Whether the Sixth Amendment permits a trial court to reject a criminal defendant's informed waiver of conflict-free counsel and deny the defendant's choice of attorney because of a conflict or potential conflict of interest.
Holding
Yes. Although the Sixth Amendment includes a presumptive right to counsel of choice, a trial court has substantial latitude to reject a waiver and disqualify chosen counsel when there is an actual conflict or a serious potential for conflict.
Reasoning
The Sixth Amendment protects a defendant's ability to select and retain a preferred lawyer, but its central purpose is to secure effective assistance and a fair adversarial process—not to guarantee representation by a particular attorney in every circumstance. The right to counsel of choice is therefore qualified: a defendant cannot demand representation by an unlicensed lawyer, by a lawyer he cannot retain, or by counsel whose conflicting obligations make representation improper.
Multiple representation creates distinctive risks because a lawyer may be unable to challenge evidence, cross-examine a current or former client, or argue one client's lesser culpability without harming another client. A court alerted to such risks has an independent duty to investigate them and to protect the defendants' Sixth Amendment rights.
A defendant's waiver does not eliminate the trial court's institutional interests. Federal courts must ensure that trials comply with professional ethical standards, produce just verdicts, and appear fair to the public. Rule 44(c) of the Federal Rules of Criminal Procedure likewise directs courts to inquire into joint representation and take appropriate protective measures unless there is good cause to think no conflict is likely.
Trial judges also must decide this question before trial, when the precise testimony, evidence, and relationships among defendants may be uncertain. Because conflicts can emerge unexpectedly and may be difficult for defendants to understand fully when waiving them, the Court held that trial courts need not wait for a proven actual conflict. They may refuse a waiver when a serious potential conflict exists.