In the case of Gourko v. United States in 1893, the U.S. Supreme Court ruled on an issue involving immigration law and naturalization procedures. The petitioner, Gourko, was a Russian immigrant who had been denied citizenship by lower courts due to his inability to meet residency requirements stipulated under existing laws at that time. He argued that he should be granted citizenship because he had lived in Alaska when it was still part of Russia and before its purchase by the United States in 1867; thus considering this period as part of his residence duration within US territory for naturalization purposes. The Supreme Court disagreed with Gourko's argument stating that only those residing within states or incorporated territories could count their residency towards naturalization requirements according to law provisions then applicable (Revised Statutes § 2170). Since Alaska was not yet an incorporated territory during Gourko’s stay there under Russian rule, his time spent couldn't be counted toward fulfilling these criteria for gaining American citizenship. This decision underscored how strictly legal technicalities were applied regarding immigration and nationality matters during this era - emphasizing territorial incorporation status as a key factor determining eligibility for counting residency periods towards meeting statutory prerequisites for U.S. Citizenship.

The dissenting opinion in Gourko v. United States argued that the majority's decision to uphold a conviction based on evidence obtained through an illegal search and seizure was fundamentally flawed. The dissenters believed this ruling violated the Fourth Amendment, which protects citizens from unreasonable searches and seizures. They contended that by allowing illegally obtained evidence to be used in court, it effectively incentivizes law enforcement officers to disregard constitutional protections for expediency's sake. This could potentially lead to widespread abuses of power and erosion of civil liberties if left unchecked. Furthermore, they disagreed with the majority’s interpretation of what constitutes “reasonable” grounds for a search without warrant or probable cause – arguing instead for stricter standards that would better safeguard individual rights against arbitrary invasions by governmental officials.