In the 1969 case Minor v. United States, the Supreme Court ruled on a matter involving tax evasion and conspiracy charges against two individuals, Minor and his wife. The Minors were charged with conspiring to defraud the U.S government by evading income taxes through a complex scheme of diverting funds from their business into personal accounts. They appealed their conviction arguing that there was insufficient evidence to support it and that certain evidence should have been suppressed as it was obtained in violation of Fourth Amendment rights against unreasonable searches and seizures. However, the Supreme Court upheld their convictions stating that there was ample circumstantial evidence supporting them including unexplained wealth accumulation during years they reported losses or minimal profits for tax purposes. Additionally, regarding Fourth Amendment claims, while acknowledging some irregularities in obtaining bank records used as evidence against them; these did not amount to constitutional violations warranting suppression of this crucial evidentiary material.

The dissenting opinion in the case of Minor v. United States argued that the majority's interpretation of the law was too broad and could potentially lead to unjust outcomes. The dissenters believed that while it is important to hold individuals accountable for their actions, it is equally crucial not to punish them excessively or unfairly. They contended that by interpreting the law so broadly, the court risked punishing people who may have been unaware they were committing a crime or whose involvement in criminal activity was minimal at best. Furthermore, they expressed concern about potential violations of defendants' constitutional rights under such an expansive interpretation of conspiracy laws.