According to Wisconsin’s implied consent law, upon driving a vehicle, you automatically consent to chemical testing by law enforcement if they suspect you are driving under the influence. If you refuse these tests, you will suffer added penalties.
Even if you fail such tests, there are multiple reasons to doubt their accuracy. The breath test machines used in Wisconsin rely on a number of assumptions to make their estimates, and all of those assumptions don’t necessarily apply to you. Other factors such as body temperature, breath temperature, breathing patterns, certain medical conditions and lab mistakes can result in inaccurate test results. The help of an experienced criminal defense attorney can aid you in challenging your chemical test results.