Case v Montana

Probable cause is a criminal investigation tool. It answers one question: is there reason to believe a crime occurred? That question has nothing to do with whether someone inside a home needs emergency help right now.

Montana required police to have probable cause before making a warrantless emergency entry. The problem is that probable cause was designed for a completely different situation. When officers respond to a 911 call about a possible suicide, they are not building a criminal case. They are trying to prevent a death. The question is not "did a crime happen" but "is someone in danger."

The Court called this a "transplant." Montana took a legal standard from one context and tried to apply it to another. Standards are built for specific questions. Transplanting them to different questions doesn't add protection, it adds confusion. Courts end up asking the wrong question in the name of rigor.

Justice Kagan's majority makes it simple: Brigham City's reasonableness standard "means just what it says, with no further gloss." No transplants. No extra requirements. Objectively reasonable basis to believe someone is seriously injured or imminently at risk. That is the test.

Montana's Supreme Court ruled the warrantless entry was legal. That was the correct result. But it got there by asking the wrong question under the wrong standard.

The U.S. Supreme Court's job here was not to reverse Montana. It was to correct the reasoning so that future cases across the country follow the right framework. You can reach the right answer for the wrong reason in one case and create a mess in every case that comes after it.

Applying Brigham City's objective reasonableness standard to what actually happened: officers responded to a 911 call reporting a suicide threat with a gunshot sound. They arrived at a home, knocked, got no response, could see the person inside but couldn't get him to engage, and entered. Everything about that situation gave them an objectively reasonable basis to believe someone inside might be seriously injured. The entry was lawful.

The Supreme Court affirmed. Not because Montana's probable cause analysis was right, but because the entry was reasonable under the standard that actually applies.

Three justices wrote separately, and the three opinions represent genuinely different ways of thinking about constitutional law, not just different emphases.

Justice Kagan's majority is pragmatic: she identifies the error, corrects it, applies the right standard, and moves on. Probable cause answers the wrong question here. Brigham City answers the right one. Case closed.

Justice Gorsuch's concurrence digs under the caselaw to ask why the emergency aid exception exists at all. His answer: common law property doctrine. At common law, any private citizen had a recognized privilege to enter another's land to prevent serious harm or save a life without being liable for trespass. If ordinary people always had that right, police have it at minimum as much. Gorsuch is not building a new exception. He is arguing the exception is ancient and doesn't need judicial invention to justify it. An entry to save a life was never "unreasonable" under any legal tradition this country inherited.

Justice Sotomayor's concurrence agrees the entry was reasonable but flags something the majority left unaddressed: armed police entry into a mental health crisis can make things worse, not better. She cites data on how often mental health calls result in shootings, notes that half of American homes contain firearms, and points out that in this specific case, Case told his girlfriend he wanted police to kill him. Sending armed officers through the door was exactly the escalation he was trying to provoke. She argues courts should look not just at whether entry was permissible but whether de-escalation, distance, or time might have better served the goal of preventing harm.

Bryan noted after the opinion that the three frameworks may track generational lines among the justices. Kagan's pragmatic correction, Gorsuch's originalist property-rights grounding, and Sotomayor's real-world-consequences lens are not just different methodologies. They may reflect different formations of legal thought from different eras of American legal education.