In the state of Indiana, the serious offense of driving under the influence (DUI) can result in severe consequences. Chemical tests, such as breathalyzers and blood tests, are pivotal in determining the blood alcohol concentration (BAC) of a driver.
If you are facing a DUI charge, why should you know the science behind breathalyzers and blood tests? In addition, how can you challenge your chemical test results to impact the outcome of your case?
Breathalyzer tests
Breathalyzers measure the amount of alcohol in a driver’s breath. Indiana’s implied consent law requires a driver to comply with a breath test if a law enforcement officer has reasonable grounds to suspect they are intoxicated.
Blood tests
On the other hand, blood tests provide a direct measurement of the quantity of alcohol present in a driver’s bloodstream. In Indiana, a BAC of .08% or higher constitutes legal intoxication.
Challenging test procedures
Despite the perceived objectivity of chemical tests, a defendant can challenge the results in court. They may argue that there was an incorrect administration of the test or improper calibration of the equipment.
Additionally, they may challenge the qualifications of the administrator and question the timing of the test. They may also point out that certain medical conditions can affect the results.
Human error in handling and analysis
Moreover, human error can happen during the handling of the sample and analysis of the results. Thus, issues with the storage, transportation or analysis of the sample can potentially invalidate the results.
Facing your DUI charge
Chemical test results are a key piece of evidence in DUI cases. However, they are not always reliable. By seeking legal counsel, you may navigate the complexities of DUI laws, challenge the evidence and face your charge with more knowledge and confidence.