Potter Stewart,
Elkins v. United States — Opinion of the Court
“ It must always be remembered that what the Constitution forbids is not all searches and seizures, but unreasonable searches and seizures. Without pausing to analyze individual decisions, it can fairly be said that in applying the Fourth Amendment this Court has seldom shown itself unaware of the practical demands of effective criminal investigation and law enforcement. Indeed, there are those who think that some of the Court's decisions have tipped the balance too heavily against the protection of that individual privacy which it was the purpose of the Fourth Amendment to guarantee. ”
