Two Irving cousins have filed a lawsuit against the Texas Department of Public Safety, alleging state trooper Kelley Helleson searched inside their underwear during a routine traffic stop in Dallas in July. 

The trooper who pulled them over, David Farrell, says on tape he saw them throw a cigarette butt out the window while driving northbound on Highway 161 near Belt Line Lane and smelled marijuana in the car. No drugs were found and they were released with a warning.