The case centers on Tyler McNeely, who was pulled over for speeding by a Missouri highway patrolman, and was taken to a hospital. About 25 minutes after McNeely was pulled over, a technician measured his blood-alcohol content at 0.154 percent, nearly twice the legal limit.
The Missouri police in the case argued they should not have to wait for approval to give a blood test, because alcohol dissipates quickly in the bloodstream, Reuters reports. In a decision earlier this year, the Missouri Supreme Court rejected that argument.
It ruled the blood test violated the Fourth Amendment, which protects against unreasonable searches and seizures. The court found there were no special circumstances to justify obtaining the blood test so quickly.
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