Colorado DUI Defense: Challenging Blood Test Evidence

While breath tests are commonly used to provide evidence of driver intoxication (defined in Colorado by a blood alcohol content of .08 percent or above), drivers arrested on suspicion of DUI may be required by law to cooperate with blood alcohol tests, which are considered more reliable than other sources of evidence.

Since DUI charges and penalties are determined based on a driver's blood alcohol concentration (BAC), the accuracy of test results is essential to the fair treatment of the accused, and challenging test evidence can be an important part of an effective defense against DUI charges. Furthermore, since a driver's refusal to take a blood alcohol test can lead to mandatory license suspension in Colorado — and since refusal can be a function of a driver's poor treatment by law enforcement — it is essential to have the help of a skilled criminal defense attorney if you or a loved one is the subject of a DUI case involving blood testing. Contact us to speak to an experienced lawyer about your case.

Strategic Drunk Driving Defense Representation

As part of an aggressive but carefully planned defense against DUI charges, our attorneys can challenge field sobriety tests, breath tests and blood alcohol tests, questioning all the evidence and working to make sure the burden of proof rests on the prosecution. With regard to blood alcohol tests and testing procedures, our inquiry typically includes:

  • Questioning the qualifications of all law enforcement and laboratory staff who come in contact with test evidence
  • Challenging the methods of test administration and the timing of testing in relation to the time of arrest
  • Investigating the soundness and compliance of the testing equipment and the chemicals used

Denver Blood Alcohol Test Defense Lawyers

Contact Pearson & Paris, P.C., at 303-872-4719 or toll free at 888-725-2609 for an initial consultation at reduced rates. We will be happy to answer your questions about how to deal with DUI charges.