Many people assume they can’t be charged with a crime they did not personally commit. However, conspiracy prosecutions work differently. Conspiracy allegations allow the government to bring charges against individuals who never personally carried out the underlying crime. Denver conspiracy lawyers know that these are tough cases that require the most prepared lawyers to defend them. 

Under both Colorado and federal law, a conspiracy charge may be pursued without the completed commission of a crime. Unlike many criminal offenses, a conspiracy charge does not focus solely on what a person did. Instead, it focuses on what prosecutors claim a group of people agreed to do.

If you are under investigation or have been charged with conspiracy, an experienced Colorado conspiracy lawyer can evaluate whether prosecutors actually have a strong case against you.

Why is this Federal Conspiracy Article So Long?!

Federal criminal conspiracy charges are probably the most commonly used charges we see in federal court. They are also incredibly hard to defend against. That is because of the very lax evidentiary standards that prosecutors must meet to prove their case.

The real reason this article is so long? We defend federal criminal conspiracy cases every day for a living. This is just a small bit of the vast knowledge we have accumulated over the years of fighting for our clients in federal criminal conspiracy cases.

Learn more below.

Federal Conspiracy Lawyers at Evergreen Attorneys

• We only handle federal criminal defense cases and the most serious felonies. No DUIs, no family law, and no car wrecks.
• We only assign partner attorneys to represent our clients. No fresh-faced associates.
• We handle cases nationwide. We are not golfing buddies with the prosecutor and judge who are trying to lock you up.

Read below how the federal conspiracy lawyers in Denver at Evergreen Attorneys can help. Or better yet, pick up the phone and call us today at (303) 948-1489 or email us at [email protected].

What Is Criminal Conspiracy?

Defendants charged with conspiracy often insist that they never committed the offense prosecutors are describing. Others acknowledge they knew someone involved in criminal activity but deny participating in any plan. In both situations, the government may still pursue conspiracy charges.

Criminal conspiracy is an agreement between two or more people to commit a crime. The offense is outlined in U.S. statute 18 U.S.C. § 371 and is based on the idea that criminal activity becomes more dangerous when individuals work together toward a common unlawful objective. Courts have long recognized that organized criminal enterprises present greater risks than crimes committed by a single individual because group planning increases the likelihood, efficiency and effect of criminal conduct. Callanan v. United States, 364 U.S. 587, 593-94 (1961). 

Both Colorado and federal law criminalize conspiracy. Although the precise statutory language differs depending on the jurisdiction, conspiracy generally requires the government to prove three things: 

1) Proof that individuals agreed to pursue an

2) unlawful objective, and 

3) took steps toward carrying out that plan.

What makes conspiracy unique is that prosecutors don’t necessarily have to prove the underlying crime was successfully completed. In many situations, a person may face conspiracy charges even when the intended offense never occurred. The focus is on the agreement itself and the actions taken in furtherance of that agreement.

As a result, conspiracy charges frequently appear in cases involving drug trafficking, healthcare fraud, wire fraud, bank fraud, theft offenses, robbery, public corruption, and organized criminal enterprises. Federal prosecutors, in particular, routinely use conspiracy charges to pursue investigations involving multiple individuals.

How Prosecutors Prove Conspiracy

Again, to obtain a conviction, the government must generally establish the three essential elements: an agreement to commit an unlawful act, knowing and voluntary participation in that agreement, and an overt act in furtherance of the conspiracy.

Although these elements sound straightforward, conspiracy cases are often heavily fact-intensive criminal prosecutions because each element depends on inference and circumstantial evidence.

Scope and Duration of Federal Conspiracy

Conspiracy liability depends on the existence of an agreement and has limited scope and duration. Grunewald v. United States, 353 U.S. 391, 402 (1957). The scope is defined by the unlawful objective and extends only to those who knowingly join that objective, not those merely associated with its participants. United States v. Falcone, 311 U.S. 205, 210-11 (1940).

The duration of a federal conspiracy in Denver continues only so long as its central objective is pursued and ends on completion or abandonment of the objective. United States v. Kissel, 218 U.S. 601, 609 (1910). So, even proof of all three conspiracy elements does not establish liability unless those acts fall within the scope and duration of the charged armed bank robbery conspiracy. Id.

The Conspiracy Agreement

The agreement is the foundation of any federal criminal conspiracy case. Without an agreement, there can be no conspiracy. While an ‘agreement’ sounds like a formal commitment, the government can operate with much less than a contract, recorded meeting, or explicit statement in which participants formally agree to commit a crime.

These criminal agreements are rarely documented in such a direct manner, so instead, prosecutors typically attempt to prove an agreement through circumstantial evidence. So what evidence do prosecutors manufacture to try to prove their federal criminal conspiracy cases?

Admissible Evidence

Text messages, phone records, financial transactions, surveillance footage, travel records, and witness testimony can count as evidence that multiple individuals acted together toward a shared criminal objective. 

To prove the agreement element, the government also relies on patterns of conduct that appear coordinated rather than isolated. U.S. Supreme Court case American Tobacco illustrates this well. American Tobacco Co. v. United States, 328 U.S. 781, 789 (1946). There, companies refused to purchase tobacco in certain markets or enter new markets unless their competitors were also present. Id. at 814. As a result, attempts by outsiders to establish new markets failed because the defendants withheld participation Id. An agreement may be inferred from patterns of coordinated business without evidence of a devised plan in speech or writing. Because each company’s actions depended on the others’ participation, the inference of a coordinated scheme was made. Id. at 789.

This is an example of just how broad the evidence can be that is used to prove up the existence of an agreement for a federal conspiracy case.

Coordinated Acts as Evidence of Conspiracy Agreement.

Similarly, in United States v. Disla, the Court held an agreement existed where defendants engaged in coordinated actions surrounding a drug transaction. Disla, 805 F.2d 1340, 1349 (9th Cir. 1986). There, agreement included making calls under a pseudonym, hiding the existence of calls, and contacting co-conspirators on multiple occasions leading up to the crime. Id. at 1348. Such interdependent conduct proved a shared objective because a reasonable person could see Disla was scheming with the others, supporting the inference of an agreement. Id.

The idea of coordination under conspiracy law, while sometimes met with evidence like texts or phone conversations, is actually a difficult element to prove. This can create opportunities for the defense. Evidence that appears suspicious but not coordinated does not establish an unlawful agreement. Mere presence at the scene of a crime or association is insufficient to establish an agreement. Falcone, 311 U.S. 205, 210-11 (1940); United States v. Dinkane, 17 F.3d 1192, 1194-96 (9th Cir. 1994).

People may communicate, travel together, conduct business together, or associate socially without sharing criminal intentions. The existence of contact between individuals does not necessarily prove a federal criminal conspiracy. 

Additionally, the Court held mere association with conspirators without evidence of knowing participation was insufficient to establish agreement. Dinkane, 17 F.3d 1192, 1194-96 (9th Cir. 1994). The Court emphasized conspiracy liability requires proof of intent to join the plan, not simply presence or connection to those involved. Id. Participation in a crime, even as a getaway driver, does not establish conspiracy or accomplice liability without proof of knowing involvement in the criminal plan. Dinkane, 17 F.3d 1192, 1194-96 (9th Cir. 1994).

A skilled federal Colorado conspiracy attorney will often focus on whether the government’s evidence actually demonstrates a “meeting of the minds” or merely shows ordinary relationships and interactions that prosecutors have attempted to characterize as criminal.

Knowledge and Intent

Even if prosecutors can establish that a conspiracy existed, they must still prove that a particular defendant knowingly joined it. This requirement is often a heavily contested issue in conspiracy prosecutions. Mere association with individuals involved in criminal conduct is not enough. Likewise, mere presence at the scene of a crime generally does not establish participation in a conspiracy. Courts have consistently recognized that guilt by association is not a substitute for proof. The government must show that the defendant understood the essential nature of the criminal objective and intentionally chose to further it.

This distinction becomes particularly important in cases involving friends, family members, coworkers, or business associates. However, it is crucial to note that without knowledge, intent cannot exist. Ingram v. United States, 360 U.S. 672, 678 (1959). Where a defendant participates in a plan, intent can be inferred as long as the inference shows knowledge of the essential nature of the crime. United States v. Romero, 282 F.3d 683, 688 (9th Cir. 2002). Where the defendant lacks knowledge of the essential elements of the crime, or does not intend to further it, conspiracy liability is not met. Id. Courts distinguish between knowing participation and mere involvement in surrounding circumstances.

Mere Association is not Federal Conspiracy

In Falcone, the Court held suppliers who sold goods used in illegal distillation were not conspirators because they lacked knowledge of the broader unlawful plan. Falcone, 311 U.S. 205, 210-211 (1940). Knowledge of wrongdoing, not just association, is essential. Id.

Likewise, in Ingram, the Court clarified conspiracy liability requires the same level of intent as the underlying crime, meaning the defendant must actually intend to bring about the unlawful objective, not merely act in a way that incidentally assists it. Ingram, 360 U.S. 672, 678 (1959). There, the defendants participated in an illegal gambling operation, but only the organizers were liable for conspiracy, not the mere participants who lacked knowledge. Id.

Romero shows what sufficient knowledge and intent look like. Romero, 282 F.3d 683, 687-88 (9th Cir. 2002). There, the defendant repeatedly communicated with co-conspirators, arranged drug transactions, and understood his benefit depended on the success of the legal deal. Id. Even though the deal ultimately changed form, the Court held this informed involvement demonstrated he knew the scope of the conspiracy and intended to further it. Id.

Overt Act for Conspiracy

To prove conspiracy, there must be an overt act in furtherance of the unlawful agreement. 18 U.S.C. § 371; United States v. Harper, 33 F.3d 1143, 1148 (9th Cir. 1994); United States v. Rabinowich, 238 U.S. 78, 88-89 (1915). The act need not be criminal itself, but must be directed toward accomplishing the conspiracy. Harper, 33 F.3d at 88. Once the central objective of the conspiracy has been achieved, subsequent acts of concealment fall outside the scope of the conspiracy and cannot satisfy the overt act requirement. Grunewald, 353 U.S. 391, 402 (1957).

Post-Crime Concealment

Courts distinguish between acts that implement the criminal plan and those that merely conceal it after completion. In Rabinowich, defendants agreed certain business partners would enter bankruptcy and conceal assets. Rabinowich, 238 U.S. 78, 88-89 (1915). The Court explained an overt act is required to show the conspiracy has moved from agreement to execution. Id.

In Harper, defendants devised a plan to rob ATM workers by intentionally leaving cash stuck in the ATM so the machines would need to be serviced. United States v. Harper, 33 F.3d 1143, 1148 (9th Cir. 1994). The defendants were found waiting nearby in a parked car with tools for the robbery. Id. at 1145. The Court held the “bill trap” constituted an overt act because it was a step taken to implement the agreement. Id. at 1148. An overt act is met when the conduct moves the plan from mere discussion into execution. Id.

By contrast, the Court in Grunewald held post-crime concealment cannot extend a conspiracy, emphasizing once the target crime is complete, cover up efforts are not part of the conspiratorial agreement unless expressly planned. Grunewald, 353 U.S. 391, 402 (1957). In United States v. Green, the Court found concealment after completion of the offense did not qualify as an overt act. Together, these cases establish a clear boundary: carrying out the crime like in Harper satisfies the overt act requirement, whereas acts after completion of the underlying crime, aimed only at concealment, do not. Harper, 33 F.3d 1143, 1148 (9th Cir. 1994); Grunewald, 353 U.S. 391, 402 (1957); United States v. Green, 962 F.2d (9th Cir. 1992).

The Limits of Conspiracy Liability

Although conspiracy is broad, it is not unlimited.

Courts have emphasized that conspiracy liability extends only to conduct falling within the scope of the unlawful agreement. A defendant cannot automatically be held responsible for every action taken by every participant under all circumstances.

Similarly, conspiracy has a limited duration. A conspiracy generally continues only while participants are pursuing its central objective. Once that objective has been completed or abandoned, the conspiracy ordinarily ends.

This principle frequently arises when prosecutors attempt to rely on acts of concealment occurring after the underlying offense has already been completed. Courts have often distinguished between actions taken to carry out a criminal objective and actions taken later to hide what occurred. In many situations, post-crime concealment does not extend the duration of a conspiracy.

These limitations can become important defenses in complex cases involving lengthy investigations or multiple defendants.

The cases discussed above reflect a consistent principle: conspiracy law doesn’t punish mere association, presence, or parallel conduct. Rather, it requires proof of a shared criminal objective and intentional participation in advancing that objective.

Ultimately, conspiracy cases often turn less on the existence of suspicious conduct than on the government’s ability to connect that conduct to a specific unlawful agreement. As a result, questions concerning scope, duration, knowledge, and intent remain central to both the prosecution and defense of conspiracy charges.

Contact the Denvery Conspiracy Lawyers at Evergreen Attorneys Today

If you’re facing conspiracy charges or need help navigating a legal battle, don’t wait to seek legal assistance. Contact Evergreen Attorneys today for a confidential consultation. We’re here to help you understand your options and build a strong defense.

You may also call us at 303-948-1489 or email us at [email protected] to get in touch with an experienced federal conspiracy lawyer at Evergreen Attorneys today.

The cases discussed above reflect a consistent principle: conspiracy law doesn’t punish mere association, presence, or parallel conduct. Rather, it requires proof of a shared criminal objective and intentional participation in advancing that objective.

Ultimately, conspiracy cases often turn less on the existence of suspicious conduct than on the government’s ability to connect that conduct to a specific unlawful agreement. As a result, questions concerning scope, duration, knowledge, and intent remain central to both the prosecution and defense of conspiracy charges.

Contact the Denvery Conspiracy Lawyers at Evergreen Attorneys Today

If you’re facing conspiracy charges or need help navigating a legal battle, don’t wait to seek legal assistance. Contact Evergreen Attorneys today for a confidential consultation. We’re here to help you understand your options and build a strong defense.

You may also call us at 303-948-1489 or email us at [email protected] to get in touch with an experienced federal conspiracy lawyer at Evergreen Attorneys today.