The South Dakota Supreme Court has upheld the conviction of a drunk driver who killed two adults and injured a young girl.
Now a state prison inmate, the driver says Highway Patrol troopers should have obtained a warrant before asking for a blood draw.
The state says a warrant is not necessary when a chaotic crime scene doesn't allow time to get a warrant, and the high court agrees.
For Victoria Wicks's previous coverage of state and federal DUI legal protocols, find links below.