In the case of Southern Railway Company v. Campbell in 1915, the U.S Supreme Court ruled on a dispute involving an injured railway worker and his employer. The plaintiff, Mr. Campbell, was injured while working for Southern Railway Company due to alleged negligence by the company's management. He sued for damages under Alabama state law but also claimed that he had rights under federal law because he was engaged in interstate commerce at the time of his injury. The main issue before the court was whether or not federal laws applied to this case since it involved a railroad employee who worked across state lines. The Supreme Court held that even though Mr.Campbell’s work did involve some aspects of interstate commerce, most of his duties were local in nature and thus fell under Alabama's jurisdiction rather than federal jurisdiction. Therefore, although Mr.Campbell could sue for damages based on Alabama state law regarding employer negligence leading to workplace injuries; he could not claim additional protections or benefits provided by federal laws related specifically to workers involved directly with interstate commerce.

In the dissenting opinion for Southern Railway Company v. Campbell, it was argued that the majority's decision to uphold a damages award against the railway company was inconsistent with established principles of liability law. The dissenting justices believed that there wasn't sufficient evidence presented at trial to prove negligence on part of the railway company which led directly to Mr. Campbell’s injury and subsequent death. They contended that while an accident occurred involving one of its trains, this alone did not establish culpability without clear proof of negligent action or omission by the company or its employees contributing directly to said accident. Furthermore, they disagreed with allowing speculative testimony about potential causes for derailment as evidence in court proceedings because such conjecture does not meet standards required for legal proof beyond reasonable doubt in civil cases concerning negligence leading to personal harm or fatality.