By
The Associated Press
WASHINGTON - In a significant ruling on the use of police power, the Supreme Court struck down random roadblocks intended for drug searches, saying they are an unreasonable invasion of privacy under the Constitution.
Law enforcement in and of itself is not a good enough reason to stop innocent motorists, the majority concluded yesterday in the first major ruling of the new term.
"Because the checkpoint program's primary purpose is indistinguishable from the general interest in crime control, the checkpoints contravened the Fourth Amendment," which protects against unreasonable searches and seizures, Justice Sandra Day O'Connor wrote.
The court's three most conservative justices dissented, saying the roadblocks Indianapolis set up in high-crime neighborhoods served valuable public safety and crime-fighting goals. Chief Justice William Rehnquist and Justices Antonin Scalia and Clarence Thomas dissented.
"Efforts to enforce the law on public highways used by millions of motorists are obviously necessary to our society," Rehnquist wrote. "The court's opinion today casts a shadow over what has been assumed ... to be a perfectly lawful activity."
Thomas joined the entire nine-page dissent. Scalia agreed with Rehnquist only in part.
Justice Anthony Kennedy, like O'Connor a sometime "swing vote" between the court's ideological poles, sided with her in the majority.
The American Civil Liberties Union had sued on behalf of two detained motorists, and the 7th U.S. Circuit Court of Appeals in Chicago eventually found the practice was probably unconstitutional.
"Today's decision sends a clear message that even a conservative court is not willing to countenance the serious erosion of our basic constitutional rights," said Steven Shapiro, ACLU's legal director.
O'Connor stressed that the high court ruling does not affect other police roadblocks such as border checks and drunken-driving checkpoints, which have already been found constitutional.
But the reasoning behind those kinds of roadblocks - chiefly that the benefit to the public outweighs the inconvenience - cannot be applied broadly, O'Connor wrote.
"If this case were to rest on such a high level of generality, there would be little check on the authorities' ability to construct roadblocks for almost any conceivable law enforcement purpose," the opinion said.
During oral arguments in October, several justices seemed troubled by the notion that by unwittingly driving into the checkpoint, a motorist is open to a criminal investigation that presumably would not have happened otherwise.
Others questioned whether the use of drug-sniffing dogs was heavy-handed. The dogs were led around the car's exterior at every stop.
The case is one of several the court has taken recently that examine the limits of police powers to hunt for drugs.
