In the unanimous decision of Case v. Montana, the Supreme Court of the United States affirmed that police may enter a residence without a warrant to provide emergency assistance. The Court clarified that such entries are lawful if officers have an objectively reasonable basis to believe an occupant is in immediate danger, a standard that does not require the higher threshold of probable cause. In this specific instance, the Court found the entry justified because officers reasonably believed the petitioner was suicidal and potentially already injured. While the majority focused on this reasonableness standard, Justice Sotomayor’s concurrence highlighted the risks of escalation in mental health crises, and Justice Gorsuch’s concurrence linked the ruling to common-law traditions regarding property and safety. Ultimately, the ruling maintains the sanctity of the home while ensuring officials can act swiftly to preserve human life during dire emergencies.