October Term 2018 · Docket 18-6210

Can police search an unconscious driver's phone without a warrant?

Wisconsin claims implied consent laws allow phone searches. The driver argues this violates the Fourth Amendment.

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Mitchell v. Wisconsin
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Official Transcript

Verified source milestones

  1. — An official oral-argument transcript was verified.

The arguments, in order

This case may have been argued more than once. Each entry below uses that session's official transcript. Later arguments do not erase earlier ones.

  1. Argument 1 ·

    What happened at the argument

    Andrew Hinkel argued the state cannot bypass the Fourth Amendment. He claimed statutes cannot create implied consent for searches.

    Katherine Jurss argued the search was reasonable. She stated drivers agree to testing when they operate vehicles.

    Justice Breyer asked what police should do with an unconscious driver. He questioned the practical steps for officers in emergencies.

    Justice Ginsburg asked if an unconscious driver can revoke a license. She focused on the driver's inability to hear notices.

    Read the official transcript for this argument · Official argument details

    Sources used for this argument breakdown

A citizen's guide to the whole case

What this case is about

The case tests whether implied consent laws override the Fourth Amendment. Police searched a phone after an unconscious driver crashed. The driver claims this search was unlawful. Wisconsin claims the law authorized the search.

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How the case got here

The Supreme Court heard oral argument in this case on April 23, 2019.

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What each side wants

The driver wants the Court to strike down the search. He argues the Fourth Amendment requires a warrant.

Wisconsin wants the Court to uphold the search. It argues implied consent laws authorize the action.

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What each side says

The driver argues the state cannot waive constitutional rights via statute. He claims implied consent does not cover phone data.

Wisconsin argues the search was reasonable. It claims drivers agree to testing when they drive.

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What the justices asked

Chief Justice Roberts asked if checking call logs is less intrusive. He questioned whether this specific search is obviously unconstitutional.

Justice Alito questioned the practicality of getting warrants at night. He asked if judges are always available for emergency searches.

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Why it matters

This case defines police power over digital data. It determines if implied consent laws cover phones. The outcome shapes privacy rights for all drivers.

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What happens next

This article currently covers the argument record. Use the official docket link for later case activity.

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Official Court provenance

Official docket and case history · Official Supreme Court oral-argument detail page

Title and summary sources

Revision history

  1. Revision 1 · Official Transcript ·

    Correction: Rewritten to the concise citizen-facing editorial standard.

  2. Revision 2 · Official Transcript ·

    Correction: Migrated to the dated official Court activity contract without model use.

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