Guam - The Guam Police Department's Highway Patrol will be conducting DUI checkpoints on Rt.1 from Naval Station to Andersen Air Force Base, Rt.4, Rt.10, Rt.8, Rt.16 and San Vitores in Tumon, starting at 9:00 pm, Thursday, through this Sunday at 2:00 am. According to GPD spokesperson Officer A.J. Balajadia, if inclement weather prevents the officers from setting up, the officers will convert to roving DUI checks.