Caniglia v. Strom

During a domestic argument, Edward Caniglia placed a handgun on the table and asked his wife to shoot him. She left and later requested a police welfare check after being unable to reach him. Officers encountered Caniglia on his porch and called an ambulance, believing he posed a risk. Caniglia agreed to a psychiatric evaluation on the condition that his firearms not be confiscated. After he departed, officers entered his home without a warrant and seized two handguns. Caniglia sued, alleging a Fourth Amendment violation. Lower courts ruled for the officers based on the community caretaking exception. The Supreme Court unanimously vacated, holding that this exception does not permit warrantless searches and seizures inside a home.

The Supreme Court unanimously vacated the First Circuit's judgment and remanded the case. Justice Thomas delivered the opinion, holding that neither the holding nor logic of Cady justifies warrantless searches and seizures in the home. The Court emphasized that the home receives heightened Fourth Amendment protection and that community caretaking duties do not create an open-ended license to enter private residences without a warrant or genuine exigent circumstances.

Whether the "community caretaking" exception to the Fourth Amendment's warrant requirement, originally recognized for vehicle searches in Cady v. Dombrowski, extends to warrantless entries and seizures within a private residence.

The decision significantly limits police authority to conduct warrantless home entries under the guise of community caretaking, impacting the implementation and constitutionality of red flag laws that authorize firearm seizures without judicial pre-approval. It is widely viewed as a victory for Second Amendment advocates and civil liberties groups, reinforcing the sanctity of the home and the necessity of obtaining a warrant or demonstrating genuine exigent circumstances before intruding upon private property.