Costello v. United States

Supreme Court of United States
350 U.S. 359 (1956)
ELI5:

Sections

Rule of Law:

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The Legal Principle

This section distills the key legal rule established or applied by the court—the one-liner you'll want to remember for exams.

Facts:

  • Frank Costello was investigated for wilfully attempting to evade payment of federal income taxes for the years 1947, 1948, and 1949.
  • The government alleged that Costello and his wife had fraudulently underreported their income during those years.
  • A federal grand jury was convened to hear evidence regarding the tax evasion allegations.
  • The only witnesses who testified before the grand jury were three government investigating officers.
  • These officers did not have any firsthand knowledge of the financial transactions in question.
  • Their testimony consisted of summaries of financial documents and information obtained from other potential witnesses, which constituted hearsay.
  • Based exclusively on this hearsay testimony, the grand jury returned an indictment charging Costello with tax evasion.

Procedural Posture:

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How It Got Here

Understand the case's journey through the courts—who sued whom, what happened at trial, and why it ended up on appeal.

Issue:

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Legal Question at Stake

This section breaks down the central legal question the court had to answer, written in plain language so you can quickly grasp what's being decided.

Opinions:

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Majority, Concurrences & Dissents

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Analysis:

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Why This Case Matters

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