Can concurrent representation of co-defendants violate the Sixth Amendment? State v. Tirado Explained

The Utah Court of Appeals addressed a critical issue in criminal defense representation in State v. Tirado, examining when an attorney’s concurrent representation of co-defendants violates the Sixth Amendment’s guarantee of effective assistance of counsel.

Background and Facts

William Tirado and his cousin were arrested following a sting operation where a paid informant attempted to purchase drugs. While no drugs were found on Tirado, his cousin possessed 2.1 grams of methamphetamine and allegedly told police he would sell from that amount if needed. The same appointed counsel represented both defendants. The cousin eventually pleaded guilty to attempted possession with intent to distribute, while Tirado’s case proceeded to trial. At trial, the attorney did not call the cousin as a witness and failed to object when the officer testified about the cousin’s incriminating statement. Tirado was convicted of arranging distribution of a controlled substance.

Key Legal Issues

The central issue was whether the attorney’s concurrent representation created an actual conflict of interest that adversely affected his performance. Tirado argued the conflict prevented his attorney from calling his cousin as a witness and from objecting to inadmissible hearsay testimony about the cousin’s statement to police.

Court’s Analysis and Holding

Following a Rule 23B remand for additional factual findings, the trial court determined that the cousin was willing to testify that he and Tirado were not working together to sell drugs and would deny admitting intent to sell to police. However, this testimony would have been inconsistent with the cousin’s plea agreement. The Court of Appeals concluded that concurrent representation created a substantial risk that the attorney’s representation of Tirado would be materially limited by his duties to the cousin. The court applied the standard from State v. Webb, considering whether other counsel would likely have made the omitted arguments and whether there was a tactical reason beyond the conflict for the omissions.

Practice Implications

This decision reinforces that attorneys must carefully evaluate potential conflicts when representing multiple defendants in related cases. The court emphasized that even when there might be tactical reasons for certain decisions, actual conflicts of interest are presumed to cause prejudice when they adversely affect counsel’s performance. Defense attorneys should consider requesting separate counsel when one co-defendant’s testimony could significantly benefit another’s defense.