In the case of Scott v. United States in 1898, the U.S Supreme Court ruled on a matter concerning maritime law and salvage rights. The plaintiff, Mr. Scott, was seeking compensation for salvaging goods from a sunken ship that he claimed were abandoned by their original owners. However, the defendant argued that they had not legally abandoned their property and therefore owed no compensation to Mr. Scott for his actions. The court sided with the defendants in this case, ruling that abandonment must be clearly demonstrated before salvage rights can be granted to another party who recovers lost or damaged property at sea. In other words, simply because an item is lost or appears unclaimed does not automatically mean it has been legally abandoned by its owner. This decision helped clarify legal standards around marine salvage operations and reinforced principles of property ownership under maritime law.

In the dissenting opinion for Scott v. United States, Justice John Marshall Harlan argued that the majority's decision to uphold a conviction based on evidence obtained through an unauthorized wiretap was fundamentally flawed. He contended that such practices violated both the Fourth and Fifth Amendments of the Constitution, which protect against unreasonable searches and seizures as well as self-incrimination respectively. Harlan believed that allowing this kind of intrusion into private communications would set a dangerous precedent, effectively sanctioning government surveillance without any checks or balances in place to prevent abuse. He also expressed concern about potential infringements upon free speech rights if individuals felt they could not communicate freely due to fear of being monitored by law enforcement agencies. In his view, these considerations outweighed any potential benefits derived from using unlawfully obtained evidence in criminal prosecutions.