Do you know whether the machine used to administer the breath test in your DUI case was properly certified? Most states, including Illinois, have regulations to ensure the accuracy of breath test machines. If the state relies on results from an improperly certified breath test machine in prosecuting a DUI case against you, it can greatly affect the outcome of your case and may provide grounds for avoiding or overturning a conviction.
Recently, the impact of certification issues was felt by prosecutors throughout Nebraska, when hundreds of DUI cases were affected when it was revealed the machines used for official breath tests were improperly certified. While Nebraska police officers administer preliminary breath tests when they suspect a person is driving under the influence of alcohol, many DUI cases rely on results from official breath test machines, which are usually in jails. State regulations require the official breath test machines to be tested regularly to ensure accuracy.
While defending a DUI charge against a client, a Nebraska criminal defense attorney noticed discrepancies in certifications for the official breath test machines. His discovery prompted an investigation which revealed that the individual responsible for testing and certifying the accuracy of breath test machines throughout the state had not actually tested the machines. Subsequently, all DUI cases relying on results from the official breath tests were affected. In cases that relied solely on the official breath tests, prosecutors lacked any evidence with which to convict the defendants. Moreover, the lack of certification greatly impacted the prosecution’s ability to prove cases in which it was alleged the defendant had committed an aggravated DUI, which requires proof the defendant had a blood alcohol concentration higher than 0.15 percent in Nebraska.