The drunk-driving cases provide the Court with something of a sequel to its ruling in 2013 in Missouri v. McNeely, which left the clear impression that, if police have enough time, they should get a warrant before taking a test of a suspected drunk driver. The Court ruled that the natural dissipation of alcohol in the bloodstream does not always amount to an emergency situation that permits a DUI test without a warrant.
In North Dakota, state laws bars a person from driving in the state if he or she refuses to submit to a chemical test, of blood, breath or urine, to determine alcohol concentration. It makes refusal to take such a test open to prosecution for a crime that carries the same punishment as a conviction for drunk-driving. In Minnesota, state law makes it a crime to refuse an officer’s request to take a chemical test for alcohol in the blood, if the individual has been validly arrested for drunk driving. The two cases involve either a blood or breath test.