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Right to question witnesses

Katherine Lea Stanfield v. Tyvand

Updated Nov 12, 2026

In brief

Where it stands
Dismissed

Petition denied.

What it’s about
Katherine Stanfield asked the U.S.
Who it affects
Stanfield’s request for Supreme Court review ended, but the Court did not decide whether her trial violated her rights.

Summary: written with AI from the case record.

Illustration for Katherine Lea Stanfield, Petitioner v. Jennifer Tyvand, Warden
Conceptual illustration · AI-generated

What it's about

Supreme Court to review her claim that her trial violated her right to question witnesses against her because a pathologist relied partly on a lab technician’s out-of-court evidence about a child’s death, and that Idaho’s highest court misapplied federal law. The Court refused to hear the case (denied review), so it did not decide whether her claims were correct.

The dispute arose from expert testimony at Stanfield’s trial and her later challenge to how Idaho’s courts handled it.

Question presented

1. Whether Katherine Stanfield was deprived of her Sixth Amendment right to confront her accusers when the trial court allowed the State’s expert pathologist to offer her opinion that a child had died from severe, non-accidental trauma to his brain, when that opinion that was based, in large part, on testimonial evidence prepared out-of-court by a lab technician. 2. Whether the Idaho Supreme Court’s opinion on the Sixth Amendment question was contrary to or an unreasonable application of clearly established federal law as determined by this Court.

Documents

1

Docket activity

6
  • New analysis added

    Nov 12, 2026 · Court records

  • AI analysis generated: Case Briefing

    Nov 12, 2026 · Generated

  • AI analysis generated: Decision Record

    Nov 12, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Nov 12, 2026 · Court records

  • Case data updated: question_presented, extraction_metadata

    Nov 12, 2026 · Court records

Show 1 more
  • Brief added: Petition

    Jul 18, 2026 · Court records

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 Nov 12, 2026Methodology

Court records and filings

Reporting and analysis