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Arizona Supreme Court holds that DUI breath testing is really just DUI breath guessing

The Arizona Daily Star article reports that a unanimous Arizona Supreme Court decision is giving DUI Defendants new tools like logic, math, and science in defending DUI breath test cases. The Arizona Supreme Court held that DUI defendants may present evidence of variables such as breath temperature and hematocrit levels which make it impossible to know the exact breath level in a person without knowing these variables.  Current DUI Breath Test technology just guesses at these values making the true blood alcohol level undeterminable with precision.