October Term 2010 · Docket 10-98

Does a prosecutor hold absolute immunity for a material witness arrest?

The dispute centers on whether a prosecutor can be sued for arresting a witness without probable cause.

Official caption
Ashcroft v. al-Kidd
Latest argument session
Latest official Court activity
Latest verified event
Argued
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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

    General Katyal argued the arrest serves a core prosecutorial purpose.

    Mr. Gelernt cited the Fourth Amendment requirement for probable cause.

    justice_questions

    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

This case tests the scope of prosecutorial immunity. the side that brought the case seeks absolute protection from civil suits. the opposing side argues qualified immunity applies instead.

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How the case got here

The Supreme Court heard oral argument in this case on March 2, 2011.

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What each side wants

the side that brought the case wants absolute immunity from civil liability for the arrest.

the opposing side wants qualified immunity to apply to the arrest.

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What each side says

the side that brought the case argues the arrest is a core prosecutorial function.

the opposing side argues the arrest is not a core prosecutorial function.

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What the justices asked

Justice Scalia asked if the statute changes the immunity analysis.

Justice Breyer asked about a prosecutor's intent to misuse the process.

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Why it matters

This case defines the boundary of prosecutorial power. It determines when officials face personal liability for arrests. It balances public safety against individual rights.

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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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