In the 1956 case of Peak v. United States, the Supreme Court ruled on a matter involving federal income tax law. The petitioner, Mr. Peak, had received payments from his former employer as part of an agreement reached upon his retirement in 1942 which were to continue until his death or until 1960 - whichever came first. However, he died before receiving all these payments and they continued to be paid out to his estate after his death. The issue at hand was whether these posthumous payments should be considered taxable income for Mr. Peak's estate or if they could instead be classified as non-taxable gifts under Section 22(b)(3) of the Internal Revenue Code. The court held that such amounts did not qualify as gifts but were rather compensation for services rendered by Mr. Peak during employment and thus subject to taxation under Section 61(a) of the Internal Revenue Code (IRC). This decision clarified how deferred compensation plans are treated with respect to federal income tax laws.

In the dissenting opinion for PEAK v. UNITED STATES, it was argued that the majority's decision to uphold Peak's conviction under Section 2(c) of the Universal Military Training and Service Act violated his Fifth Amendment rights. The dissenting justices believed that Peak had been denied due process because he was not given a fair opportunity to present his case before being convicted. They pointed out that while Peak had admitted to refusing induction into military service, he did so on religious grounds as a Jehovah’s Witness minister - an exemption recognized by law but ignored in this case. Furthermore, they criticized the majority for interpreting Section 2(c) too broadly and warned against setting a dangerous precedent where individuals could be punished without proper legal safeguards in place. The dissenters concluded by emphasizing their belief in upholding constitutional protections even during times of national crisis or war.