An Illinois state trooper has been found guilty of misdemeanor aggravated assault during a roadside search in East St. Louis. Corey Alberson of Swansea faced a felony aggravated battery charge for pulling down a motorist's pants and examining his buttocks with a flashlight. The driver wasn't charged with any violations. A St. Clair County judge ruled Monday that Alberson was guilty of the lesser charge. Sentencing is scheduled for Oct. 22. Anthony D. Campbell testified at a bench trial earlier this month that he felt "insulted" and "disrespected" by the encounter with Alberson and a second trooper. The troopers testified that they stopped Campbell based on an informant's tip about a possible drug delivery. No drugs were found on Campbell, who has no criminal record.