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Report warns of Breathalyzer unreliability

Many people in New Jersey believe that Breathalyzers accurately reflect alcohol consumption and intoxication while driving, but human error and poor oversight means that many tests are unreliable. Judges in several states refused to accept more than 30,000 breath tests as evidence. The New York Times revealed these figures as part of an overall investigation into breath test usage nationwide. The newspaper found that incorrect adjustment and calibration could lead the devices to report results that were incorrect by as much as 40%.

Alcohol breath test false positives possible on ketogenic diet

Police officers in New Jersey often rely on the results of breath tests to determine the intoxication of drivers during traffic stops. Results that show a high blood alcohol concentration typically provide grounds for a DUI arrest on top of observations made by a police officer. Evidence has emerged, however, that breath test equipment could be prone to producing a false positive for people following a ketogenic diet.

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