Commonwealth of Kentucky v. Leecole Mitchell, 2019 SC 0087

Off-duty Officer Nathan Barks pursued and stopped a car after hearing tire screeching; LeeCole Mitchell was a right rear-seat passenger.
Backup Officer Eldar Agayev arrived ~2 minutes after the stop; officers checked IDs and Barks began a citation.
About 12–16 minutes into the stop officers discussed and then requested a canine unit; the canine arrived ~28–29 minutes after the stop.
After occupants were removed, Mitchell told officers the weapons in the car were his; officers recovered two pistols and a rifle; Mitchell was charged as a convicted felon in possession of a handgun.
Mitchell moved to suppress, arguing the traffic stop was impermissibly prolonged for an unrelated canine sniff; the trial court denied the motion but made limited factual findings and did not resolve whether officers had independent reasonable suspicion.
The Court of Appeals reversed, holding the stop was impermissibly extended and that the Commonwealth was precluded from arguing reasonable suspicion; the Kentucky Supreme Court affirmed the extension ruling, reversed the preclusion ruling, and remanded for factual findings and briefing on reasonable suspicion.

Issue	Commonwealth's Argument	Mitchell's Argument	Held
Whether the traffic stop was impermissibly extended to await a canine sniff	Delay was related to processing and instruction to complete citation; not a willful extension to await dog	Officers deferred completion of the stop to summon a canine unrelated to the traffic mission	Stop impermissibly extended; Court of Appeals affirmed on this point
Whether the Commonwealth is precluded from arguing officers had reasonable, articulable suspicion to justify the extension	Not precluded; Commonwealth introduced evidence and argued reasonable suspicion at the suppression hearing	Precluded because trial court made no specific findings and Commonwealth failed to request them	Commonwealth not precluded; Kentucky Supreme Court reversed the Court of Appeals on preclusion
Whether the trial court made sufficient findings and allowed briefing on reasonable-suspicion issue (RCr 8.27)	Record and hearing were sufficient for de novo review	Trial court made sparse findings and denied briefing request, leaving insufficient record for review	Remanded for parties to brief reasonable-suspicion issue and for the trial court to enter written findings and conclusions of law

Rodriguez v. United States, 575 U.S. 348 (2015) (even de minimis delays during a traffic stop are unlawful absent independent justification)
Davis v. Commonwealth, 484 S.W.3d 288 (Ky. 2016) (test for impermissible extension of a traffic stop)
Smith v. Commonwealth, 542 S.W.3d 276 (Ky. 2018) (canine sniff impermissibly delayed stop when officer abandoned traffic-stop tasks)
Turley v. Commonwealth, 399 S.W.3d 412 (Ky. 2013) (reasonable, articulable suspicion required to extend a stop beyond its mission)
Illinois v. Caballes, 543 U.S. 405 (2005) (a seizure justified by issuing a ticket may become unlawful if prolonged beyond mission)
Commonwealth v. Bucalo, 422 S.W.3d 253 (Ky. 2013) (probable cause supports lawful traffic stop)
Commonwealth v. Fields, 194 S.W.3d 255 (Ky. 2006) (appellate court may affirm a trial court on any ground supported by the record)
Knowles v. Iowa, 525 U.S. 113 (1998) (officer conduct must be reasonably related to the stop's mission)