In the case of United States v. Belt et al., 1942, the Supreme Court ruled on a dispute involving federal employees' compensation for overtime work. The defendants were employed by the U.S. government in a navy yard and claimed they were entitled to additional pay for working beyond their regular hours during World War II under the Act of December 22, 1942. However, this act was not applicable as it had been passed after these claims arose and did not apply retroactively according to its terms or legislative history. The court also considered whether an earlier law from June 28, 1940 could be applied but found that it only provided extra compensation for night work rather than general overtime labor. Furthermore, another statute from March 28, 1934 which granted additional payment for irregular or unscheduled overtime performed at night didn't cover their situation either because they worked regularly scheduled shifts. Therefore, despite acknowledging that these workers contributed significantly towards war efforts through their extended service hours in shipbuilding activities during wartime conditions; Justice Robert H Jackson delivered the opinion of unanimous court denying them any right to claim extra remuneration based on existing laws.

The dissenting opinion in the United States v. Belt et al., 1942, argued that the majority's decision to uphold a conviction for conspiracy to defraud the U.S. government was based on an overly broad interpretation of what constitutes fraud. The dissenters believed that while there may have been unethical behavior involved, it did not necessarily equate to criminal activity under existing laws regarding fraudulent conspiracies against the government. They contended that such a wide-ranging definition could potentially lead to abuses of power and unjust prosecutions by allowing almost any form of dishonesty or deceitful conduct towards federal authorities to be classified as fraud, even if no actual harm or loss occurred as a result. This viewpoint emphasized strict adherence to legal definitions and standards over moral judgments about right and wrong actions.