Agreement
Criminal Defense
Federal Conspiracy Charges
Federal conspiracy charges are among the most powerful tools in the federal prosecutor's arsenal. A conspiracy conviction does not require the underlying crime to be completed, and each member of the conspiracy can be held criminally responsible for the acts of all other members taken in furtherance of the scheme. Understanding how conspiracy liability works — and where it can be challenged — is critical to any federal defense.
Important
This is general information, not legal advice. If an arrest happened recently or you believe you are under investigation, do not explain anything to law enforcement before speaking with counsel.
Overview
Conspiracy charges expand liability to cover agreements and conduct you may not have directly participated in.
Federal conspiracy (18 U.S.C. § 371) makes it a crime to agree with one or more persons to commit a federal offense, when one member of the conspiracy takes an overt act in furtherance of the agreement. No completed offense is required — the agreement itself is the crime.
Specific conspiracy statutes apply to particular offenses: 21 U.S.C. § 846 for drug conspiracies; 18 U.S.C. § 1349 for fraud conspiracies; 18 U.S.C. § 1956(h) for money laundering conspiracies. These specific statutes do not require proof of an overt act — the agreement alone is sufficient.
The "Pinkerton doctrine" allows each co-conspirator to be held liable for the substantive criminal acts of any other co-conspirator, as long as those acts were reasonably foreseeable and done in furtherance of the conspiracy. This doctrine dramatically expands liability in multi-defendant cases.
Federal conspiracy cases frequently involve cooperating witnesses — co-defendants who have agreed to testify for the government in exchange for reduced sentences. Understanding how the government has structured cooperation agreements and what those witnesses will say is a central part of preparing a defense.
Key points
Pinkerton
You can be liable for co-conspirators' acts you did not personally commit
Co-operators
Cooperating witnesses are the core evidence in most conspiracy cases
Scope
The scope of the conspiracy drives guideline calculations for all members
Penalties & Exposure
Sentencing in federal conspiracy cases
§ 371 general conspiracy carries a maximum of 5 years. However, conspiracy under a specific statute (§ 846, § 1349, etc.) typically carries the same maximum as the underlying offense — meaning a drug trafficking conspiracy can carry 10, 20, or 40 years depending on drug type and quantity.
For sentencing purposes, each member of a conspiracy is typically held responsible for the reasonably foreseeable conduct of co-conspirators within the scope of the jointly undertaken criminal activity. This means a defendant who played a minor role may be sentenced based on the total scale of the conspiracy.
Role adjustments can significantly affect the guideline range. Defendants identified as leaders or organizers receive enhancements; defendants who played a minimal or minor role may receive a reduction. These determinations are contested at sentencing.
Cooperation with the government — providing substantial assistance in the prosecution of others — can result in a motion under § 5K1.1 for a below-guidelines sentence, sometimes dramatically reducing the range. Whether and how to cooperate is one of the most consequential decisions in any federal conspiracy case.
How These Cases Are Defended
Defense strategies
Challenging whether the defendant knowingly joined the conspiracy; disputing the scope and duration of the defendant's participation; contesting attribution of co-conspirator conduct; impeaching cooperating witnesses; arguing withdrawal from the conspiracy before the charged overt acts occurred.
The critical factual question in many conspiracy cases is whether the defendant entered into the specific agreement charged, or whether they were merely present, associated with people involved, or engaged in parallel but independent conduct. This distinction — between being part of a conspiracy and simply knowing about it — is often the heart of the defense.
Common Questions
Frequently asked
Quick answers to the questions we hear most often. Every case is different — call for a private consultation.
What is the difference between being in a conspiracy and just knowing about one?
Knowing about a conspiracy is not enough for criminal liability. The defendant must have knowingly and voluntarily joined the agreement. Mere association with co-conspirators, being present during criminal activity, or even benefiting from the conspiracy does not make someone a member. The government must prove the defendant agreed to participate in the criminal scheme.
Can I be convicted of conspiracy if the co-conspirator was a government agent?
Generally, no. A conspiracy requires at least two genuine co-conspirators. If one alleged co-conspirator was an undercover agent or government informant who had no genuine intent to commit the crime, the conspiracy charge may fail for lack of a true agreement. This is the "Sears" defense, though its application depends on the specific circumstances.
What does "withdrawal" from a conspiracy mean, and how does it work?
A defendant who withdraws from a conspiracy before the completion of the scheme may have a defense to liability for subsequent acts of co-conspirators. Withdrawal requires an affirmative act — such as reporting to law enforcement or making clear to co-conspirators that participation has ended — not merely ceasing active participation. The statute of limitations also runs from the date of withdrawal, not the end of the conspiracy.
Talk to counsel before the state defines your case for you.
Early decisions often control everything that follows.
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