Responding to a 3 a.m. call about a loud party, police arrived at the house in question, heard shouting inside, proceeded down the driveway, and saw two juveniles drinking beer in the backyard. Entering the yard, they saw through a screen door and windows an altercation in the kitchen between four adults and a juvenile, who punched one of the adults, causing him to spit blood in a sink. An officer opened the screen door and announced the officers’ presence. Unnoticed amid the tumult, the officer entered the kitchen and again cried out, whereupon the altercation gradually subsided. The officers arrested respondents and charged them with contributing to the delinquency of a minor and related offenses. The trial court granted their motion to suppress all evidence obtained after the officers entered the home on the ground that the warrantless entry violated the Fourth Amendment, and the Utah Court of Appeals affirmed. Affirming, the State Supreme Court held that the injury caused by the juvenile’s punch was insufficient to trigger the “emergency aid doctrine” because it did not give rise to an objectively reasonable belief that an unconscious, semiconscious, or missing person feared injured or dead was in the home. Furthermore, the court suggested the doctrine was inapplicable because the officers had not sought to assist the injured adult but had acted exclusively in a law enforcement capacity. The court also held that the entry did not fall within the exigent circumstances exception to the warrant requirement.