In Bryan v. United States (1949), the Supreme Court ruled on a case involving an individual who was convicted for failing to register and pay the occupational tax as required by federal law for those engaged in wagering activities. The defendant, Bryan, argued that he could not be prosecuted because his Fifth Amendment rights protected him from self-incrimination. He claimed that registering and paying taxes would essentially admit to illegal gambling activities since most states outlawed such practices at the time. However, the Supreme Court disagreed with this argument stating that if a person chooses to engage in an activity which is regulated by Congress under its constitutional powers then they are obligated to comply with regulations imposed on it even if it might incriminate them under state laws. Therefore, Bryan's conviction was upheld.

In the dissenting opinion for Bryan v. United States, Justice Jackson disagreed with the majority's decision to uphold Bryan's conviction on charges of tax evasion. He argued that the government had failed to provide sufficient evidence proving that Bryan willfully attempted to evade or defeat his income tax obligations. According to Justice Jackson, mere failure to pay taxes does not constitute a crime; there must be proof of an intentional act designed specifically for evading taxes. Furthermore, he criticized the majority’s reliance on circumstantial evidence and inference in reaching their verdict rather than direct evidence of intent - which was absent in this case according to him. He also expressed concern about potential misuse of such precedent by prosecutors against innocent taxpayers who might have made honest mistakes or omissions in their filings due simply out of ignorance or confusion regarding complex tax laws.