OCTOBER TERM 1963 · DECIDED MAY 18, 1964 · 6–3

377 U.S. 201 · No. 199 · Argued March 3, 1964

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Massiah v. United States

ReversedFinal ruling
right to counselcriminal procedurepolice investigationsnarcotics prosecutionSixth Amendment

Opinion of the Court by Justice Stewart

The Supreme Court ruled that federal agents violated a man's Sixth Amendment right to a lawyer by secretly recording his incriminating conversation with a cooperating co-defendant after he had already been indicted and retained counsel.

The decision established that once a defendant has been formally charged, the government cannot deliberately elicit incriminating statements from him outside his lawyer's presence and then use those statements against him at trial, even if he doesn't know he's being questioned.

All that we hold is that the defendant's own incriminating statements, obtained by federal agents under the circumstances here disclosed, could not constitutionally be used by the prosecution as evidence against him at his trial.
Justice Stewart

The Court's core holding limiting the use of statements deliberately elicited after indictment.

How it got here: A jury convicted the defendant using the recorded statements; the Second Circuit affirmed; the Supreme Court granted certiorari to review the constitutional question.

The Case in Depth

What happened

A merchant seaman was indicted for narcotics offenses after cocaine was found aboard his ship. He hired a lawyer, pleaded not guilty, and was released on bail along with a co-defendant, Colson. Unbeknown to him, Colson began cooperating with federal agents and let an agent install a hidden radio transmitter in his car, which recorded the seaman's incriminating statements during a later conversation.

The question before the Court

Could the government use secretly recorded incriminating statements a man made to a cooperating co-defendant after he had already been indicted and had a lawyer?

Why it matters

The ruling means that after someone is formally charged with a crime, police and prosecutors cannot use secret informants or hidden recording devices to gather incriminating statements for use at trial without the person's lawyer present. This reshaped how law enforcement investigates indicted defendants and became a foundational protection for anyone facing formal criminal charges.

What changes now

The conviction was reversed based on the improperly admitted statements. The Court did not need to reach the separate Fourth Amendment argument about the legality of the hidden radio transmitter itself. The ruling set a rule federal and state courts would apply going forward whenever the government deliberately elicits statements from an already-indicted, represented defendant outside counsel's presence.

What this does not decide

The Court did not decide whether the hidden radio transmitter itself violated the Fourth Amendment, and it did not question the government's right to keep investigating a defendant and his associates after indictment. It also did not address statements made before indictment or without deliberate elicitation by government agents.

Concurrences and dissents

Dissent — Justice White

Massiah and those like him receive ample protection from the long line of precedents in this Court holding that confessions may not be introduced unless they are voluntary.White's argument that the traditional voluntariness test already protected defendants adequately.

Justice White argued the majority created a sweeping new exclusionary rule without adequate justification, since Massiah's right to consult counsel was never actually obstructed and the statements were entirely voluntary. He warned the rule would extend far beyond this case, undermining law enforcement's ability to use cooperating informants and confederates. He would have kept the traditional voluntariness test, considering absence of counsel only as one factor.

How the Court got there

The legal reasoning, step by step

  1. The Court built on Spano v. New York, where concurring Justices had argued that deliberately eliciting a confession from an indicted defendant without his lawyer violates his right to counsel, since indictment marks the point where formal adversarial proceedings begin.
  2. The Court explained that the right to counsel is not limited to the courtroom itself but extends to critical pretrial periods, including police interrogation, because that is often when legal advice matters most to a defendant's fate.
  3. Because this was a federal prosecution, the Sixth Amendment's guarantee of counsel applied directly, rather than through the Fourteenth Amendment as in state cases like Spano.
  4. The Court rejected the government's argument that the secret, indirect nature of the interrogation (via a hidden radio transmitter rather than face-to-face police questioning) made a constitutional difference, reasoning that the defendant was arguably more disadvantaged because he did not even know he was being questioned.
  5. The Court distinguished between the government's right to keep investigating a suspect after indictment, which it approved, and the separate question of whether statements gathered that way could be used at trial, concluding the two were not the same.
  6. Applying this distinction, the Court held that using the defendant's own words, deliberately drawn out by government agents after indictment and without his lawyer, violated his right to counsel, regardless of how the government obtained them.

Doctrinal impact

Laws and provisions at issue

Sixth Amendment

Guarantees criminal defendants the right to a lawyer's help in their defense.

Fifth Amendment

Protects against being forced to testify against oneself in a criminal case.

Fourth Amendment

Protects against unreasonable searches, an issue the Court did not reach here.

Cases affected by this decision

Reaffirms Spano v. New York (360 U.S. 315)

The Court relied on Spano's reasoning that eliciting confessions from indicted defendants without counsel is unconstitutional.

Reaffirms Powell v. Alabama (287 U.S. 45)

The Court cited Powell as establishing that counsel is needed throughout the pretrial period, not just at trial.

Supreme Court Opinion

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Massiah v. United States | SCOTUS Reporter