The Seventh Circuit Court of Appeals has upheld the drug conviction of Robert L. Pennington, Jr., affirming the legality of two traffic stops that led to the discovery of drugs in his vehicle. The ruling, issued on September 4, 2026, affects Pennington, who was previously sentenced to ten years in prison following his arrest in January 2018. This decision clarifies the boundaries of police conduct during traffic stops and the legal standards for suppressing evidence obtained during such stops.
Pennnington's case stems from a series of events that began on January 23, 2018, when he was pulled over by Illinois State Police Master Sergeant Mark Flack for speeding on Interstate 57. After being issued a warning, Pennington was stopped again by Sergeant John Lillard, who had been alerted to Pennington's vehicle due to suspicions of drug possession. The second stop led to a canine sniff that revealed crack cocaine in Pennington's car.
The initial traffic stop occurred when Sergeant Flack observed Pennington driving eight miles per hour over the speed limit. During the stop, Flack became suspicious after learning about Pennington's criminal history, which included previous drug trafficking convictions. Although Flack allowed Pennington to leave with only a warning, he contacted another officer to keep an eye on Pennington, suspecting drug activity.
About an hour later, Sergeant Lillard observed Pennington committing another traffic violation and initiated a second stop. During this stop, Lillard conducted a dog sniff, which led to the discovery of drugs. Pennington subsequently moved to suppress the evidence obtained during the second stop, arguing that both stops were unlawfully prolonged and constituted a violation of his Fourth Amendment rights.
The district court denied Pennington's motion to suppress, stating that Lillard had independent reasonable suspicion to stop Pennington for the second traffic violation. The court found that the dog sniff did not unreasonably prolong the stop and that the total duration of the stop was reasonable, especially given technical difficulties Lillard encountered while writing the warning.
On appeal, the Seventh Circuit, led by Circuit Judge Pryor, affirmed the district court's decision. The court ruled, "The drugs Sergeant Lillard discovered during the second stop were sufficiently attenuated from Sergeant Flack’s unreasonably prolonged first stop." The court emphasized that the second stop was justified based on Lillard's independent observations and that the time elapsed between the two stops favored the government.
The court also addressed Pennington's claims of vindictive prosecution and selective enforcement, ultimately rejecting them. The ruling stated that Pennington did not demonstrate that he was treated differently than similarly situated individuals or that the officers acted with impermissible motives.
This ruling is significant as it clarifies the legal standards surrounding traffic stops and the use of canine searches. It reinforces the idea that officers can conduct additional checks during a traffic stop, provided they do not unreasonably prolong the stop beyond its original purpose. The decision also highlights the importance of independent reasonable suspicion in justifying subsequent stops.
Looking ahead, Pennington's conviction remains intact, and he is currently serving his sentence, which was commuted by former President Biden in 2025. However, the conviction and the terms of his supervised release still stand, meaning Pennington's legal battles may continue as he explores further options for appeal or other legal remedies.
As the legal landscape evolves, this case may set a precedent for how similar cases are handled in the future, particularly regarding the balance between law enforcement practices and individual rights during traffic stops.











