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Reasonable Suspicion-Expanded Traffic Stop

WISCONSIN LAW JOURNAL STAFF//August 10, 2026//

Reasonable Suspicion-Expanded Traffic Stop

WISCONSIN LAW JOURNAL STAFF//August 10, 2026//

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WI Court of Appeals – District III

Case Name: State of Wisconsin v. Billy J. Oldenburg

Case No.: 2025AP000550-CR

Officials: Stark, P.J., Hruz, and Gill, JJ.

Focus: Reasonable Suspicion-Expanded Traffic Stop

Oldenburg was convicted for possession of methamphetamine after a plea of no contest as a repeat offender. He then argued that police unlawfully expanded a stop for driving with a canceled license into a drug investigation without reasonable suspicion. The Court of Appeals disagreed, concluding that the totality of the circumstances justified the officer’s actions.

Before extending the stop, the officer observed Oldenburg visit a residence known for frequent drug activity, later appear at a second location associated with drug sales and overdoses, and engage in behavior the officer viewed as evasive, including quickly pulling into a driveway when followed by police. During the traffic stop, Oldenburg displayed significant signs of nervousness, gave inconsistent statements about his movements, and claimed to be coming from a location that conflicted with the officer’s observations. The officer also knew Oldenburg had a history of drug-related offenses.

Although the court acknowledged that factors such as nervousness, presence near drug houses, or prior drug history alone would not establish reasonable suspicion, it emphasized that courts must evaluate the totality of the circumstances. Taken together, the facts reasonably suggested Oldenburg was involved in illegal drug activity, allowing the officer to extend the stop, request a K-9 unit, and investigate further.

Affirmed.

Decided 08/04/26

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