 The Ohio Supreme Court affirmed, ruling that the police must end a traffic stop by informing a motorist that they are free to leave before attempting to engage the motorist in a consensual interrogation or search their car.The U.S. Supreme Court agreed to review the case.Chief Justice William Rehnquist, writing for the majority, stated that "The touchstone of the Fourth Amendment is reasonableness," and reasonableness is measured by examining the totality of the circumstances.