Police can enter a home without a warrant under the emergency aid exception to the Fourth Amendment’s warrant requirement. Also called the emergency assistance exception or emergency doctrine, this exception permits warrantless home entry when officers have an objectively reasonable basis to believe someone inside is seriously injured or imminently threatened with serious injury. On January 14, 2026, the United States Supreme Court decided Case v. Montana, reaffirming that probable cause is not required for emergency aid entry while rejecting a lower reasonable-suspicion approach. This guide explains when warrantless entry into a home may be lawful, what Case v. Montana changed, and how North Carolina courts will likely apply the doctrine.

Written by Bill Powers, a North Carolina criminal defense lawyer with 33 years (since 1992) of courtroom experience. Bill is a Board-Certified Criminal Law Specialist through the National Board of Trial Advocacy / National Board of Legal Specialty Certification and a former President of the North Carolina Advocates for Justice. Powers Law Firm represents clients in criminal, traffic, and impaired driving matters in the Charlotte area and accepts select serious felony driving and vehicular homicide cases across North Carolina.

Part I: Search Warrants | Constitutional Foundation