State Police in Fredonia picked up a 23-year-old Fredonia woman on a criminal warrant while conducting a roadcheck on Route 5 in the town of Dunkirk on Saturday. Troopers say a warrant check revealed that Christin Tibbetts was wanted by the Chautauqua County Sheriff's Office for aggravated unlicensed operation in the 3rd degree. They transported Tibbetts to the Sheriff's substation in Hanover they were turned over to a Sheriff's deputy.