In the case of Wilson v. Schnettler et al., 1960, the U.S Supreme Court ruled on a matter involving an FBI agent who had been sued for allegedly violating a man's Fourth Amendment rights during an arrest in New York City. The plaintiff, Wilson, claimed that he was arrested without probable cause and subsequently transported across state lines to Connecticut where he faced charges related to counterfeiting operations. The defendant, Schnettler - an FBI agent - argued that his actions were within federal jurisdiction and thus protected by sovereign immunity. The court held in favor of the defendant with Justice Whittaker writing for majority opinion stating that while there may have been potential violations of state law or even federal statutory law regarding interstate extradition procedures; these did not amount to constitutional violations under Fourth Amendment as it does not forbid arrests without warrant upon reasonable belief (probable cause) nor transportation across state lines after lawful arrest. This decision clarified the scope of protection offered by sovereign immunity to federal officers acting within their official capacity and affirmed their authority over matters falling under federal jurisdiction regardless of geographical boundaries between states.

In the dissenting opinion for Wilson v. Schnettler, Justice Douglas argued that the majority's decision to allow federal officers to arrest without a warrant in non-federal cases was an overreach of power and violated constitutional rights. He contended that there were no statutory provisions or precedents permitting such actions by federal agents unless they were assisting local law enforcement under their direction and supervision. Furthermore, he expressed concern about potential abuses of this power if left unchecked, as it could lead to unwarranted arrests based on mere suspicion rather than probable cause. In his view, the Fourth Amendment’s protection against unreasonable searches and seizures should extend to all citizens regardless of whether they are involved in state or federal matters.