New claims over hidden evidence
Vasquez v. Guerrero
In brief
- Where it stands
- Petition Pending
Awaiting an order on the petition
- What it’s about
- Vasquez says he learned after his first federal challenge that Texas had withheld evidence showing a toxicology test was unreliable and presented testimony claiming it showed cocaine in Miranda Lopez’s system.
- What's at stake
- The unresolved question is whether Vasquez needs the Fifth Circuit’s advance approval to pursue this later federal challenge.
Summary: written with AI from the case record.
What it's about
He asks whether the later filing counts as a repeat federal challenge requiring the appeals court’s advance approval; the Supreme Court has not agreed to hear his case.
Vasquez says he learned after his first federal challenge that Texas had withheld evidence that a toxicology test was unreliable and relied on testimony saying the test showed cocaine in Miranda Lopez’s system.
Federal law requires appeals-court approval for some repeat federal challenges to a conviction; Vasquez says his later claims rely on information he did not know during his first case.
Question presented
When an inmate was unaware when he filed his first application for federal habeas relief of the State’s knowing suppression of exculpatory information and knowing reliance on false testimony, is a later-in-time application raising Brady and Napue/Giglio claims properly considered a “second or successive” application subject to 28 U.S.C. § 2244(b)(3)(A)?
What happens next
The petition was distributed for the Court’s Dec. 4, 2026 conference, where the justices may consider whether to hear it; that date does not guarantee an order.
Documents
Docket activity
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AI analysis generated: Case Briefing
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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.