On January 14, 2026, the United States Supreme Court decided Case v. Montana, in which it affirmed its precedent of the emergency aid exception to the Fourth Amendment’s warrant requirement.[1] However, the Court also expanded the authority of law enforcement officers to enter private residences without a warrant in the case of an emergency. The Court could have upheld precedent as established twenty years ago in Brigham City v. Stuart while also retaining the limitations of the emergency aid exception, but instead, it expanded the exception. The Court’s decision in Case v. Montana may erode previously established constitutional protections for privacy within one’s home.
The Fourth Amendment and the Emergency Aid Exception
The Fourth Amendment of the Constitution provides, in pertinent part, that “[t]he right to the people to be secure in their . . . homes . . . against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause.”[2] The effect of the Fourth Amendment is well established. The police cannot enter a home for the purpose of search or seizure without a warrant. But of course, there are exceptions. One of which is the emergency aid exception. In Mincey v. Arizona, the Court recognized that “[t]he need to protect or preserve life or avoid serious injury is justification for what would be otherwise illegal absent an exigency or emergency.”[3] As a result, law enforcement officers are permitted to make warrantless entry homes if their purpose is to render emergency aid to an injured occupant or protect an occupant from serious injury.
The emergency aid exception was further delineated in Brigham City v. Stuart.[4] In Brigham, police responded to a noise complaint, where they heard shouting from inside the home, and observed a fight between four adults and a juvenile, including a punch that drew blood.[5] The Brigham Court determined that the officers acted constitutionally, establishing that an exception to the warrant requirement exists “as long as the circumstances, viewed objectively, justify [the] action.”[6] In condoning the warrantless entry, the Court considered the 911 call, the police hearing the altercation from outside the home, including hearing “people yelling ‘stop, stop’ and ‘get off me,’” and the police witnessing the fight and the punches being thrown.[7] The Brigham Court ultimately determined a warrantless entry into the home was constitutional because these circumstances created a reasonable basis for believing the individual who was punched needed help and the violence would not subside on its own.
Expansion of the Emergency Aid Exception in Case v. Montana
In Case v. Montana, the Court lowered the justification standards for warrantless entry into William Case’s home, expanding the power of the police to enter homes without warrants. Here, police officers received a 911 call from Case’s ex-girlfriend, who reported Case had threatened to commit suicide, fearing that he may have already done so.[8] Once the officers arrived on scene, they circled the house and observed empty beer cans, an empty handgun holster, and a notepad.[9] When the police arrived, they were informed Case intended to “shoot it out” with the officers if they entered the home.[10] Forty minutes after the police had initially arrived, they decided to enter.[11] Case was convicted of assault on a police officer and, on appeal, Case argued that it was unreasonable that the police entered his home without a warrant. The Supreme Court ultimately granted certiorari on the issue and in a unanimous decision, held the circumstances, including the 911 call did create an objectively reasonable belief.[12]
Silently Lowering the Threshold
The Court correctly asserted the standard for the emergency aid exception is an objectively reasonable belief.[13] But the Court did not lend much credence to the possibility that the basis for entry was not reasonable in Case’s case,[14] thereby unduly expanding the police’s authority under the emergency aid exception. After responding to the 911 call, the police officers did not see Case, blood, or any indication of injury.[15] These circumstances are far less indicative of injury than what the police officers in Brigham City witnessed when they arrived to a house party.
The Court’s opinion places little weight on the police officers’ prior knowledge of Case and the situation itself. But the Court explicitly states when applying the emergency aid exception, the conduct of the police officers should be considered with the “totality of the circumstances.”[16] A true consideration of the totality of the circumstances would lead to the conclusion that Case was unlikely to have taken his own life, but rather that he was planning to commit suicide-by-cop. The officers merely witnessed an empty handgun holster, beer cans, and a notepad; common items that exist in many households across the country. The police also had knowledge of Case’s mental health and criminal history. Each of the police officers either knew or had previously interacted with Case, one had even known Case his whole life.[17] Specifically, the police officers all knew of “three or four” prior incidents where Case had threatened to commit suicide, “though he never followed through.”[18] And the police officers were aware of another former incident where Case attempted to provoke a suicide-by-cop situation.[19] Case’s prior suicide-by-cop provocations coupled with his threat to “shoot it out” if the police entered,[20] indicated he was likely alive. These circumstances alone should not establish a reasonable belief that an exigent circumstance existed. And even if the police held a reasonable belief that Case needed emergency aid or protection from an injury, the totality of these circumstances indicates that entry into Case’s home may have created the emergency itself.
Defenders of the Court’s decision would argue that the emergency aid exception permits officers to act amid uncertainty to prevent loss of life. Under this framework, as the majority opinion contends, the inquiry turns on whether officers reasonably believed aid might be needed at the time of entry, not on the outcome of that entry.[21] Therefore, the 911 report of a suicide threat, the possibility that Case was armed, and the risk of self-harm justified immediate action. The fact that the encounter ended violently, while tragic, does not retroactively invalidate the reasonableness of the officers’ belief that intervention was necessary.[22]
However, this reasoning ignores a vital consideration that Justice Sotomayor emphasized in her concurrence: the emergency aid exception should not justify warrantless entry that predictably escalates a mental health crisis into a use of force against the subject.[23] The officers waited outside Case’s home for forty minutes, knew Case’s history of repeated suicide threats without follow-through, and were warned that entry would provoke violence.[24] Despite this, they entered and ultimately shot the very person they were purportedly rendering aid to.[25] An exception grounded in preserving life should not permit officers to invoke the need to render aid as a justification for actions that unnecessarily result in foreseeable harm. By approving entry under these circumstances, the Court allowed speculative concern to override the Fourth Amendment’s protection of the home and sanctioned an intervention that converted a standoff into a shootout. This error is especially exacerbated given that Case was not only shot by the officers who entered to save his life but was then also charged with a felony based on the very encounter their warrantless entry created.
Ultimately, Case v. Montana represents more than a routine application of the emergency aid exception. It marks a quiet but consequential expansion of police authority to enter the home without a warrant. In applying the reasonable belief standard, the Case Court gave insufficient weight to the facts that undermined the argument of exigency or emergency and eroded the “totality of the circumstances” mode of analysis. In doing so, it lessened the requirements for warrantless entry to a point where an allegation of danger, coupled with observations of common household possessions, may suffice to override the Fourth Amendment’s protection of the home. Where prior cases emphasized observable, ongoing emergencies as a justification for immediate entry,[26] Case lowers that threshold by permitting warrantless entry based largely on speculative harm and ambiguous indicators, even when officers possess contextual knowledge that cuts against the existence of an actual emergency. The Court’s reasoning risks transforming a narrow exception meant to preserve life into an allowance for officers to enter private residences without warrants. This endangers the personal safety that the emergency aid exception and the Fourth Amendment seeks to protect and directly undermines the traditional recognition of the sanctity of the home.
[1] Case v. Montana, No. 24-2026 WL 96690, at *6 (2026).
[2] U.S. Const. amend. IV.
[3] Mincey v. Arizona, 437 U.S. 385, 392 (1978) (quoting Wayne v. United States, 318 F.2d 205, 212 (D.C. Cir. 1963)) (citation omitted).
[4] Brigham City v. Stuart, 547 U.S. 398, 400–01 (2006).
[5] Id. at 401.
[6] Id. at 404 (quoting Scott v. Illinois, 436 U.S. 128, 138 (1978)) (citation omitted).
[7] Id. at 406.
[8] Case v. Montana, No. 24-624, 2026 WL 96690, at *2 (2026).
[9] Id. During the 911 call, Case’s ex-girlfriend told the dispatcher that he was writing out a suicide note. Id.
[10] Joint Appendix at 22, Case v. Montana, (No. 24-624), 2025 WL 2262347, at *22.
[11] Id. at 3.
[12] Case v. Montana, No. 24-624, 2026 WL 96690, at *6 (2026). The Court further emphasized the objective reasonableness standard for the emergency aid exception established in Brigham City, as opposed to a probable cause standard. Id.
[13] Id.
[14] No pun intended.
[15] Brief for Petitioner at 7, Case v. Montana, (No. 24-624), 2025 WL 2262340, at *7.
[16] Case, 2026 WL 96690, at *6.
[17] Id.
[18] Id. at *7.
[19] Id.
[20] Joint Appendix, supra note 11, at 22.
[21] Case v. Montana, No. 24-624, 2026 WL 96690, at *6 (2026).
[22] Id.
[23] Id. at *8 (Sotomayor, J., concurring).
[24] Id. at *2–3 (majority opinion).
[25] Id. at *3.
[26] See, e.g.,Brigham City v. Stuart, 547 U.S. 398, 406–07 (2006) (noting that officers observed an ongoing fight that drew blood, with a reasonable belief that the fight would not subside on its own, thus creating a reasonable belief that aid needed to be rendered by the police).