United States v. Taylor, 963 F. Supp. 2d 595

On Oct. 24, 2012, Charleston police stopped Marcus Taylor for driving conduct; officers suspected drug activity based on observed porch traffic at his home and Taylor’s nervous behavior.
During the stop, Taylor twice refused entry to his vehicle and repeatedly asked for a lawyer; officers nevertheless opened the car to “permeate” it (entered, rolled up windows, turned key to ON, ran fan) to disperse odors for an incoming drug-detection dog.
K-9 Jux later alerted during an exterior sniff; officers then searched the vehicle, found a handgun under the driver’s seat and $93,157 in cash; Taylor was a felon on supervised release and indicted for felon-in-possession.
Taylor moved to suppress all evidence from the stop, arguing (1) the initial stop lacked probable cause, (2) the detention was unreasonably prolonged, (3) the warrantless permeation entry violated the Fourth Amendment under Jones and Jardines, and (4) the dog sniff record was unreliable.
The court previously rejected the stop/prolongation challenges but held in a May 14, 2013 opinion that the warrantless permeation entry was an unreasonable search under Jones and Jardines.
The court now addresses the remedy: whether to apply the exclusionary rule to suppress the gun (and related evidence) seized after the unconstitutional permeation.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Validity of initial traffic stop	Taylor: stop lacked probable cause	Gov: officers had reasonable suspicion from near-crash	Court previously held stop lawful (denied)
Whether detention was unreasonably prolonged	Taylor: officers converted stop into investigation without reasonable suspicion	Gov: actions were routine and correlated to K-9 deployment	Court previously held detention not unlawfully prolonged (denied)
Whether permeation (warrantless entry + HVAC manipulation) was a Fourth Amendment search	Taylor: permeation was a physical intrusion into private property akin to Jones/Jardines	Gov: permeation is routine, noninvasive, and intended to aid a lawful canine sniff	Court held permeation was an unreasonable search violating the Fourth Amendment (granted suppression as to permeation-derived evidence)
Remedy: whether to exclude fruits of the permeation search	Taylor: exclusion necessary to deter unconstitutional, systemic permeation practice	Gov: exclusion is harsh; officers acted in good faith under department practice	Court found department practice showed systemic negligence/recklessness and ordered suppression of firearm and photos; other suppression motions denied

United States v. Jones, 132 S. Ct. 945 (2012) (installation/physical intrusion on vehicle to obtain information constitutes a Fourth Amendment search)
Florida v. Jardines, 133 S. Ct. 1409 (2013) (using a trained dog on private curtilage after physical entry is a search; emphasizes trespass and curtilage protections)
Davis v. United States, 131 S. Ct. 2419 (2011) (exclusionary rule requires weighing deterrent benefits against social costs; good-faith reliance limits exclusion)
Carroll v. United States, 267 U.S. 132 (1925) (vehicle exception requires probable cause to search automobiles)
New York v. Class, 475 U.S. 106 (1986) (momentary reaching into vehicle interior is a search; limits on permissible intrusions without probable cause)
Bond v. United States, 529 U.S. 334 (2000) (physical manipulation of luggage by officer violated Fourth Amendment; invasive handling differs from mere handling)
Mapp v. Ohio, 367 U.S. 643 (1961) (exclusionary rule bars introduction of evidence obtained by Fourth Amendment violations)
United States v. Leon, 468 U.S. 897 (1984) (good-faith exception to exclusionary rule when officers reasonably rely on a warrant)
Herring v. United States, 555 U.S. 135 (2009) (exclusionary rule inappropriate where police misconduct is negligent and lacks systemic culpability)