Does DUI merge with automobile homicide under Utah's merger doctrine? State v. Perez-Avila Explained

In State v. Perez-Avila, the Utah Court of Appeals addressed whether DUI should merge as a lesser included offense with automobile homicide charges, providing important guidance on Utah’s merger doctrine and its application to overlapping vehicular offenses.

Background and Facts

Perez-Avila was convicted of two counts of automobile homicide, DUI, child abuse, and having an open container after rolling his pickup truck on Interstate 15. His pregnant wife and unborn child were killed, and his children were seriously injured. Blood tests showed his alcohol concentration at .240—three times the legal limit. The trial court found he was unconscious during the blood draw. Perez-Avila claimed ineffective assistance of counsel for his attorney’s failure to seek suppression of blood evidence and failure to request merger of the DUI charge.

Key Legal Issues

The court examined two issues: (1) whether trial counsel was ineffective for failing to suppress blood draw evidence, and (2) whether counsel was ineffective for failing to request that the DUI charge merge with the automobile homicide charges under Utah’s merger doctrine codified in Utah Code section 76-1-402.

Court’s Analysis and Holding

The court held that counsel was not ineffective regarding the blood evidence because any suppression motion would have been futile. Under Utah’s implied consent statute, unconscious drivers cannot withdraw consent to blood testing. However, the court found counsel was ineffective for failing to request merger. Under the Strickland standard, the court applied State v. Smith’s analysis, which departed from the nebulous “nature and purpose” test in favor of examining statutory language and structure. The automobile homicide statute requires proof of all DUI elements plus causing death while driving negligently. Since the greater offense cannot be committed without the lesser, DUI merges with automobile homicide under section 76-1-402(3).

Practice Implications

This decision clarifies that Utah’s merger doctrine applies when statutory elements show the greater offense necessarily includes the lesser offense. Defense attorneys must identify potential lesser included offenses and move for consolidation to avoid double jeopardy violations. The court’s emphasis on plain statutory language over judicial interpretation of legislative purpose provides clearer guidance for merger analysis in future cases involving overlapping criminal offenses.