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Conflicting DNA evidence

Govan v. English

Updated Nov 11, 2026

In brief

Where it stands
Petition Pending

Awaiting an order on the petition

No decision timeline until the Court agrees to hear the case.

What it’s about
Marcus T.
What's at stake
Govan's request for Supreme Court review remains unresolved.

Summary: written with AI from the case record.

What it's about

Govan argues that DNA from a sexual-assault kit matched his later cheek swab at a reported one-in-a-trillion probability but failed to match his earlier CODIS profile; he also alleges prosecutors withheld the no-match report and his trial lawyer failed to lay a foundation to challenge a witness. His petition asks the Supreme Court to review his conviction on these grounds.

Govan also alleges prosecutors withheld a report showing no match to his earlier DNA profile and that his lawyer failed to properly challenge a prosecution witness.

Question presented

1. Whether Petitioner ’ s conviction violates the Due Process Clause where DNA recovered from a sexual assault kit allegedly matched Petitioner ’ s later-obtained buccal swab at a statistical probability of one in a trillion, while the same evidentiary sample failed to match Petitioner ’ s preexisting DNA profile stored in CODIS. 2. Whether the prosecution violated Brady v. Maryland by suppressing a forensic report documenting the absence of a CODIS match and failing to disclose that report to the defense before trial. 3. Whether DNA evidence satisfies constitutional standards of reliability and sufficiency where contradictory forensic testing produced both a purportedly conclusive statistical match and an exclusion from the defendant ’ s CODIS profile. 4. Whether Petitioner was denied effective assistance of counsel under Strickland v. Washington where trial counsel failed to lay the proper evidentiary foundation necessary to impeach a key prosecution witness.

What happens next

The Court must decide whether to hear Govan's petition. No argument date or decision window is available unless the Court agrees to review the case.

Documents

1

Docket activity

5
  • New analysis added

    Nov 11, 2026 · Court records

  • AI analysis generated: Case Briefing

    Nov 11, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Nov 11, 2026 · Court records

  • Case data updated: question_presented, extraction_metadata

    Nov 11, 2026 · Court records

  • Brief added: Petition

    Jun 22, 2026 · Court records

Sources

Primary materials from the Court and the parties. Grounded in docket records and cited sources. Official filings and opinions remain authoritative.

Checked Nov 11, 2026Methodology

Court records and filings