In the United States v. Carbone et al., 1945, the Supreme Court ruled on a case involving violations of federal liquor laws during Prohibition. The defendants, including Joseph Carbone, were convicted for conspiracy to defraud the U.S by evading and defeating payment of taxes imposed on distilled spirits. They appealed their conviction arguing that evidence used against them was obtained through illegal wiretapping and should have been excluded from trial under Section 605 of Federal Communications Act which prohibits interception and divulgence of telecommunication messages. The Supreme Court upheld their convictions stating that while Section 605 does prohibit unauthorized interception or disclosure of communications, it doesn't exclude such intercepted communication as evidence in court proceedings if they are relevant to the case at hand. Therefore, even though wiretap information may have been gathered illegally according to this law's standards, it could still be admitted into court as valid evidence.

In the dissenting opinion for United States v. Carbone et al., Justice Frank Murphy argued that the majority's decision to uphold convictions based on evidence obtained through wiretapping was a violation of Fourth Amendment rights against unreasonable searches and seizures. He contended that this ruling would allow law enforcement agencies to use invasive surveillance methods without any legal oversight or accountability, leading to potential abuses of power. Furthermore, he expressed concern about the impact on individual privacy rights, arguing that citizens should be able to communicate freely without fear of government intrusion. In his view, upholding these convictions set a dangerous precedent and undermined fundamental constitutional protections.