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California Supreme Court

Nov. 25, 2013

State Supreme Court bars challenges to the accuracy of breathalyzer tests

Breathalyzer tests will continue in widespread use, the state Supreme Court ensured last week by rejecting defense lawyers' efforts to spotlight claims over the machine's accuracy.


By Emily Green


Daily Journal Staff Writer


Breathalyzer tests will continue in widespread use, the state Supreme Court ensured last week by rejecting defense lawyers' efforts to spotlight problems with the machine's accuracy.


Breathalyzers rely on the assumption that the conversion of alcohol in the breath to alcohol in the blood, known as the partition ratio, is the same for all people - even though it's not. Yet the state Supreme...

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