Q: How can breathalyzer test results be disputed in a commercial DUI case?

A:

In California, disputing breathalyzer test results in a commercial DUI case can involve several avenues based on the legal standards governing such evidence. One approach is to challenge the maintenance and calibration of the breathalyzer device used at the time of testing. Under California law, for breathalyzer results to be admissible in court, the device must be properly calibrated and maintained according to the manufacturer’s specifications. If there is evidence that the breathalyzer was not properly maintained or calibrated, this can be a strong basis for disputing the reliability of the results.

Another option for disputing breathalyzer test results is to question the conditions under which the test was administered. California law requires that breath tests be conducted in a specific manner, ensuring that the individual being tested has not drank alcohol, eaten, or vomited in a certain time frame before the test. If these procedures were not followed, this can be cited as a reason to challenge the test results. Moreover, the officer’s training and experience in administering breath tests can also be called into question; if the officer lacks proper training, it could further undermine the validity of the test results.

Additionally, it may be possible to present alternative evidence regarding the driver’s sobriety at the time of the alleged DUI offense. This can include eyewitness testimony, video evidence, or other forms of exculpatory evidence that might suggest that the driver was not impaired even if the breath test indicated a higher blood alcohol content. Legal counsel familiar with DUI cases can assist in developing a strategy tailored to the specifics of the case, ensuring that all potential avenues for disputing the breathalyzer results are explored.

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