The Supreme Court will decide whether a police officer who stops a suspected drunk driver can force him or her to take a breath test or have blood drawn at a hospital.
Judges across the nation are split over whether forcing someone to undergo a blood test constitutes an "unreasonable search" prohibited by the 4th Amendment.
The decision, due early next year, will define the powers of the police and the rights of motorists who are suspected of driving while intoxicated.
