Weeks v. United States

Weeks v. United States (1914) is a landmark Supreme Court case in which the Court ruled that evidence obtained illegally by law enforcement cannot be used in federal court. The case arose when federal agents seized a man's belongings without a warrant, leading to his conviction for transporting lottery tickets. The Supreme Court held that this violated the Fourth Amendment, which protects against unreasonable searches and seizures. As a result, the ruling established the "exclusionary rule," reinforcing the principle that due process must be respected in the gathering of evidence for legal proceedings.