Lawyer's challenge to blood evidence
Mark Alan Winger v. Maher
In brief
- Where it stands
- Dismissed
Petition denied.
- What it’s about
- Mark Alan Winger argued that courts reviewing his claim about his lawyer’s failure to request a Frye hearing to challenge bloodstain-pattern testimony should use state decisions from the time of the lawyer’s conduct, not exclude decisions because they do not fit later changes in state law.
- Who it affects
- The denial ends Winger’s request for Supreme Court review; it does not decide whether his lawyer violated his right to effective counsel.
Summary: written with AI from the case record.

What it's about
The Supreme Court refused to hear his case (denied review) and did not decide that question.
Winger’s claim focuses on whether courts should assess his lawyer’s choices under state law as it stood at the time or account for later changes.
Question presented
Whether a reviewing court making an assessment of counsel's conduct following a petitioner's claim that his Sixth Amendment right to effective assistance of counsel was violated when counsel failed to request a "Frye" hearing to seek to challenge/ limit/ exclude/ and/or strike the blood stain pattern analysis testimony of the State's purported expert in the field of blood stain pattern analysis/ should consider only the State's precedent decisions which formed the state of the law at the time of counsel's challenged conduct; and/ should not exclude from consideration any of the State's precedent decisions that either do not/ or because they do not/ conform favorably to the state of the law as it evolved after counsel's challenged conduct?
Documents
Docket activity
New analysis added
AI analysis generated: Case Briefing
AI analysis generated: Decision Record
Case data updated: summary, question_presented, generation_metadata
Case data updated: question_presented, extraction_metadata
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Brief added: Petition
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.