Quote:
Originally Posted by rabblerouser
How the **** do they know what his BAC was 30 minutes before the crash?
Prosecutors "allege"? More like "prosecutors assume..."
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It's not an assumption. There is a science to calculating BAC. Toxicologists, if they are provided with the relevant facts such as what food the person ate when the person drank and how much, what their BAC was at the time of testing, and other facts, can do a calculation to backtrack what the person's BAC was at the time of driving. In court, the toxicologist would testify as an expert that in his/her expert calculation, the BAC was in a range at the time of driving. This calculation won't be an exact BAC but the toxicologist can give a range.