No. 16-8255October Term 2017Decided May 14, 2018
McCoy v. Louisiana
A criminal defense lawyer cannot override a defendant's clear decision to maintain innocence by telling the jury the defendant is guilty.
Case status
- Current stage
- Decided
- Latest event
- Decision released May 14, 2018
- What it's about
This case asked whether a criminal defendant’s lawyer can admit the defendant is guilty at trial even when the defendant clearly insists on maintaining innocence. Robert McCoy’s lawyer conceded that McCoy committed three murders in an effort to avoid a death sentence, despite McCoy’s repeated objections.
Question presented
Is it unconstitutional for defense counsel to concede an accused's guilt over the accused's express objection?
- Case path
Supreme Court of Louisiana / Decision released May 14, 2018
- Area
Decided Supreme Court case
Briefing
What it's about
The Court said it is unconstitutional for a defense lawyer to concede a defendant's guilt when the defendant clearly objects and insists on maintaining innocence. The case came from Robert McCoy's murder trial, where his lawyer admitted McCoy committed the killings to try to avoid a death sentence.
Impact
The decision protects a defendant's control over the basic goal of the defense. For example, a lawyer cannot admit guilt over a client's clear objection just because the lawyer thinks that may avoid a harsher sentence.
What's next
The Supreme Court has finished this docket action. The decision now guides lower courts, trial judges, and defense lawyers when clients object to conceding guilt.
What was the central fight in McCoy v. Louisiana?
It asked whether a defense lawyer may tell the jury a client is guilty after the client clearly objects. McCoy said he wanted to maintain innocence.
How does the decision affect criminal trials?
It means defendants keep control over whether to admit guilt or maintain innocence. Lawyers still manage strategy, but not that basic choice.
What happened next procedurally after the Supreme Court decided McCoy's case?
The Supreme Court finished its work on this docket action. The decision now serves as guidance for lower courts and trial lawyers.
Decision
What the Court decided
A criminal defense lawyer cannot override a defendant's clear decision to maintain innocence by telling the jury the defendant is guilty.
Impact
The decision protects a defendant's control over the basic goal of the defense. For example, a lawyer cannot admit guilt over a client's clear objection just because the lawyer thinks that may avoid a harsher sentence.
Not official Court text.
Opinion documents
Related cases




Grounding
- Grounding
- Primary materials plus reporting.
- Note
- Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.
- Checked
- Jul 2, 2026
- Method
- Methodology
Primary materials8
Supreme Court docket 16-8255
docket | Jul 3, 2026
Primary case document
Supreme Court document | Jul 3, 2026
CourtListener docket record
docket | Jul 3, 2026
Questions Presented
brief | May 24, 2026
opinion
opinion | May 14, 2018
SupremeCourt.gov
official | Jul 2, 2026
SupremeCourt.gov
official | Jul 2, 2026
SupremeCourt.gov
official | Jul 2, 2026