Articles Tagged with Breath testing calibration

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When a machine is given the power to convict a person of a crime, we should be absolutely certain the machine is working properly. In Ohio, machines are used to measure the concentration of alcohol in the breath of drivers. A driver who operates a vehicle with a breath alcohol concentration of .080 or more is guilty of OVI, even if that person’s ability to drive was not impaired by the alcohol. As breath-testing machines have that much power, the accuracy and precision of the machines is critical, so they are subjected to a weekly instrument check. A recent case by an Ohio appellate court downplays the importance of those weekly instrument checks.

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SimulatorOver 20,000 DWI cases in New Jersey are being called into question due to problems with the recalibration of breath-testing machines.  According to New Jersey 101.5, Sgt. Marc Dennis skipped a critical step each time he recalibrated the machines.  Plaintiffs in a class-action lawsuit now seek to vacate thousands of convictions in which evidence was produced by those breath-testing machines.  Although this debacle occurred in New Jersey, it illustrates the importance of properly maintaining breath-testing machines in Ohio DUI/OVI cases.

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