ALTON - The Alton Police Department will begin an Independence Day traffic enforcement campaign June 19, 2026, targeting impaired drivers and seat-belt law violators in Alton as part of a statewide effort that runs through July 6, 2026, the department announced.The Alton campaign will cover three summer weekends leading up to and after the Fourth of July holiday. The Alton Police Department said it will focus on impaired and unbuckled drivers du…