In the 1914 case of Bosley v. McLaughlin, the U.S Supreme Court examined a dispute involving labor laws in California. The plaintiff, Bosley, was an employer who challenged a fine imposed by defendant McLaughlin, Labor Commissioner of California at that time. The fine was levied because Bosley had allegedly violated state labor laws by employing women for more than eight hours per day and more than six days per week without their written consent. In his defense, Bosley argued that these restrictions were unconstitutional as they interfered with freedom to contract under the Fourteenth Amendment's Due Process Clause. The Supreme Court disagreed with this argument and upheld the constitutionality of such regulations on working conditions for women workers in order to protect their health and welfare. They reasoned that states have broad powers to regulate employment contracts when it comes to protecting public health or safety - including limiting work hours for certain groups like women or children if deemed necessary based on reasonable grounds.

The dissenting opinion in the Bosley v. McLaughlin case argued that the majority's decision to uphold a California law requiring barbershops to close on Sundays was inconsistent with previous rulings of the Court and violated constitutional principles. The justice contended that Sunday closing laws, which were originally enacted for religious purposes, should not be upheld under secular justifications such as promoting health and welfare. He pointed out that there was no evidence showing barbering is more harmful or strenuous than other occupations exempted from the law like manufacturing or mining. Furthermore, he emphasized that it is unfair to single out one occupation without reasonable grounds while allowing others to operate freely on Sundays. Therefore, he believed this selective enforcement constituted an arbitrary interference with personal liberty and property rights protected by due process clause of Fourteenth Amendment.