Johnson City Police Are Stepping Up Patrols This Memorial Day Weekend. According To The National Safety Council, An Estimated 439 People Will Be Killed On Roads Across The Country This Weekend. Lt. Scotty Carrier With The Johnson City Police Department Said Starting On Saturday Night, At Least Ten More Officers Will Be On Patrol Looking For Anyone Who May Be Driving Under The Influence. On The Saturday Of Last Year’s Memorial Day Weekend, Officers Made Three DUI Arrests In Johnson City.