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Chiaverini v. City of Napoleon, Ohio

Updated Sep 5, 2026

In brief

Police or other officials cannot defeat a Fourth Amendment claim over a baseless charge merely by pointing to probable cause for a different charge.

Where it stands
Decided

Decided 6-3 · June 20, 2024 · Opinion by Justice Kagan

What it’s about
The Supreme Court ruled that a Fourth Amendment malicious prosecution claim can proceed regarding a baseless criminal charge, even if other valid charges supported by probable cause were brought at the same time.
Who it affects
A person facing several charges can challenge a baseless charge even when another charge was supported by probable cause. Lower courts must assess the challenged charge rather than treating one valid charge as a complete defense.

Summary: written with AI from the case record.

Illustration for Chiaverini v. City of Napoleon, Ohio
Conceptual illustration · AI-generated

What it's about

The Court rejected a lower court's rule that the presence of probable cause for any single charge automatically defeats a malicious prosecution claim for other baseless charges.

The decision says Fourth Amendment claims involving pretrial detention and baseless charges are governed by a charge-specific rule.

Question presented

May a Fourth Amendment malicious-prosecution claim proceed as to a baseless criminal charge so long as other charges brought alongside the baseless charge are supported by probable cause?

What the Court decided

Holding

The presence of probable cause for one charge in a criminal proceeding does not categorically defeat a Fourth Amendment maliciousprosecution claim relating to another, baseless charge. The parties, and the United States as amicus curiae , all agree with this conclusion, which follows from both the Fourth Amendment and traditional common-law practice. Under the Fourth Amendment, a pretrial detention counts as an unreasonable seizure, and so is illegal, unless it is based on probable cause. See Manuel v. Joliet , 580 U. S. 357, at 364–369. Even when a detention is justified at the outset, moreover, it may become unreasonably prolonged if the reason for it lapses. Rodriguez v. Vacated and remanded.

Result
Vacated

The vote

  • Joined the judgment
  • Dissented
  • Wrote an opinion
Majority · 6joined the Court's opinion
  1. Kaganwrote the opinion
  2. Roberts
  3. Sotomayor
  4. Kavanaugh
  5. Barrett
  6. Jackson
Dissenting · 3disagreed with the result
  1. Thomaswrote a dissent
  2. Alito
  3. Gorsuchwrote a dissent
6 justices joined the judgment, 3 dissented.

From the opinions

“The presence of probable cause for one charge in a criminal proceeding does not categorically defeat a Fourth Amendment maliciousprosecution claim relating to another, baseless charge.”

— Justice Elena Kagan(majority)

“Respectfully, it is hard to know where this tort comes from.”

— Justice Neil Gorsuch(dissent)

What's next

The case returns to the lower courts, which must apply the charge-specific rule. Courts and affected officials must evaluate whether the challenged charge itself lacked probable cause and caused an unreasonable seizure.

Documents

5

Docket activity

11
  • New analysis added

    Sep 5, 2026 · Court records

  • AI analysis generated: Impact Analysis

    Sep 5, 2026 · Generated

  • AI analysis generated: Opinion Summary

    Sep 5, 2026 · Generated

  • New analysis added

    Sep 5, 2026 · Court records

  • AI analysis generated: Case Briefing

    Sep 5, 2026 · Generated

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  • AI analysis generated: Decision Record

    Sep 5, 2026 · Generated

  • Opinion added: Chiaverini

    Jun 20, 2024 · Court records

  • Opinion added: opinion

    Jun 20, 2024 · Court records

  • Brief added: Petition

    Jul 14, 2023 · Court records

  • Court Order added: Lower Court Orders/Opinions

    Apr 21, 2023 · Court records

  • Brief added: Questions Presented

    Court records

More questions

5
What did the Supreme Court rule in Chiaverini v. City of Napoleon?
The Court ruled that probable cause for one charge does not automatically defeat a Fourth Amendment claim concerning another baseless charge.
Who won Chiaverini v. City of Napoleon?
Jascha Chiaverini won the Supreme Court ruling on the legal question. The Court rejected the Sixth Circuit's contrary rule and sent the case back.
How does Chiaverini affect people facing multiple charges?
They may challenge a baseless charge even if another charge had probable cause. Courts must consider the challenged charge separately.
What happens next in Chiaverini v. City of Napoleon?
The lower courts will reconsider the case under the Supreme Court's charge-specific rule.
Is the charge-specific rule still the law after Chiaverini?
Yes. Probable cause for one charge does not categorically defeat a Fourth Amendment malicious-prosecution claim involving another baseless charge.

Sources

Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.

Checked Sep 5, 2026Methodology

Court records and filings

Reporting and analysis