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Specific Federal Crimes
The conspiracy charge is not supplemental. It is the architecture of the federal case itself, the statute that permits the government to convict a person for conduct that person did not perform, based on words that person did not speak, through evidence that would be inadmissible in any other context. Under 18 U.S.C. § 371, the government must establish only two things: an agreement between two or more persons to commit a federal offense, and a single overt act by any member of the conspiracy in furtherance of that agreement. The act need not be criminal. Purchasing a telephone qualifies. Renting a storage unit qualifies.
The threshold is not conduct; it is coordination.
What makes the conspiracy charge so consequential is not the statutory maximum, which under § 371 is five years. It is what the charge unlocks. Once the government establishes a conspiracy, it gains access to evidentiary rules, liability doctrines, and sentencing enhancements that would be unavailable in a straightforward prosecution of the underlying offense. The conspiracy charge is the door through which everything else enters. The telephone, the storage unit, the wire transfer on a Tuesday afternoon in March.
The Statutory Framework
Under 18 U.S.C. § 371, two elements compose the offense: an agreement and an overt act. The agreement need not be written, spoken, or even explicit. Federal courts permit the government to establish agreement through circumstantial evidence: patterns of conduct, timing, communications that suggest coordination. The statute penalizes, if we are being precise about it, the agreement itself rather than any particular criminal act. Two people, a plan, and one act that need not itself be criminal.
The overt act requirement distinguishes § 371 from other federal conspiracy statutes. Drug trafficking conspiracies under 21 U.S.C. § 846, for instance, require no overt act at all. The agreement is the crime. The agreement, in other words, is self-executing. Fraud conspiracies under 18 U.S.C. § 1349 follow the same structure. The practical consequence is that the government can charge conspiracy even when the intended crime was never completed, when no victim suffered a loss, and when the defendant’s own conduct, viewed in isolation, would not constitute an offense.
The statute is not entirely settled on whether certain peripheral conduct qualifies as participation or mere presence. Attendance at a meeting where criminal plans are discussed does not, standing alone, establish membership in a conspiracy. But the line between presence and participation is drawn by juries, not by statute, and juries tend to draw it where the government suggests.
The court regards the conspiracy itself as the engine, and every foreseeable product of that engine attaches to every person who helped construct it. The penalty under § 371 is five years, but specific conspiracy statutes carry the same penalties as their underlying offenses. A conspiracy to commit wire fraud carries a sentence of up to twenty years. A drug trafficking conspiracy can carry a mandatory minimum of ten years or more. The five years that § 371 advertises on its face rarely describe the sentence a defendant receives.
The Liability That Follows You Home
Pinkerton v. United States, decided in 1946, established a principle that has shaped federal prosecution for eight decades.
The case involved two brothers, Walter and Daniel Pinkerton, who operated an illegal whiskey enterprise. Walter committed the substantive offenses. Daniel (who, it should be noted, had been incarcerated at the time the substantive offenses were committed, a fact that did not prevent his conviction for those offenses) was convicted of those same offenses on the theory that they were committed in furtherance of a conspiracy he had joined and from which he had not withdrawn. The Supreme Court upheld the conviction. What matters, under Pinkerton, is foreseeability.
A conspiracy, once joined, follows you even when you are not following it.
The doctrine holds that a conspirator is criminally liable for the substantive offenses committed by co-conspirators, provided those offenses were committed in furtherance of the conspiracy and were reasonably foreseeable as a natural consequence of the conspiratorial agreement. The doctrine does not require that the act be foreseeable to the particular defendant; it requires that the act be foreseeable from the conspiracy itself, which is a different and more permissive standard.
In Reese v. United States, a cert petition filed in 2025 asked the Supreme Court to overrule Pinkerton entirely. The petitioner, represented by Paul Clement, argued that the doctrine constituted judicial creation of criminal liability without statutory basis. The government waived its right to respond. That cert petition was denied in January of this year.
I am less certain about how this principle will develop than the preceding paragraphs may suggest. The denial of certiorari does not indicate approval; it indicates that the Court was not prepared to take up the question. But the practical consequence is that Pinkerton remains the law in every federal circuit. The scope of what qualifies as foreseeable has, in practice, come to include almost any criminal conduct adjacent to the conspiracy’s purpose. In three cases this year alone in the Eastern District, defendants were held liable for acts of violence committed by co-conspirators they had never met, on the theory that violence was a foreseeable incident of the drug trafficking conspiracy they had joined.
You sign the agreement and then you discover what the agreement permitted.
Whether the court intended this outcome or merely failed to prevent it is a question worth sitting with.
Evidentiary Consequences of the Conspiracy Charge
Federal Rule of Evidence 801(d)(2)(E) permits the introduction of statements made by a co-conspirator during the course and in furtherance of the conspiracy. The rule, technically, defines such statements as “not hearsay” rather than as an exception to the hearsay rule, which is a distinction prosecutors appreciate and defendants do not.
The effect is substantial. Statements made by any alleged co-conspirator, to anyone, at any point during the life of the conspiracy, become admissible against every member. The declarant need not testify. The defendant need not have been present when the statements were made. The defendant need not have known the declarant existed. Under Bourjaily v. United States, the court may consider the contents of the co-conspirator’s statements themselves in determining whether the conspiracy existed and whether the defendant participated in it. This creates a circularity that courts have acknowledged without resolving: the statements help prove the conspiracy, and the conspiracy makes the statements admissible.
The Eleventh Circuit expanded this principle in United States v. Holland in late 2024, holding that a criminal conspiracy need not even be established for the rule to apply. The court in Holland reasoned that a joint venture was sufficient. The parameters of what constitutes a joint venture remain, to put it mildly, unclear. The government now has a broader evidentiary tool in at least one circuit, and the reasoning in Holland will likely be tested elsewhere.
Most defendants do not appreciate the evidentiary consequences of a conspiracy charge until they are sitting in a courtroom listening to testimony about conversations they were not part of, conducted by people they have never seen, describing plans they did not know existed. The words of a stranger become the evidence against you, and the law calls this fair.
Withdrawal
Withdrawal from a conspiracy is a recognized defense in federal court, though its practical value is more limited than the name suggests.
To withdraw, a defendant must take an affirmative step to renounce or defeat the purpose of the conspiracy. Mere cessation of activity is insufficient. The withdrawal must occur before any overt act has been committed; once an overt act takes place, the crime of conspiracy is complete, and withdrawal does not undo it. If the conspiracy has already produced an overt act, the crime is complete, and withdrawal cannot undo it.
What withdrawal can do, in most of the cases we encounter, though the sample is not scientific, is limit the defendant’s exposure under Pinkerton for acts committed after the withdrawal, and it can restart the statute of limitations clock. These are sentencing consequences, not acquittal defenses. The distinction matters. A defendant who withdrew from a drug conspiracy before the quantities escalated may face sentencing based on the quantity attributable to the period of participation rather than the full scope of the enterprise. That reduction can mean the difference between a ten-year mandatory minimum and something considerably less severe. Withdrawal remains, in most of the cases we encounter, a sentencing argument rather than a trial defense.
Timing and the Decision to Retain Counsel
The telephone call to this office tends to arrive late. Not catastrophically so, but late enough that certain decisions have already been made, certain statements have already been given, and certain opportunities have already closed. The interview with federal agents has already occurred.
The instinct, when a federal agent contacts a person and requests a conversation, is to cooperate. The agent’s demeanor is professional. The questions seem routine. The person believes that candor will resolve the matter. What this person does not perceive is that the interview is the investigation, that every response is being evaluated not for its truth but for its consistency with evidence the government already possesses, and that a single inconsistency can produce an independent charge under 18 U.S.C. § 1001 for making false statements to federal investigators.
We approach the initial consultation differently than many firms do on this point. Before a single motion is filed, before the government’s evidence is reviewed, before the scope of the alleged conspiracy is understood or the list of co-conspirators is known or the government’s cooperating witnesses have been identified, we begin with a question about timing: when did the client first learn they were under investigation, and what did they do in the interval between that knowledge and this call. The answer to that question shapes the defense more than any statute or case. Most people do not call until it is too late. I understand why.
A consultation is where that conversation begins.