Every state in the country has an implied consent law. Basically, this law means that by accepting the privilege drive a vehicle, a licensed driver automatically consents to chemical or blood testing if a police officer has probable cause to believe that driver is under the influence of alcohol or drugs. Wisconsin’s implied consent law goes a step further. The state’s implied consent law contains a provision that stipulates that an incapacitated driver is “presumed not to have withdrawn” their consent of testing, even if they are not conscious.
This provision meant that police could conduct blood testing on a driver who was totally unconscious and unaware of what the police were doing. However, this will no longer be the case as the Wisconsin Supreme Court recently ruled that that provision is unconstitutional and violates the incapacitated driver’s Fourth Amendment protecting against unconstitutional search and seizure.
The Case
The unanimous decision was made by the justices in the case of State v. Prado. In December 2014, the defendant was severely injured in a car crash that killed the other driver. At the hospital, a police officer read the defendant, who was unconscious and intubated, the informing the accused script contained in the state’s implied consent law. Since she was unconscious, she did not answer the officer, however, because he thought he was within his rights under the law, he had a nurse obtain a blood sample without obtaining a warrant to do so first.
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