Types of Civil Rights Violations

Reviewed by Uma Prescott (UP), Editor-in-Chief — Civil Rights & Section 1983 Litigation Practice. Updated May 2026.

Section 1983 is a remedial statute — it does not create constitutional rights itself but provides a federal cause of action to enforce independently existing constitutional and federal statutory rights against state and local government actors. The specific constitutional provision violated determines the applicable legal standard, the evidence required to establish a claim, and the defenses available to the government defendant. The most litigated § 1983 claim categories are described below.

Excessive force (Fourth and Fourteenth Amendment)

The most litigated § 1983 claim and typically the highest-value category. The governing standard is objective reasonableness from Graham v. Connor (1989): would a reasonable officer in the same circumstances have used this level of force? The test is objective — it focuses on what a reasonable officer would have done, not whether the particular officer acted in subjective bad faith. Relevant factors include the severity of the crime at issue, whether the suspect posed an immediate threat to officers or others, and whether the suspect was actively resisting or attempting to flee.

For pretrial detainees, Kingsley v. Hendrickson (2015) confirmed that the objective reasonableness standard applies under the Fourteenth Amendment — defendants cannot escape liability by arguing they subjectively believed they were acting lawfully. For convicted prisoners, the Eighth Amendment governs and requires proof of malicious and sadistic intent for excessive force claims by prison staff.

Fatal force cases produce the largest verdicts in this category, sometimes reaching tens of millions in cases involving legally unjustified shootings. Non-fatal but serious force cases — broken bones, traumatic brain injury, injuries from chokehold or taser use — also produce significant verdicts when the force was clearly disproportionate to the threat.

Unlawful arrest and wrongful detention

An arrest without probable cause violates the Fourth Amendment. Probable cause exists when a reasonable officer, knowing what the arresting officer knew, would have believed the person committed or was committing a crime. An arrest based on a good-faith mistake about identity or facts that reasonable inquiry would have corrected may satisfy probable cause; an arrest based on nothing more than the officer’s subjective suspicion or a fabricated basis does not.

Wrongful conviction cases — where a person is arrested, convicted based on fabricated or withheld evidence, and later exonerated — produce the largest verdicts in the unlawful arrest category, sometimes exceeding $50 million for multi-decade wrongful imprisonments. Malicious prosecution claims (continuing to prosecute without probable cause) are closely related and similarly actionable under the Fourteenth Amendment’s due process clause after McDonough v. Smith (2019).

Extended pretrial detention without probable cause determination also violates the Fourth Amendment. Under Gerstein v. Pugh (1975) and the 48-hour rule from County of Riverside v. McLaughlin (1991), detained persons must generally receive a probable cause determination within 48 hours of warrantless arrest. Extended detention beyond that without judicial review is presumptively unconstitutional.

Unlawful searches and seizures

The Fourth Amendment prohibits unreasonable searches and seizures of persons, homes, papers, and effects. Warrantless searches are presumptively unreasonable; law enforcement must either obtain a warrant supported by probable cause or establish that a recognized exception applies (exigent circumstances, consent, plain view, search incident to lawful arrest, automobile exception, etc.). A search that exceeds the scope or authorization of a warrant is also unconstitutional.

Digital privacy has been an active and expanding area. Riley v. California (2014) held that police may not search the contents of a cell phone incident to arrest without a warrant. Carpenter v. United States (2018) held that accessing historical cell-site location data without a warrant violates the Fourth Amendment. These decisions reflect the Court’s recognition that digital technology requires rethinking the application of Fourth Amendment principles established before electronic devices existed.

Unreasonable seizures of property — including excessive civil asset forfeiture, wrongful seizure of vehicles, or property destruction by law enforcement without legal justification — also state valid § 1983 claims.

First Amendment retaliation

Government action (arrest, prosecution, demotion, harassment, or other adverse action) taken in retaliation for protected speech or association violates the First Amendment. Protected activities include: peaceful protest and assembly; criticism of government officials and policies; complaints about police conduct; speech by public employees on matters of public concern; and association with political or advocacy organizations.

The core elements of a First Amendment retaliation claim: (1) the plaintiff engaged in constitutionally protected activity; (2) the defendant took an adverse action that would chill a person of ordinary firmness from continuing the protected activity; and (3) there was a causal connection between the protected activity and the adverse action. Causation is often established by temporal proximity between the protected activity and the retaliation, combined with direct or circumstantial evidence that the defendant knew of the protected activity.

Common First Amendment retaliation plaintiffs include journalists arrested while covering protests, activists subjected to police harassment after vocal criticism of law enforcement, and public employees who spoke publicly about government misconduct and were subsequently demoted or fired. Under Nieves v. Bartlett (2019), plaintiffs challenging retaliatory arrests must show there was no probable cause for the arrest, with a narrow exception for cases supported by direct evidence of retaliatory intent.

Due process violations

The Fourteenth Amendment prohibits government deprivation of life, liberty, or property without due process of law. This encompasses two distinct doctrines with different standards and applications.

Procedural due process requires adequate procedure before the government deprives someone of a protected interest. The required procedure depends on what interest is at stake and the risk of erroneous deprivation: termination of welfare benefits requires a pre-termination hearing (Goldberg v. Kelly, 1970); termination of public employment may require a pre-termination opportunity to respond (Cleveland Board of Education v. Loudermill, 1985); suspension of a driver’s license requires some form of hearing. The more significant the interest, the more process is due before deprivation.

Substantive due process protects certain fundamental rights and interests from arbitrary or conscience-shocking government interference, regardless of what procedures were provided. Claims include: police use of force that shocks the conscience; deliberate indifference to serious medical needs of pretrial detainees; interference with fundamental rights like family integrity and parental rights without adequate justification. The substantive due process standard is demanding — mere negligence does not suffice; the conduct must be so extreme that it shocks the judicial conscience.

Equal protection

The Fourteenth Amendment’s equal protection clause prohibits government actors from intentionally treating people differently based on race, national origin, sex, and other protected characteristics without constitutionally sufficient justification. Race classifications face strict scrutiny (compelling interest, narrowly tailored); sex classifications face intermediate scrutiny (substantially related to an important interest); other classifications face rational basis review.

Selective enforcement claims — where law enforcement targets individuals for enforcement based on their race, religion, or other protected characteristic rather than their conduct — are actionable under the equal protection clause. These claims require showing both discriminatory effect (similarly situated people of a different race were treated differently) and discriminatory intent (the decision was motivated by the protected characteristic). Intent can be shown through statistical patterns, decision-maker statements, deviation from standard procedures, or the historical sequence of events.

Where to go from here

See the how section 1983 works guide for the elements and defenses applicable to all § 1983 claims, and what to do after a civil rights violation for practical steps to preserve your rights.