United States v. Retta, 2:15-cr-00009

Officers ran a Saturn's plate in a high-crime area and learned the registered owner (Steven Ricks) had outstanding misdemeanor traffic warrants.
A black male (later identified as Yared Retta) returned to the Saturn, fled from officers when approached, and discarded the car keys.
Officers chased and detained Retta inside the curtilage of a nearby home; he was handcuffed, placed in a patrol car, and detained about six-and-a-half hours.
During detention, officers interviewed Retta without Miranda warnings, obtained purported consent to search the car, conducted a K-9 sniff of the vehicle exterior, then used a tow truck to open and search the vehicle; a gun was found.
Retta, a parolee with prior burglary convictions, was charged as a felon in possession of a firearm and moved to suppress the gun, arguing the seizure and searches were unreasonable and disproportionate to suspected misdemeanors/parole violation.
The magistrate judge found constitutional violations in the arrest and prolonged search but denied suppression because objectively there was probable cause to search the car (parolee who fled and discarded keys).

Issue	Plaintiff's Argument	Defendant's Argument	Held
Was Retta's detention an arrest and was it lawful?	Government contends detention was reasonable given flight and parole concerns.	Retta argues detention was an arrest lacking probable cause (only reasonable suspicion).	Court: Detention was a formal arrest and unlawful—officers lacked probable cause to arrest.
Was the scope/duration of the post-stop investigation reasonable?	Government defends extended detention, K-9 sniff, tow and search as reasonable.	Retta argues six-and-a-half-hour detention and dog sniff/tow were disproportionate to suspected misdemeanor/parole violation.	Court: Search duration and scope were unreasonable and disproportionate to suspected offenses.
Was Retta's consent to search voluntary?	Government says Retta consented to search.	Retta says consent was involuntary (in custody, handcuffed, not Mirandized, unclear signing).	Court: Government failed to meet burden; consent not shown voluntary.
Should the firearm be suppressed under the exclusionary rule?	Government: Warrantless search was justified by probable cause (discarded keys, parolee status); later warrant valid.	Retta: Exclusion required because evidence flowed from unlawful arrest/search and unreliable dog sniff/invalid warrant.	Court: Exclusion not warranted—objective facts (parolee who fled and discarded keys) gave probable cause for a warrantless vehicle search, so firearm admissible.

United States v. Leon, 468 U.S. 897 (exclusionary rule limitations / good-faith analysis)
Whren v. United States, 517 U.S. 806 (objective-reasonableness / officers' subjective intent immaterial)
Illinois v. Gates, 462 U.S. 213 (probable cause as a "fair probability")
Carroll v. United States, 267 U.S. 132 (automobile exception to warrant requirement)
Rodriguez v. United States, 575 U.S. 348 (traffic-stop scope/duration; dog sniff cannot prolong stop)
Samson v. California, 547 U.S. 843 (diminished Fourth Amendment protections of parolees)
Terry v. Ohio, 392 U.S. 1 (reasonable suspicion standard for stops)
Franks v. Delaware, 438 U.S. 154 (warrant invalidation for false statements/omissions)
Atwater v. City of Lago Vista, 532 U.S. 318 (arrest and proportionality principles)
Hensley v. Municipal Court, 469 U.S. 221 (stops based on warrants / reasonable suspicion vs. probable cause)