Blood in the Mouth – Effect on Breath Tests

     A study published by the Journal of Clinical Forensic Medicine concludes that, although it my might an effect, blood in the mouth will not significantly alter the affects of a breath alcohol test.  There are detractors, who point out the issue is one of saliva and the unmistakeable reduction in BrAC that occurs when rinsing the mouth is permitted before a breath test. 

     This study found some statistically significant changes in breath alcohol concentration, but they were usually confined to third digit.  On the other hand, rinsing the mouth with water routinely leads to reductions of .03 to .04.  This is an issue where both scientists and attorneys who usually are employed by the defense have differences of opinion.
Written by Allen Trapp who is board certified by the National College for DUI Defense and the author of Georgia DUI Survival Guide Visit Website    

Written by Allen Trapp who is board certified by the National College for DUI Defense and the author of Georgia DUI Survival Guide Visit Website

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