By Stanley J. Broskey, PhD Forensic Scientist, Bucks County, Pa.   DWI prosecutions depend upon the assumption that everyone’s blood-breath ratio is the same. This assumption is enacted into law, along with a specific blood-breath ratio. In some countries, such as the United States, that ratio is 2100:1; in some European countries, such as the … Continue reading The Problem with The 2100:1 Blood to Breath Ratio