When can Utah courts exclude witnesses for discovery violations? State v. Tiliaia Explained

In State v. Tiliaia, the Utah Court of Appeals addressed the delicate balance between a defendant’s constitutional right to present witnesses and a trial court’s authority to manage discovery violations through witness exclusion sanctions.

Background and Facts: Defendant Seruka Tiliaia was convicted of murder, aggravated assault, and obstruction of justice following a shooting at a party in Kearns. During trial, Tiliaia attempted to call Marco Etsitty as a witness, even though Etsitty had not been included on the formal witness list despite being interviewed and subpoenaed three weeks prior to trial. The trial court excluded Etsitty’s testimony as a sanction for the discovery violation.

Key Legal Issues: The primary issues included whether the trial court abused its discretion in excluding witness testimony, whether alleged prosecutorial misconduct affected the verdict, and whether hearsay statements qualified as excited utterances under Utah Rule of Evidence 803(2).

Court’s Analysis and Holding: The Court of Appeals affirmed, applying an abuse of discretion standard to the trial court’s witness exclusion decision. While acknowledging that excluding witness testimony is “extreme in nature,” the court found the sanction appropriate given that Etsitty appeared deliberately omitted from the witness list. The court emphasized that any error was harmless beyond a reasonable doubt because Etsitty’s testimony would have been largely cumulative with other evidence regarding a second gunman.

Regarding the excited utterance claim, the court applied correctness review to legal questions and clear error to factual determinations, ultimately reviewing the admissibility ruling for abuse of discretion. The court affirmed the exclusion of hearsay statements, noting that mere emotional reaction is insufficient—the proponent must establish that the declarant lacked capacity for reasoned reflection due to ongoing excitement from the startling event.

Practice Implications: This decision reinforces that trial courts have substantial discretion in managing discovery violations, but exclusion sanctions should be employed with “caution and restraint.” For practitioners, the case underscores the importance of timely and complete witness disclosure, as strategic omissions may result in exclusion even when witnesses are interviewed and subpoenaed well before trial.