In Fisher v. United States, the Supreme Court ruled on a case involving the interpretation of an act that allowed for the seizure and forfeiture of vehicles used to transport contraband goods. The defendant, Fisher, had his car seized by federal agents after they discovered illegal alcohol in it during Prohibition. He argued that since he was not using his vehicle at the time of discovery (it was parked), it should not be subject to seizure under this law. The court disagreed with Fisher's argument and upheld his conviction as well as the forfeiture of his vehicle. They reasoned that even though he wasn't actively driving when found with illicit substances, he still transported them there initially which constituted use under this law. This decision clarified how broadly "use" could be interpreted within context of laws regarding transportation and storage of illegal goods - including instances where vehicles are stationary but have been previously utilized for such purposes.

In the dissenting opinion for Fisher v. United States, Justice Murphy argued that the majority's decision violated fundamental principles of justice and fairness. He believed that a defendant should not be convicted based on evidence obtained through illegal means, in this case, an unlawful search and seizure by federal agents. According to him, such practices undermine citizens' constitutional rights under the Fourth Amendment which protects against unreasonable searches and seizures. Furthermore, he contended that allowing illegally obtained evidence to be used in court would encourage law enforcement officers to disregard individuals' constitutional rights with impunity since there would be no consequences for their actions. In his view, excluding unlawfully seized evidence from trial proceedings is essential in maintaining public trust in the legal system as well as ensuring its integrity and legitimacy.