Federal Defense Strategies: 18 U.S.C. § 371 (Federal Conspiracy Charges)
Federal conspiracy charges under 18 U.S.C. § 371 are among the most powerful and frequently used tools in federal criminal prosecutions.
Federal prosecutors rely on conspiracy allegations to expand criminal liability, sweep in peripheral or indirect participants, and dramatically increase sentencing exposure—even when an individual never personally committed or completed the underlying offense.
Because federal conspiracy law is technical, broad, and heavily fact-driven, securing early defense representation from an experienced federal criminal defense law firm is essential to protecting your rights and mitigating potential exposure.
What Is Federal Conspiracy Under 18 U.S.C. § 371?
Under federal law, a criminal conspiracy exists when two or more individuals agree to commit a federal offense or defraud the United States, and at least one participant commits an overt act to carry out that plan.
Core Elements of 18 U.S.C. § 371
To secure a conviction under § 371, federal prosecutors must establish every element beyond a reasonable doubt:
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An Agreement: Two or more people reached an express or implied agreement to violate a federal statute or defraud a federal agency.
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Knowledge and Intent: The defendant knew of the unlawful objective and voluntarily joined the agreement with specific criminal intent.
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At Least One Overt Act: At least one member of the conspiracy performed an overt act in furtherance of the unlawful objective.
Key Takeaway: The government does not need to prove a formal written contract, that every co-conspirator knew every detail, or that the underlying crime was successfully completed. The illegal agreement itself, combined with a single overt act, completes the crime.
Two Prongs of 18 U.S.C. § 371
The general federal conspiracy statute contains two distinct clauses:
1. Conspiracy to Commit an Offense Against the United States
This prong involves agreeing to violate a specific substantive federal statute, including:
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Wire fraud and mail fraud
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Health care fraud and Medicare/Medicaid schemes
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Money laundering and financial crimes
2. Conspiracy to Defraud the United States
This clause applies to schemes designed to interfere with, obstruct, or impair lawful government functions or federal regulatory agencies through deceit or dishonest means.
No monetary loss is required—prosecutors only need to demonstrate interference with a federal agency's operations (e.g., IRS tax administration, customs enforcement, or regulatory compliance).
The Overt Act Requirement and Vulnerability of Peripheral Defendants
Most federal conspiracy statutes—including 18 U.S.C. § 371—require proof of an overt act.
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An overt act does not need to be illegal on its own (e.g., making a phone call, opening a bank account, sending an email, or renting a car).
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The overt act can be committed by any co-conspirator. Once performed, every member of the conspiracy becomes criminally liable for all foreseeable acts committed in furtherance of the joint enterprise.
Because of the broad scope of conspiracy laws, individuals on the periphery of an alleged scheme—such as administrative staff, lower-level employees, or minor associates—frequently face the exact same federal indictments and exposure as the primary organizers.
Penalties and Statutory Exposure
|
Statutory Element |
Details |
| Statutory Maximum (General § 371) | Up to 5 years in federal prison per count |
| Fines | Up to $250,000 for individuals (or double the gross gain/loss) |
| Supervised Release | Multi-year post-incarceration oversight |
| Underlying Substantive Counts | Prosecutors routinely charge both § 371 conspiracy and substantive offenses (e.g., wire fraud carries up to 20 years per count), creating cumulative sentencing exposure. |
Defense Strategies Against Federal Conspiracy Charges
Defending against 18 U.S.C. § 371 requires challenging the government's evidence regarding agreement, intent, and procedural legality:
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Lack of Agreement (Mere Association): Establishing that business relationships, social presence, or awareness of activities did not constitute a mutual criminal agreement.
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Lack of Specific Intent: Demonstrating that the defendant acted with good-faith business motives, under professional advice, or without knowledge of illegal objectives.
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No Qualifying Overt Act: Showing that alleged actions were completely independent, lawful, or unrelated to the alleged criminal objective.
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Affirmative Defense of Withdrawal: Proving the defendant took affirmative steps to disavow the agreement or notify law enforcement prior to the commission of an overt act.
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Fourth & Fifth Amendment Suppression: Challenging federal wiretaps, search warrants, digital forensic extractions, or coerced statements obtained in violation of constitutional rights.
Frequently Asked Questions (FAQs)
What is the legal definition of an overt act in a federal conspiracy case?
An overt act is an outward, intentional act performed by at least one co-conspirator to advance the goal of the conspiracy. The act itself does not need to be illegal; even standard, everyday actions—such as sending a text message or opening a bank account—satisfy the statutory requirement if done to further the illegal plan.
Can a person be convicted of federal conspiracy if the underlying crime was never completed?
Yes. Federal conspiracy under 18 U.S.C. § 371 is an independent inchoate offense. The crime is complete as soon as an agreement forms and one participant commits a single overt act, regardless of whether the substantive offense was achieved or abandoned.
What is the difference between substantive charges and conspiracy charges?
A substantive charge penalties the actual commission of a federal crime (such as wire fraud under 18 U.S.C. § 1343). A conspiracy charge penalties the underlying agreement and planning between two or more people to commit that crime. Federal prosecutors can and routinely do charge defendants with both the conspiracy and the completed substantive offenses.
Is mere presence or knowledge enough for a federal conspiracy conviction?
No. Federal courts consistently rule that mere association with conspirators, presence at the scene of a crime, or passive knowledge that a crime is occurring is insufficient to prove conspiracy. Prosecutors must prove beyond a reasonable doubt that the defendant intentionally joined the agreement and intended to further its unlawful goal.
What should you do if federal agents contact you regarding a conspiracy investigation?
Do not answer questions, provide statements, or attempt to explain your role to federal agents (such as the FBI, IRS-CI, or HSI). Politely decline to be interviewed without an attorney, invoke your Right to Counsel under the Fifth Amendment, and retain experienced federal defense counsel immediately.
Contact Eisner Gorin LLP for Federal Conspiracy Defense
A federal conspiracy investigation under 18 U.S.C. § 371 requires immediate, proactive legal action before grand jury indictments are finalized.
Based in Los Angeles, Eisner Gorin LLP represents individuals and corporate clients in high-stakes federal criminal matters across California and nationwide.
Our defense attorneys intervene early to challenge grand jury evidence, protect client constitutional rights, and minimize sentencing exposure.
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Phone: (818) 781-1570
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Office Location: Los Angeles, California