William O. Douglas

“ It was done so that an objective mind might weigh the need to invade that privacy in order to enforce the law. The right of privacy was deemed too precious to entrust to the discretion of those whose job is the detection of crime and the arrest of criminals. Power is a heady thing; and history shows that the police acting on their own cannot be trusted. ”

“ It marks the right of privacy as one of the unique values of our civilization and, with few exceptions, stays the hands of the police unless they have a search warrant issued by a magistrate on probable cause supported by oath or affirmation. ”

“ We cannot allow the constitutional barrier that protects the privacy of the individual to be hurdled so easily. Moreover, when we move to the scene of the crime, the reason for the absence of a search warrant is even less obvious. When the officers heard the adding machine and, at the latest, when they saw what was transpiring in the room, they certainly had adequate grounds for seeking a search warrant. ”