If you have been suspected of driving under the influence of alcohol, you have almost certainly faced a breath testing device at some point or another. Over the past half century, they have become almost ubiquitous symbols of law enforcement, and with the invention of the ignition interlock exchange, they are even being used to enforce drunk driving penalties in some areas. You would think that such an important law enforcement tool would be rigorously researched and designed to be as accurate as a blood test, or more so, based on the way they are relied upon, but that is not actually the case.
While most people in New Hampshire try not to drink too much alcohol before getting behind the wheel, some drivers have a more difficult time avoiding intoxication. A condition called auto-brewery syndrome causes drunkenness without any alcohol consumption. Patients with this condition have found themselves accused of drunk driving when they have not had a single drink. Understanding how the syndrome works can help drivers determine if they are at risk for being falsely accused of a DUI.