DUI Saturation Patrol – 20th (Lincoln) District 10 Aug 2017 The Chicago Police Department will be conducting a DUI Saturation Patrol in the 20th (Lincoln) District this weekend. The DUI Saturation Patrol will commence at 7 p.m. on Saturday, August 12, 2017 and end at 3 a.m. on Sunday, August 13, 2017. For more information, click here.