At 3:00 a.m. on July 23, 2000, police in Brigham City, Utah were called to a home for a loud party. The officers saw teens drinking alcohol in the backyard and a fight taking place inside the home. Several people were involved in the fight, and at least one person was injured. An officer opened the door and announced himself, but no one heard. The officer then entered the home and yelled, at which point the fight stopped. Stuart and other partygoers (defendants) were arrested on charges of disorderly conduct, intoxication, and contributing to the delinquency of a minor. The defendants argued that the officers’ entry into the home without a warrant violated the Fourth Amendment and moved to suppress evidence gathered after entry. The trial court granted the motion. The Utah Court of Appeals then affirmed.