Alderman v. United States

After the convictions of petitioners had been affirmed, and while their cases were pending here, it was revealed that the United States had engaged in electronic surveillance which might have violated their Fourth Amendment rights and tainted their convictions. A remand to the District Court being necessary in each case for adjudication in the first instance, the questions now before us relate to the standards and procedures to be followed by the District Court in determining whether any of the Government's evidence supporting these convictions was the product of illegal surveillance to which…