Kaiser v. New York

The petitioner was convicted in a New York trial court in 1966 on three counts of conspiracy to extort, attempted extortion, and coercion. The case for the prosecution rested principally on the content of two telephone conversations between the petitioner and one of his coconspirators. Tapes and transcripts of those conversations were introduced at the trial over the petitioners objection that they had been obtained by an unlawful