Independent defense experts
McWilliams v. Dunn
In brief
The Supreme Court ruled that Alabama courts wrongly found McWilliams got all the help Ake required under federal law that was already clear.
- Where it stands
- Decided
Decided 5-4 · June 19, 2017 · Opinion by Justice Breyer
- What it’s about
- James McWilliams argued that Alabama failed to provide the mental-health expert help required by the Supreme Court’s earlier decision in Ake v. Oklahoma.
- Who it affects
- The ruling rejects Alabama's finding about the assistance McWilliams received, but does not state what relief he received.
Summary: written with AI from the case record.

What it's about
The Supreme Court ruled that the Alabama courts’ finding that he received all the help Ake required went against, or unreasonably applied, clearly established federal law.
McWilliams's Alabama death-penalty defense relied on mental-health evidence linked to multiple head injuries. The appointed expert reported to the court and both sides two days before sentencing; counsel had no chance to consult him, and records came at the hearing.
Ake v. Oklahoma says an indigent defendant must receive meaningful expert help when mental health is important to the case.
Question presented
When this Court held in Ake that an indigent defendant is entitled to meaningful expert assistance for the "evaluation, preparation, and presentation of the defense,” did it clearly establish that the expert should be independent of the prosecution?
What the Court decided
Holding
The Alabama courts’ determination that McWilliams received all the assistance to which Ake entitled him was contrary to, or an unreasonable application of, clearly established federal law.
The Court's reasoning
The Court applied Ake's requirement of meaningful expert help and concluded that Alabama courts' finding that McWilliams received all required assistance conflicted with, or unreasonably applied, federal law that was already clear.
The vote
From the opinions
“Ake did not clearly establish that a defendant is entitled to an expert who is a member of the defense team.”
What's next
The decision does not identify a further step for Alabama courts or say what relief McWilliams ultimately received.
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: Questions Presented
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.