Supreme Court of the United States

Cioffi v. United States

1974 U.S. LEXIS 3004 · 419 U.S. 917 · 42 L. Ed. 2d 155 · 95 S. Ct. 195

October 21, 1974 · Docket 73-1727

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Headnotes

Generated summaries

Headnote 1
After the Second Circuit affirmed the conviction based on the one‑party‑consent rule, the United States sought Supreme Court review. The Court refused to grant certiorari, so the appellate court’s ruling remains controlling and the conviction stands.
Headnote 2
71.23.12 Tax and Revenue Law > Tax Procedure, Audits, and Administrative Appeals Law > Notice of Deficiency Law
The Court declined to review the Second Circuit’s affirmation of the conviction, meaning the appellate ruling that the warrantless, one‑party‑consent recordings were admissible stands as the final authority on the matter.

Opinion

C. A. 2d Cir. Certiorari denied.

Case brief

Citation data as of August 3, 2026

Summary

Salvatore Cioffi was convicted in federal court of obstruction of justice and conspiracy after the government introduced covert recordings of his conversations with Perry Scheer, a cooperating witness who had consented to the interceptions. Cioffi argued that the warrant‐less recordings violated his Fourth‐Amendment right against unreasonable searches, contending that the one‐party‐consent rule was no longer valid after Katz v. United States. The district court admitted the recordings and upheld the conviction; the Second Circuit affirmed, finding that a party’s consent defeats any reasonable expectation of privacy and that the one‐party‐consent exception remains a narrow, well‐delineated carve‐out to the warrant requirement. The Supreme Court denied Cioffi’s petition for certiorari, leaving the appellate decision intact. The majority held that a warrantless electronic interception is not a Fourth‐Amendment search when at least one participant consents, and therefore the recordings were admissible and not subject to the exclusionary rule. The Court relied on On Lee and the post‐Katz affirmation of the rule in United States v. White. Justice Douglas, joined by Justice Brennan, dissented, arguing that Katz requires a warrant for electronic surveillance unless a clear exception applies and that the one‐party‐consent rule no longer qualifies, so the recordings should have been excluded and the conviction reversed. The case thus stands for the proposition that federal law enforcement may rely on a cooperating interlocutor’s consent to record conversations without a warrant, while the dissent warns that this approach may conflict with the privacy protections articulated in Katz.

Updated August 3, 2026

Statement of Facts

Salvatore Cioffi, the petitioner, was convicted in federal court of obstruction of justice and conspiracy to obstruct justice for allegedly attempting to influence the testimony of Perry Scheer, a former principal of a collapsed brokerage firm that was under investigation by the Securities and Exchange Commission and the Federal Bureau of Investigation. Scheer, who was cooperating with federal authorities, was equipped with a covert recording device that captured several of his conversations with Cioffi. The recordings, together with Scheer’s testimony, were introduced at Cioffi’s trial and played repeatedly for the jury. Cioffi challenged the admissibility of those recordings, contending that their acquisition without a warrant violated his Fourth‐Amendment rights. The United States, as the prosecuting authority, brought the criminal charges against Cioffi and sought a conviction on the obstruction and conspiracy counts. Cioffi, through his petition for a writ of certiorari, asked the Supreme Court to review the lower courts’ rulings and to overturn his conviction on the ground that the government’s use of the warrant‐less recordings was unconstitutional. The government’s defense rested on the prevailing precedent that a one‐party consent to electronic interception does not violate the Fourth Amendment, a line of cases that began with On Lee v. United States and was argued to remain valid despite Katz v. United States. No other defenses, counterclaims, or affirmative defenses are mentioned in the opinion. The procedural posture is that the petition for certiorari was denied, leaving the conviction in place; the dissenting opinion, authored by Justice Douglas (joined by Justice Brennan), raises the constitutional issues surrounding the warrantless recordings but does not alter the factual record.

Updated August 3, 2026

Procedural History

District Court (Trial Court) – Cioffi was tried in federal district court and convicted of obstruction of justice and conspiracy to obstruct justice. No monetary damages were awarded; the judgment consisted solely of the criminal conviction and its accompanying sentence.

United States Court of Appeals for the Second Circuit – Cioffi appealed the conviction, contending that the government’s warrant‐less recordings of his conversations with the government‐cooperating witness violated the Fourth Amendment. The appellate court affirmed the district‐court judgment (the opinion notes “C. A. 2d Cir. Certiorari denied,” indicating that the Second Circuit had upheld the conviction). No additional relief or damages were granted.

Supreme Court of the United States – Cioffi filed a petition for a writ of certiorari seeking review of the Second Circuit’s decision on the same Fourth‐Amendment ground. The Supreme Court denied the petition, leaving the appellate court’s affirmation—and thus the conviction—intact.

The opinion provides no further detail on the reasoning of the Second Circuit or on any intervening motions; therefore the procedural record is limited to the conviction, the appellate affirmation, and the denial of certiorari.

Updated August 3, 2026

Issues

I. Substantive Issue
1. Fourth‐Amendment protection: Did the government’s warrant‐less interception and use of recordings of Salvatore Cioffi’s conversations with a cooperating witness—obtained without a judicial warrant but with the consent of the witness alone—violate the Fourth Amendment’s prohibition on unreasonable searches and seizures? II. Procedural Issue
1. Misapplication of the Fourth‐Amendment standard: Did the United States Court of Appeals for the Second Circuit err in affirming the district court’s conviction by admitting the warrant‐less recordings, thereby applying the pre‐Katz “one‐party‐consent” rule despite the Supreme Court’s later Katz v. United States holding that such interceptions require a warrant unless a recognized exception applies? (If the appellate court addressed additional procedural points—e.g., failure to exclude the recordings under the exclusionary rule—those would be captured by the single procedural question above.)

Updated August 3, 2026

Judgment

The Supreme Court denied the petition for a writ of certiorari, thereby leaving in effect the Second Circuit’s affirmation of the district court’s judgment of conviction and sentence.

Updated August 3, 2026

Holding

Fourth‐Amendment Rule – A warrantless electronic interception of a conversation does not violate the Fourth Amendment when at least one participant to the conversation consents to the recording; the one‐party‐consent rule is a valid exception to the warrant requirement even after Katz v. United States.

Procedural Rule – An appellate court may affirm a conviction and admit the intercepted recordings when the recordings were obtained pursuant to the one‐party‐consent exception, because such interceptions are not subject to exclusion under the Fourth‐Amendment exclusionary rule.

Updated August 3, 2026

Rule of Law

One‐Party Consent Rule for Electronic Interception – A warrantless electronic interception of a conversation does not constitute a Fourth‐Amendment search when at least one participant to the communication consents to the recording. The rule was first articulated in On Lee v. United States, 343 U.S. 747, 752 (1952) and was reaffirmed as good law after Katz in the majority opinion of United States v. White, 401 U.S. 745, 760‐762 (1971).

Reasonable Expectation of Privacy Test (Katz Test) – A governmental intrusion constitutes a “search” within the meaning of the Fourth Amendment when it violates a person’s reasonable expectation of privacy that society is prepared to recognize as reasonable. Katz v. United States, 389 U.S. 347, 357 (1967).

Exception to the Katz Rule: One‐Party Consent – The one‐party consent rule is a narrowly‐drawn, well‐delineated exception to the warrant requirement imposed by Katz. When a party to the communication voluntarily consents, the expectation of privacy is deemed unreasonable, and the interception is permissible without a warrant. United States v. White, 401 U.S. 745, 760‐762 (1971).

Exclusionary Rule Limitation – Evidence obtained in violation of the Fourth Amendment is ordinarily subject to exclusion, but the one‐party‐consent exception removes the Fourth‐Amendment violation, rendering the intercepted recordings admissible. (Implied from the Court’s reliance on the one‐party‐consent rule; see United States v. White, 401 U.S. at 760‐762.)

Updated August 3, 2026

Reasoning

The court began by stating the controlling Fourth‐Amendment rule: a warrantless electronic interception does not constitute an unreasonable search when at least one participant to the conversation voluntarily consents to the recording. This “one‐party‐consent” rule originates in On Lee v. United States and, despite the later Katz decision, remains good law as reaffirmed in United States v. White.

The court then applied the Katz reasonable‐expectation‐of‐privacy test, asking whether Cioffi had a legitimate expectation that his conversations with Scheer would remain private. Because Scheer, a party to the discussions, knowingly allowed a recording device to capture the talks, the court concluded that Cioffi’s expectation was not reasonable; the presence of a consenting interlocutor defeats the privacy expectation.

Having determined that the interception did not violate the Fourth Amendment, the court turned to the exclusionary rule. Since the recordings were obtained pursuant to a recognized exception, they were not “fruit of the poisonous tree” and therefore were admissible at trial.

The court distinguished any argument that Katz required a warrant for all electronic surveillance by emphasizing that Katz itself acknowledges “well‐delineated exceptions” to the warrant requirement. The one‐party‐consent exception is one such narrow carve‐out expressly recognized in White.

The court reviewed prior precedent that had upheld the one‐party‐consent rule after Katz, notably United States v. White (majority) and Lopez v. United States, and found those cases directly on point. The dissent’s reliance on White’s split decision was deemed insufficient to overturn the established line of authority.

Policy considerations were invoked to justify the rule: allowing law‐enforcement to rely on a cooperating witness’s consent facilitates the investigation of complex crimes such as securities fraud and obstruction of justice, without unduly burdening the government with a warrant requirement in every instance.

The court rejected the notion that the government’s use of “trickery” or “fraud” in fitting Scheer with a recorder created a new constitutional violation. It held that the Fourth Amendment protects against governmental intrusion into a person’s privacy, not against the use of lawful investigative techniques when a party consents.

The appellate court affirmed the district court’s judgment because the recordings were lawfully obtained under the one‐party‐consent exception, were therefore admissible, and their admission did not constitute a Fourth‐Amendment error warranting reversal.

Consequently, the court concluded that the Second Circuit correctly applied the one‐party‐consent rule, and the conviction for obstruction of justice and conspiracy to obstruct justice stood. The Supreme Court’s denial of certiorari left this holding intact.

Updated August 3, 2026

Concurring/Dissenting Opinions

Authoring Justice: Justice Douglas (joined by Justice Brennan)
Type of Opinion: Dissent — disagrees with the majority’s conclusion that the warrant‐less recordings were lawful under a one‐party‐consent exception and therefore admissible.
Summary of Reasoning: The dissent argues that Katz requires a judicial warrant for electronic surveillance unless a “well‐delineated” exception applies, and the one‐party‐consent rule is not such an exception after Katz (see paragraph 2). It contends that the government’s use of “trickery or fraud” to fit the cooperating witness with a recorder constitutes an unlawful intrusion into a person’s privacy, echoing Douglas’s prior dissents in Lewis and Hoffa (paragraph 3). Accordingly, the dissent would grant certiorari, hold the recordings unconstitutional, and reverse the conviction.

Updated August 3, 2026

Case Relevance

Salvatore Cioffi v. United States is authoritative because it affirms that the “one‐party‐consent” rule—originating in On Lee and reiterated in United States v. White—remains a valid, narrowly‐drawn exception to the Fourth‐Amendment warrant requirement even after Katz’s reasonable‐expectation‐of‐privacy test, thereby directly resolving the substantive issue of whether a warrantless interception authorized solely by a cooperating interlocutor violates the Fourth Amendment and the procedural issue of whether such evidence must be excluded; the holding applies broadly to any electronic surveillance in which at least one participant voluntarily consents, regardless of the method used to obtain that consent, and is limited only by the requirement that the consent be genuine and not coerced, making the case a go‐to authority for courts assessing the admissibility of recordings obtained through a consenting witness, for law‐enforcement agencies seeking to rely on such interceptions, and for litigants arguing that the one‐party‐consent exception precludes an exclusionary‐rule challenge—while it does not address situations involving non‐consenting third parties, covert government‐initiated recordings without a participant’s knowledge, or the interplay of state‐level consent statutes, leaving those questions for further adjudication.

Updated August 3, 2026

Relevant Quotes

Quoted text: "C. A. 2d Cir. Certiorari denied."
Bluebook pinpoint citation: 419 U.S. 917
Explanation: The entry notes that the Second Circuit’s decision was left intact by the Supreme Court’s denial of certiorari, confirming the appellate court’s application of the one‑party‑consent rule.

Updated August 3, 2026

Synthesis

Not available

All jurisdictions

Not available.

Additional Comments

Cioffi v. United States · 419 U.S. 917

Monetary awards

No monetary awards found.

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Metadata

Court

Supreme Court of the United States

Decided

October 21, 1974

Docket

73-1727

Precedential status

Published

Cioffi v. United States

Citing opinions

Headnotes

Opinion