In the United States v. Fortier et al., 1951, the Supreme Court dealt with a case involving illegal liquor operations in violation of internal revenue laws. The defendants were charged with conspiring to defraud the U.S government by evading taxes on distilled spirits and operating an unregistered distillery. They appealed their convictions arguing that evidence used against them was obtained through unlawful search and seizure, violating their Fourth Amendment rights. However, the Supreme Court upheld their convictions stating that no constitutional rights had been violated as officers did not force entry into any premises but rather followed trails leading from public roads which led them to discover illicit distilleries in operation.

The dissenting opinion in the case of United States v. Fortier et al., 1951, argued that the majority's decision was based on a misinterpretation of the law and an overreach of federal authority. The dissenters believed that while it is within Congress' power to regulate interstate commerce, this particular case did not fall under such jurisdiction as there was no clear evidence showing any direct impact on interstate commerce by defendants’ actions. They also contended that even if there were some indirect effects, these would be too remote to justify federal intervention according to established legal principles. Furthermore, they disagreed with the majority’s view about conspiracy charges against defendants because they felt it lacked sufficient proof beyond reasonable doubt required for criminal conviction under U.S law. Therefore, in their view, both convictions should have been overturned due to lack of jurisdiction and insufficient evidence respectively.