UNITED STATES V. LEON: PROLONGED TRAFFIC STOPS AND THE FOURTH AMENDMENT.

The article focuses on the Tenth Circuit Court of Appeals’ 2023 decision in *United States v. Leon*, which addresses the limits of law enforcement discretion under the Fourth Amendment during prolonged traffic stops. The court ruled that officers must present clear and specific facts establishing reasonable suspicion to justify extending a stop beyond its original purpose, emphasizing that vague or broad indicators insufficiently exclude innocent travel. The decision highlights the “Rodriguez moment” exception, allowing stop extensions when officers diligently pursue new suspicions, but underscores the need for a high threshold to prevent constitutional violations. The ruling carries broader implications for stare decisis, the balance between effective policing and individual rights, and societal expectations regarding law enforcement authority during routine traffic stops.