Tennessee is one of the 13 states where motorists who have been suspected of driving under the influence can face criminal sanctions for their refusal to take a breath test. Motorists from North Dakota and Minnesota filed lawsuits challenging mandatory breath test laws, but their efforts to convince district and appeals court judges were unsuccessful. However, the motorists did not give up, and arguments made by their attorneys were heard by the U.S. Supreme Court on April 20.
Tennessee residents may know that getting behind the wheel after a night of drinking is a bad idea, but they might not realize how much even small amounts of alcohol can impair drivers. Motorists generally face drunk driving charges when toxicology testing reveals blood alcohol levels of .08 percent or higher, but data from the Centers for Disease Control and Prevention indicates that the driving skills of a man weighing 160 pounds would begin to decline after consuming just two drinks in an hour.