In the 1906 case Peterson v. Chicago, Rock Island and Pacific Railway Company, the U.S. Supreme Court ruled in favor of the railway company after a dispute over damages caused by a fire allegedly started by one of its trains. The plaintiff, Peterson, owned land near the railroad's tracks and claimed that sparks from passing locomotives had ignited his property on multiple occasions. He sought compensation for these incidents under an Iowa state law which held railroads liable for any fires caused by their operations without requiring proof of negligence. However, this state law was found to be inconsistent with federal laws governing interstate commerce - specifically those stating that railroads could only be held accountable if they were proven negligent or at fault in some way. As such, it was deemed unconstitutional as per the Supremacy Clause (Article VI) of U.S Constitution which states that federal law takes precedence over conflicting state laws. The court therefore concluded that while Peterson may have suffered damage due to fires potentially sparked by passing trains; he failed to provide evidence proving negligence on part of railway company hence his claim couldn't stand against them under existing federal regulations.

In the dissenting opinion for Peterson v. Chicago, Rock Island and Pacific Railway Company, it was argued that the majority's decision to hold a railway company liable for injuries sustained by an employee due to negligence of fellow employees contradicted established principles of common law. The dissent emphasized that under these principles, employers are not responsible for accidents caused by their employees' carelessness unless they were negligent in hiring or supervising them. They contended that this principle should apply even when state laws seem to suggest otherwise because federal courts must interpret state laws in line with common law traditions unless there is clear evidence indicating a departure from those traditions. Therefore, according to the dissenting justices, since there was no proof showing negligence on part of the employer in terms of hiring or supervision here, holding them accountable would be unjustified and against long-standing legal norms.