What happens if a DWI suspect submits to a blood alcohol concentration (BAC) test but that test is completed several hours after arrest? Whereas Minnesota law criminalizes a motorist who is driving with a BAC of .08 or more at the time of driving—”or as measured within two hours of the time of driving, operating, or being in physical control” of a vehicle—it is still possible to obtain a conviction if the test was conducted after this two hour window.