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DUI Breathalyzer Accuracy Texas

Reader’s Question:

What is the disagreement over the state of Texas’s breathalyzer reliability and accuracy? -

Juliette

Austin, TX

 

In, Texas the possible reliability errors our scientists argue on are too many to cover them all here. However, the following are some of the important ones: Neither the producer nor the DPS will let anyone, other than law enforcement personnel, to test either the machine’s accuracy or its reliability. It is usually implicit that for a procedure to be established as accurate and reliable in science, that it must be open for contention to the scientific community to test and re-test the procedure. This is not the situation with the Intoxilyzer. The manufacturer does not guarantee that the Intoxilyzer is well for any particular purpose. This fact clearly is an implicit admittance by the maker that its machine is not even guaranteed as accurate and reliable for breath testing. The Intoxilyzer is competent of breath preservation. However, our DPS intentionally fails to oblige the breath specimens to be saved. So, while re testing of preserved breath specimens could be done by an added accurate and reliable method known as gas chromatography, the charged persons are prevented from doing so. The breathalyzer’s design is based on the idea that every person tested is exactly the same. People are not the same!This is especially significant here with regard to ratios (the number of times an item appears in the blood vs. the number of times the same item appears in the breath). Persons with a lower blood/breath ratio than that assumed by the Intoxilyzer will be biased because the Intoxilyzer results will be unnaturally high.