Can courts conflate Rule 702 and Expert Notice Statute requirements? State v. Peraza Explained

In State v. Peraza, the Utah Supreme Court addressed a critical distinction that appellate practitioners must understand when challenging expert witness testimony in criminal cases. The court of appeals had vacated Peraza’s sodomy convictions, but the Supreme Court found that the lower court erroneously conflated two distinct legal frameworks.

Background and Facts

Peraza was convicted of four counts of sodomy on a child based on allegations that he sexually abused his nine-year-old stepdaughter. During pretrial proceedings, the State filed notice of its intent to call a forensic interviewer as an expert witness to testify about children’s disclosure patterns, including delayed disclosures and recantations. Peraza objected to the expert testimony and later requested a continuance to obtain his own expert witness. The trial court denied both requests, and Peraza was convicted after trial.

Key Legal Issues

The case presented two primary issues: whether the court of appeals properly analyzed the admissibility of expert testimony under Utah Rule of Evidence 702 and the Expert Notice Statute, and whether the court correctly assigned the burden of proving prejudice from the denial of Peraza’s continuance motion.

Court’s Analysis and Holding

The Supreme Court held that the court of appeals erroneously conflated the requirements and remedies of Rule 702 and the Expert Notice Statute. Rule 702 governs the admissibility of evidence at trial and focuses on whether expert testimony is reliable and helpful to the jury. The Expert Notice Statute, by contrast, establishes pretrial notice requirements to enable parties to prepare for expert testimony. The court emphasized that compliance with the Expert Notice Statute is not an element of admissibility under Rule 702, and that expert testimony may be excluded under the Expert Notice Statute only when a party deliberately violates the statute.

The court also corrected the burden-shifting analysis for continuance denials. Because Peraza did not request his continuance under the Expert Notice Statute but rather sought time to obtain his own expert witness, the standard prejudice analysis applied, placing the burden on Peraza to prove prejudice.

Practice Implications

This decision clarifies that practitioners must analyze expert testimony challenges under two separate frameworks. When the State provides inadequate notice under the Expert Notice Statute, the primary remedy is a continuance, not exclusion of testimony. Exclusion occurs only for deliberate violations. For Rule 702 challenges, practitioners should focus on whether the expert’s methodology is reliable and whether the testimony will help the jury, regardless of notice compliance.