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Contesting the Breath or Blood Test Salt Lake City, Utah

The biggest piece of evidence used by the prosecution in a Utah driving under the influence (DUI) case is the breathalyzer or blood test reading. Unfortunately, these aren't always 100% accurate. If you're currently facing a drunk-driving offense in Salt Lake City, don't base your decision to enter a plea on the results of your blood alcohol content (BAC) test. A trained DUI defense attorney can investigate your breath or blood reading when preparing a defense against your pending charges.

Challenging a Breathalyzer Test

The breathalyzer test is designed to examine the deep lung air and evaluate alcohol compounds in order to calculate how much alcohol is in your bloodstream. However, sometimes the machines can be tricked by other factors. For example, dental work can trap alcohol in the mouth, which could be read as deep lung air by the breath test machine. Even common medical conditions, such as diabetes, hypoglycemia, and acid reflux could inflate your reading, resulting in a drunk-driving charge.

The officer is also supposed to follow proper guidelines when administering the breathalyzer test to ensure that the results are accurate. For example, before giving the test, the officer should observe you for a 15-minute period to ensure that you don't consume anything or vomit. If he or she forgets the observation period, the test reading could be thrown out.

Blood Test Defenses

While a blood test may be more accurate than a breathalyzer, they are not without their problems. A blood test must be administered in a clinical or other sanitary setting by a certified professional. When storing the test, the right mix of chemicals must be used to ensure that the sample is well preserved. If the sample is not tested in a certain amount of time, it could deliver unreliable results.

Blood tests must also follow a specific chain of command. If an attorney reviews the paper trail to determine who handled the sample and any link in the chain is missing, this could be enough to have the blood test evidence thrown out of court.

Contact a DUI Lawyer to Prepare Your Defense

There are a number of potential defenses that could help you avoid a drunk-driving conviction. Our attorneys have undergone extensive training on the breathalyzer and blood tests, giving them the knowledge necessary to prepare your case.