Silverthorne Lumber Co. v. United States

1920-03-01
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Headline: Court blocks government from using copied papers seized in illegal search, reversing contempt fines and protecting businesses from evidence created by unlawful government raids.

Holding: The Court reversed the contempt judgment and held that the Government cannot use or rely on papers or knowledge obtained by an unlawful search, and corporations share Fourth Amendment protection.

Real World Impact:
  • Stops government from using illegally seized documents or copied information.
  • Strengthens protection for businesses’ records against warrantless raids.
  • Prevents subpoenas based solely on evidence gained by illegal searches.
Topics: illegal search and seizure, Fourth Amendment rights, use of seized documents, corporate records

Summary

Background

A lumber company and two men, Frederick W. Silverthorne and his father, were under investigation on a specific federal charge. They were arrested early one morning and detained for several hours. While detained, Department of Justice agents and the United States marshal went without authority to the company office and seized all books and papers. Copies and photographs were made and later presented to a grand jury. The District Court fined the company $250 and ordered Frederick Silverthorne jailed for refusing to obey subpoenas to produce the originals, even though the court found the initial seizure violated the Fourth Amendment.

Reasoning

The Court addressed whether the Government may keep, copy, study, and then use knowledge gained from an illegal search by later compelling production. Justice Holmes held that evidence or knowledge obtained by the Government’s own unlawful act could not be used at all. The Court explained that the Fourth Amendment’s protection would be empty if the Government could profit from its own wrong by copying seized materials. The opinion clarified that if the same facts are proved from an independent lawful source they may be used, but not when the Government relies on its wrongful seizure. The Court also affirmed that corporations share protection against unlawful searches.

Real world impact

The decision prevents federal agents from benefiting from warrantless raids by copying or using what they took. Businesses and individuals get stronger protection for their papers and records from unlawful government searches. Prosecutors cannot justify subpoenas based only on knowledge gained through an illegal seizure; courts must exclude such tainted use.

Dissents or concurrances

The Chief Justice and Justice Pitney dissented, disagreeing with the majority’s ruling.

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