## Facts

- Around 3:00 a.m., Brigham City police officers responded to a complaint about a loud party at a home.
- The officers heard shouting and entered the property’s backyard, where they observed two juveniles drinking beer.
- Looking through a screen door and windows, the officers observed a physical altercation in the kitchen involving four adults and a juvenile.
- The juvenile broke free, punched an adult in the face, and the adult was seen spitting blood into a sink.
- The struggle continued with sufficient force to move a refrigerator across the floor.
- An officer opened the screen door, announced police presence, and then entered the kitchen; the fight stopped once occupants noticed the officers.
- Officers arrested the adults and charged them with contributing to the delinquency of a minor, disorderly conduct, and intoxication.
- Utah courts suppressed evidence on the ground that the warrantless entry did not qualify under the emergency-aid or exigent-circumstances exceptions.
- The U.S. Supreme Court granted review.

## Issues

1. Whether the Fourth Amendment permits police to enter a home without a warrant when officers have an objectively reasonable basis to believe an occupant is seriously injured or imminently threatened with such injury.
2. Whether the legality of an emergency-aid entry depends on officers’ subjective motivations (law enforcement versus rendering aid).

## Decision

- The Supreme Court unanimously reversed and remanded.
- The Court held that police may enter a home without a warrant when they have an objectively reasonable basis to believe an occupant is seriously injured or imminently threatened with such injury.
- The Court rejected the view that emergency aid is limited to situations involving an unconscious, semiconscious, or missing person.
- The Court held that officers’ subjective motivations are irrelevant where the circumstances objectively justify the entry.

## Legal Principles

- The Fourth Amendment’s touchstone is reasonableness; the warrant requirement has recognized exceptions.
- Exigent circumstances include the need to render emergency assistance to persons who are seriously injured or threatened with serious injury.
- Reasonableness of a warrantless entry under the emergency-aid doctrine is assessed objectively based on the facts confronting officers, not on officers’ stated purposes.
- The seriousness of the offense suspected may be relevant in some exigency analyses, but when the exigency arises from immediate threats to safety, the objective risk of injury can justify entry regardless of minor underlying offenses.

## Conclusion

The Court held that warrantless entry into a home is reasonable under the emergency-aid exception when officers have an objectively reasonable basis to believe an occupant is seriously injured or faces an imminent threat of such injury, and that the officers’ subjective intent does not affect the Fourth Amendment analysis.


Brigham City, Utah v. Stuart, 547 U.S. 398 (2006)