Tennessee Department Of Safety And Homeland Security Commissioner Bill Gibbons Will Be Paying A Visit To The Tri Cities Area. The Commissioner And Colonel Tracy Trott Will Talk With State Troopers From The Highway Patrol’s Fall Branch Office Today To Discuss The Priorities Of The Department Including The Ongoing “Drive To Zero Fatalities” Statewide Traffic Safety Campaign. Commissioner Gibbons And Colonel Trott Are Scheduled To Visit The Fall Branch Office At Two O’clock.