In An Ongoing Effort To Reduce The Dangerous Problem Of Driving Under The Influence And Resulting In Crashes, Injuries, And Deaths, The Kingsport Police Department Will Be Conducting A Sobriety Checkpoint On Friday, September 10Th. The Checkpoint Will Be Held At An Undisclosed Time And Location Inside The City Limits Of Kingsport. Tennessee Dui Laws Apply Not Just To Drinking Alcohol, But To Ingesting Any Substance That Impairs The Driver’S Ability To Safely Operate A Motor Vehicle, Including Illegal Drugs, Over-The-Counter Medications As Well As Prescription Drugs.