plainly obvious consequence of hiring that applicant would be the deprivation of a third party's constitutional rights.
Whren v. United States
517 U.S. 806 (1996) · Jun 10, 1996
The temporary detention of a motorist upon probable cause to believe he has violated traffic laws does not violate the Fourth Amendment's prohibition against unreasonable seizures, even if a reasonable officer would not have stopped the motorist absent some additional law enforcement objective. Subjective intentions play no role in ordinary probable-cause Fourth Amendment analysis.
Kyles v. Whitley
514 U.S. 419 (1995) · Apr 19, 1995
Suppressed favorable evidence is material under Brady when, considered cumulatively, it undermines confidence in the verdict; the defendant need not show acquittal was more likely than not, and the prosecutor has a duty to learn of favorable evidence known to police acting on the government's behalf.
Heck v. Humphrey
512 U.S. 477 (1994) · Jun 24, 1994
A § 1983 claim for damages is barred if success on that claim would necessarily imply the invalidity of an existing criminal conviction — the conviction must first be reversed or invalidated.
Leatherman v. Tarrant County Narcotics Intelligence & Coordination Unit
507 U.S. 163 (1993) · Mar 3, 1993
Federal courts may not apply a heightened pleading standard to § 1983 claims alleging municipal liability — the ordinary notice pleading requirements of Federal Rule 8(a)(2) apply.
Farrar v. Hobby
506 U.S. 103 (1992) · Dec 14, 1992
A plaintiff who wins only nominal damages is a prevailing party under Section 1988, but the reasonable attorney-fee award in that situation may be little or nothing.
Wyatt v. Cole
504 U.S. 158 (1992) · Mar 23, 1992
Private parties who use a state replevin, garnishment, or attachment statute later found unconstitutional do not get qualified immunity in a § 1983 suit.
Pennsylvania v. Muniz
496 U.S. 582 (1990) · Jun 18, 1990
Routine booking questions do not constitute interrogation under Miranda, but a question designed to elicit a testimonial response revealing the suspect's mental state (such as asking the date of his sixth birthday) requires Miranda warnings.
Jett v. Dallas Independent School District
491 U.S. 701 (1989) · Jun 22, 1989
Section 1983 provides the exclusive federal damages remedy for violations of rights guaranteed by § 1981 when the claim is against a state actor, and a municipality cannot be held liable under respondeat superior for § 1981 violations.
Will v. Michigan Department of State Police
491 U.S. 58 (1989) · Jun 15, 1989
Neither a state nor its officials acting in their official capacity are 'persons' under § 1983 — meaning § 1983 cannot be used to sue states or state officials in their official capacity for money damages.
Graham v. Connor
490 U.S. 386 (1989) · May 15, 1989
All claims that law enforcement officers used excessive force during an arrest, investigatory stop, or other seizure of a free citizen must be analyzed under the Fourth Amendment's 'objective reasonableness' standard — not substantive due process.
City of Canton v. Harris
489 U.S. 378 (1989) · Feb 28, 1989
A municipality can be liable under § 1983 for failing to train its employees when the failure to train amounts to deliberate indifference to the constitutional rights of persons the employees encounter.
City of St. Louis v. Praprotnik
485 U.S. 112 (1988) · Mar 2, 1988
Identifying which officials have 'final policymaking authority' for Monell purposes is a question of state and local law to be decided by the court — not a question of fact for the jury — and merely going along with a subordinate's decisions does not constitute delegation of policymaking authority.
Anderson v. Creighton
483 U.S. 635 (1987) · Jun 25, 1987
Qualified immunity turns on whether a reasonable officer could have believed the conduct was lawful in light of clearly established law and the specific facts the officer faced.
City of Houston v. Hill
482 U.S. 451 (1987) · Jun 15, 1987
A municipal ordinance making it unlawful to interrupt a police officer in the performance of duty is substantially overbroad under the First Amendment because it criminalizes a significant amount of constitutionally protected speech and accords police unconstitutional enforcement discretion.
City of Riverside v. Rivera
477 U.S. 561 (1986) · Jun 27, 1986
Attorney's fees under Section 1988 do not have to be proportional to the damages recovered in a civil-rights case.
Malley v. Briggs
475 U.S. 335 (1986) · Mar 5, 1986
An officer who obtains an arrest warrant by submitting an affidavit so lacking in probable cause that no reasonably competent officer would have relied on it is not shielded by qualified immunity — the shield protects all but the plainly incompetent or those who knowingly violate the law.
Thomas v. Arn
474 U.S. 140 (1985) · Dec 4, 1985
A court of appeals may adopt a rule that a party who fails to file timely objections to a magistrate judge's report and recommendation forfeits appellate review of the unobjected findings, so long as the party was warned of that consequence.
Kentucky v. Graham
473 U.S. 159 (1985) · Jun 28, 1985
Personal-capacity suits seek to hold an officer personally liable; official-capacity suits are really suits against the government entity itself — and fee liability under § 1988 runs with merits liability, not against non-parties.
Tennessee v. Garner
471 U.S. 1 (1985) · Mar 27, 1985
Police may not use deadly force to prevent the escape of a fleeing suspect unless the officer has probable cause to believe the suspect poses a significant threat of death or serious physical injury to the officer or others.
Tower v. Glover
467 U.S. 914 (1984) · Jun 27, 1984
Public defenders do not have immunity from § 1983 suits alleging they intentionally conspired with state officials to deprive a client of federal rights.
New York v. Quarles
467 U.S. 649 (1984) · Jun 12, 1984
Police may ask limited questions without Miranda warnings when they face an immediate public-safety emergency, such as finding a missing weapon.
Illinois v. Gates
462 U.S. 213 (1983) · Jun 8, 1983
The rigid 'two-pronged test' for evaluating informant tips under Aguilar-Spinelli is replaced by a 'totality of the circumstances' approach for determining probable cause.
Texas v. Brown
460 U.S. 730 (1983) · Apr 19, 1983
The plain view doctrine permits seizure of evidence without a warrant when an officer is lawfully in a position to view the object, its incriminating character is immediately apparent, and the officer has lawful access to the object; 'immediately apparent' requires only probable cause, not certainty, that the item is contraband or evidence of a crime.
Harlow v. Fitzgerald
457 U.S. 800 (1982) · Jun 24, 1982
Government officials performing discretionary functions are shielded from damages liability unless they violate clearly established statutory or constitutional rights of which a reasonable person would have known.
City of Newport v. Fact Concerts, Inc.
453 U.S. 247 (1981) · Jun 26, 1981
A municipality is immune from punitive damages under 42 U.S.C. § 1983, as neither the retributive nor deterrence objectives of punitive damages would be significantly advanced by holding municipalities liable for such damages.
Owen v. City of Independence
445 U.S. 622 (1980) · Apr 16, 1980
Municipalities have no qualified immunity in § 1983 actions — a local government may not assert the good faith of its officers or agents as a defense to liability.
Baker v. McCollan
443 U.S. 137 (1979) · Jun 26, 1979
Detention pursuant to a facially valid arrest warrant does not violate the Fourteenth Amendment's Due Process Clause merely because the wrong person was arrested, and a sheriff executing a valid warrant is not constitutionally required to independently investigate every claim of innocence.
Franks v. Delaware
438 U.S. 154 (1978) · Jun 26, 1978
When a defendant shows by a preponderance of the evidence that a police officer knowingly, intentionally, or with reckless disregard for the truth included a false statement in a warrant affidavit, and the false statement was necessary to the finding of probable cause, the warrant must be voided and the fruits of the search excluded.
Monell v. Department of Social Services
436 U.S. 658 (1978) · Jun 6, 1978
Local governments are 'persons' that can be sued under § 1983 when an official policy or custom causes a constitutional violation — but a city cannot be held liable solely because it employs a wrongdoer.
Stone v. Powell
428 U.S. 465 (1976) · Jul 6, 1976
Where a state has provided an opportunity for full and fair litigation of a Fourth Amendment claim, a state prisoner may not obtain federal habeas corpus relief on the ground that evidence obtained in an unconstitutional search or seizure was introduced at trial.
Imbler v. Pachtman
424 U.S. 409 (1976) · Mar 2, 1976
A state prosecutor has absolute immunity from Section 1983 damages claims for acts tied to initiating and pursuing a criminal prosecution and presenting the State's case.
Lewis v. City of New Orleans
415 U.S. 130 (1974) · Feb 20, 1974
A New Orleans ordinance making it unlawful to curse, revile, or use obscene or opprobrious language toward a police officer is facially overbroad in violation of the First and Fourteenth Amendments.
Roe v. Wade
410 U.S. 113 (1973) · Jan 22, 1973
The Court held that the Constitution protected a woman's qualified right to choose abortion, a rule later overruled by Dobbs.
Giglio v. United States
405 U.S. 150 (1972) · Feb 24, 1972
The prosecution violates due process when it fails to disclose a material promise of leniency made to a key witness; impeachment evidence falls within Brady, and the government's disclosure duty is not avoided because one prosecutor did not know what another prosecutor promised.
Sibron v. New York
392 U.S. 40 (1968) · Jun 10, 1968
An officer who observed a suspect talking with known narcotics addicts over an eight-hour period did not have probable cause to search the suspect, and a frisk that reached into the suspect's pocket without an articulable basis to believe the suspect was armed exceeded the permissible scope of a Terry stop.
Terry v. Ohio
392 U.S. 1 (1968) · Jun 10, 1968
A police officer may briefly stop and pat down a person for weapons if the officer has reasonable, articulable suspicion that the person is engaged in criminal activity and may be armed and dangerous.
Pierson v. Ray
386 U.S. 547 (1967) · Apr 11, 1967
Police officers sued under § 1983 may raise the defense of good faith and probable cause — the origin of what would later become qualified immunity.
Beck v. Ohio
379 U.S. 89 (1964) · Nov 23, 1964
An arrest without a warrant must be based on probable cause, and where officers lacked sufficient facts to justify an arrest—relying only on the suspect's prior record and an unverified tip—the arrest violated the Fourth Amendment and evidence obtained in a search incident to that arrest must be suppressed.
New York Times Co. v. Sullivan
376 U.S. 254 (1964) · Mar 9, 1964
A public official cannot recover damages for defamatory falsehood relating to official conduct unless the statement was made with 'actual malice' — knowledge that it was false or reckless disregard of whether it was false or not.
Brady v. Maryland
373 U.S. 83 (1963) · May 13, 1963
The prosecution violates due process when it suppresses evidence favorable to the accused that is material to guilt or punishment, regardless of the prosecutor's good faith or bad faith.
Foman v. Davis
371 U.S. 178 (1962) · Dec 3, 1962
Leave to amend a pleading under Rule 15(a) should be freely given when justice so requires, and should not be denied absent undue delay, bad faith, dilatory motive, repeated failure to cure deficiencies, undue prejudice to the opposing party, or futility of the amendment.
Monroe v. Pape
365 U.S. 167 (1961) · Feb 20, 1961
Section 1983 reaches police officers who misuse state authority even when their actions violate state law, and plaintiffs do not have to exhaust state remedies before suing in federal court.
Brown v. Board of Education
347 U.S. 483 (1954) · May 17, 1954
Racial segregation in public schools violates the Equal Protection Clause and the doctrine of 'separate but equal' has no place in public education.
Plessy v. Ferguson
163 U.S. 537 (1896) · May 18, 1896
The Court upheld state-enforced racial segregation under the 'separate but equal' doctrine, a rule later rejected by Brown.
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