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Prisoner transport for evidence

Shoop v. Twyford

Updated Sep 19, 2026

In brief

The Supreme Court overturned the Sixth Circuit’s ruling and sent the case back to the lower court (remanded it) because Twyford had not shown that the requested evidence could be admitted for a specific claim.

Where it stands
Decided

Decided 5-4 · June 21, 2022 · Opinion by Chief Justice Roberts

What it’s about
Raymond Twyford, an Ohio death-row prisoner, asked a federal court to transport him to a hospital for neurological testing to develop evidence for his habeas petition (a prisoner’s challenge to being locked up).
Who it affects
The ruling limits a federal court’s ability to order a state prisoner transported to look for evidence.

Summary: written with AI from the case record.

Illustration for Shoop v. Twyford
Conceptual illustration · AI-generated

What it's about

The Supreme Court overturned the Sixth Circuit’s ruling (reversed) and sent the case back to the lower court (remanded), deciding that the All Writs Act did not authorize the order because Twyford had not shown that the evidence could be used for a specific claim.

The case shows how federal review of state-prisoner claims can be limited by rules governing court orders used to gather evidence.

Question presented

1. 28 U.S.C. §2241(c) allows federal courts to issue a writ of habeas corpus ordering the transportation of a state prisoner only when necessary to bring the inmate into court to testify or for trial. It forbids courts from using the writ of habeas corpus to order a state prisoner's transportation for any other reason. May federal courts evade this prohibition by using the All Writs Act to order the transportation of state prisoners for reasons not enumerated in §2241(c)? 2. Before a court grants an order allowing a habeas petitioner to develop new evidence, must it determine whether the evidence could aid the petitioner in proving his entitlement to habeas relief, and whether the evidence may permissibly be considered by a habeas court?

What the Court decided

Holding

A transportation order that allows a prisoner to search for new evidence is not “necessary or appropriate in aid of” a federal court’s adjudication of a habeas corpus action when the prisoner has not shown that the desired evidence would be admissible in connection with a particular claim for relief. 11 F. 4th 518, reversed and remanded.

Result
Reversed

The vote

  • Joined the judgment
  • Dissented
  • Wrote an opinion
Majority · 5joined the Court's opinion
  1. Robertswrote the opinion
  2. Thomas
  3. Alito
  4. Kavanaugh
  5. Barrett
Dissenting · 4disagreed with the result
  1. Breyerwrote a dissent
  2. Sotomayor
  3. Kagan
  4. Gorsuchwrote a dissent
5 justices joined the judgment, 4 dissented.

From the opinions

“I would not reach the merits of that question because I do not believe that the Court of Appeals had jurisdiction to hear the State’s interlocutory appeal.”

— Justice Breyer(dissent)

What's next

The Supreme Court sent the case back to the lower court (remanded it), which will apply the decision to Twyford’s transportation request. The decision did not resolve whether Twyford will ultimately receive relief on his habeas petition.

Why it matters

The prisoner must tie the evidence to a specific claim and show it could be admitted in court; the Court did not decide whether Twyford ultimately gets habeas relief.

Documents

3

Docket activity

11
  • New analysis added

    Sep 19, 2026 · Court records

  • AI analysis generated: Case Briefing

    Sep 19, 2026 · Generated

  • New analysis added

    Sep 19, 2026 · Court records

  • AI analysis generated: Impact Analysis

    Sep 19, 2026 · Generated

  • AI analysis generated: Opinion Summary

    Sep 19, 2026 · Generated

Show 6 more
  • AI analysis generated: Decision Record

    Sep 19, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Sep 19, 2026 · Court records

  • Case data updated: status, opinion_date

    Jul 25, 2026 · Court records

  • Opinion added: opinion

    Jun 21, 2022 · Court records

  • Brief added: Petition

    Oct 4, 2021 · Court records

  • Brief added: Questions Presented

    Court records

More questions

4
What did Shoop v. Twyford decide about the hospital-testing order?
The Court said a federal court cannot authorize transport merely to search for new evidence. It must first determine whether the evidence could be admitted for a specific claim.
Why did the Supreme Court send Twyford’s case back?
It overturned the Sixth Circuit’s ruling and sent the case back to the lower court (remanded it). That was because Twyford had not shown the requested evidence could be admitted for a particular claim.
What remains unresolved after Shoop v. Twyford?
The Court did not decide whether Twyford will ultimately receive relief on his habeas petition. The lower court still must handle the remaining proceedings.
What happens next in Shoop v. Twyford?
The lower court will apply the ruling when it revisits Twyford’s transportation request. It must assess whether the proposed evidence is tied to a specific claim and could be admitted.

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 19, 2026Methodology

Court records and filings

Reporting and analysis