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Oak Brook DUI defense lawyerOne of the most common questions asked about driving under the influence (DUI) is this: If you are arrested for DUI, should you submit to a breathalyzer test at the police station or refuse to blow?

As you will see, this is a difficult question to answer. Some experts argue that the less evidence you give the prosecution, the better; in other words, refuse the test if there is any chance you are over the legal limit. Others argue that it makes sense to take the test because, if you are below the legal limit, you could get the DUI charge dismissed altogether.

The purpose of this article is simply to help you understand the consequences of taking versus refusing a post-arrest breathalyzer test. This test is also referred to as an evidentiary test because the device and procedures are considered accurate enough to be used as evidence in court.

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Illinois DUI defense lawyerWhen the police see someone driving erratically, they often jump to the conclusion that the person must be driving drunk or high. In such cases, a police officer may be predisposed to find reasons to request a breathalyzer test and make a DUI arrest. By the time they are done with you, you may feel like you have already been convicted. But breathalyzer tests can be wrong and there are many ways to challenge the results.

Reasons a Breathalyzer Result Could Be Wrong

You will want to let your attorney know about any possible grounds on which the breathalyzer result could be challenged. Here are some examples.  

Waiting period. To ensure that you have not consumed anything that could cause a false reading, the police are supposed to observe you for 20 minutes prior to running an evidentiary breathalyzer test (the one done at the police station). Police procedural error is a common DUI defense strategy.

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