In Perini v. Colosimo (1969), the United States Supreme Court addressed a dispute over fishing rights in Lake Erie, specifically whether Ohio or Pennsylvania had jurisdiction over certain waters. The case arose when an Ohio resident, Anthony J. Colosimo, was arrested and fined by Pennsylvania authorities for fishing without a license in what he claimed were Ohio waters of Lake Erie. He sued the arresting officer from Pennsylvania's Fish Commission, Louis A. Perini, arguing that his arrest violated his constitutional rights because it occurred outside of Pennsylvania’s jurisdiction. The Supreme Court held that under federal law and historical precedent dating back to 1796 when Ohio became a state, the boundary between these two states extended into Lake Erie along their land border line until it reached Canada's territorial waters - meaning that where Mr.Colosimo was fishing fell within Ohio's territory not Pennsylvanian as contended by Officer Perini. Therefore,the court ruled in favor of Colosimo stating that he indeed had been wrongly arrested since he was operating within legal boundaries set forth by both federal law and historical agreements regarding interstate water boundaries.

In the dissenting opinion for Perini v. Colosimo, it was argued that the majority's decision to allow a union member to sue his employer directly under Section 301 of the Labor Management Relations Act (LMRA), despite an existing collective bargaining agreement and grievance procedure, undermined the fundamental principles of labor law. The dissent contended that allowing such lawsuits would disrupt industrial peace by encouraging individual members to bypass their unions and take disputes straight to court. It also suggested this could weaken unions' authority and ability to effectively represent their members in negotiations with employers. Furthermore, it was pointed out that Congress had not intended for Section 301 suits by individuals when they enacted LMRA; instead, these were meant as a tool for unions themselves in enforcing collective agreements against employers.