I’ve posted repeatedly in the past about the multitude of problems with breath-alcohol machines – including the disturbing fact that they are non-specific for ethyl alcohol.  In fact, they don’t actually measure alcohol, but rather the presence of the methyl group in the compound.  See Why Breathlayzers Don’t Measure Alcohol. Unfortunately, there are thousands of compounds that [...]

Read the complete post at http://www.duiblog.com/2009/01/21/driving-under-the-influence-ofice-cream/