WASHINGTON (AP) -- The Supreme Court on Thursday placed new limits on state laws that make it a crime for motorists suspected of drunken driving to refuse alcohol tests.
The justices ruled that police must obtain a search warrant before requiring drivers to take blood alcohol tests, but not breath tests, which the court considers less intrusive.
The ruling came in three cases in which drivers challenged so-called implied consent laws in Minnesota and North Dakota as violating the Constitution's ban on unreasonable searches and seizures. State supreme courts in each state had upheld the laws.
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