UCMJ Article 81: Conspiracy

Article 81 of the Uniform Code of Military Justice, codified at 10 U.S.C. 881, punishes the criminal agreement itself. A service member commits conspiracy when two or more persons agree to commit an offense under the code and at least one of them performs an act to effect the object of that agreement. The offense reaches the danger of concerted criminal planning before the planned crime is ever completed, which is why conspiracy can be charged and punished separately from the underlying offense the conspirators set out to commit. The article tracks the structure of federal conspiracy law but operates entirely within the military justice system, applying to any offense punishable under the punitive articles.

The agreement and the overt act

Conspiracy under Article 81 has two core components: an agreement and an overt act. The government must prove that the accused entered into an agreement with at least one other person to commit an offense under the code, that the accused and at least one co-conspirator intended to commit that offense, and that one of the conspirators thereafter performed an overt act to effect its object.

The agreement need not be formal, written, or expressed in words. It can be a tacit understanding inferred from the conduct of the parties and the surrounding circumstances, because conspirators rarely announce their plans. What the law requires is a meeting of the minds on the criminal objective, not a signed compact. A person who is merely present when others plan a crime, or who knows of a plan without joining it, has not agreed to it.

The overt act is the feature that separates the military offense from a bare guilty thought. It must be an act that follows the agreement and is done to carry the agreement forward, but it need not itself be criminal. An entirely lawful step, such as buying an ordinary tool, renting a vehicle, or making a phone call, satisfies the requirement if it is taken to advance the planned offense. The act need not be substantial or bring the plan close to fruition; a single act by any one conspirator is enough to fix liability on all of them, because each is treated as having authorized the acts of the others within the scope of the agreement.

Maximum punishment

The maximum punishment for conspiracy is, with one critical exception, the same as the maximum authorized for the offense that was the object of the conspiracy. A conspiracy to commit robbery is punishable up to the maximum for robbery; a conspiracy to commit larceny up to the maximum for larceny. The exception is the death penalty: conspiracy may never be punished by death, even when the target offense is capital. The punishment for the agreement is thus capped at the punishment for the completed crime, and conspiracy is never the more severe of the two. Where the conspiracy contemplates more than one offense, the maximum is set by the most serious object offense. Because the Manual for Courts-Martial states maximum punishments by reference to the object offense, the governing figure in any case is the current maximum for that underlying article, which should be confirmed against the current Manual.

The Pinkerton rule: liability for a co-conspirator’s crimes

Beyond punishing the agreement, conspiracy extends each member’s liability to the substantive crimes the others actually commit. Under the principle drawn from Pinkerton v. United States and applied in the military, a conspirator is criminally responsible for offenses committed by co-conspirators that fall within the scope of the agreement, are committed in furtherance of it, and are reasonably foreseeable as a natural and probable consequence of the conspiracy. A member who never touched the stolen property or fired the weapon may still be convicted of the theft or the assault carried out by a confederate, so long as that crime was a foreseeable outgrowth of the shared plan. The limiting condition is foreseeability: a co-conspirator is not liable for a crime that lies outside the agreed objective and could not reasonably have been anticipated.

Withdrawal and other defenses

Withdrawal is the defense most closely associated with conspiracy, and it is narrow. To withdraw effectively, the accused must take an affirmative, definite step to disavow the agreement and communicate that abandonment to the co-conspirators, or otherwise act to defeat the object of the conspiracy. Simply ceasing to participate, or quietly hoping the plan fails, does not suffice. The timing matters: withdrawal before any overt act has been committed by any member can defeat the conspiracy charge entirely, because the offense is not complete until the overt act occurs. After an overt act has been committed, the conspiracy is complete and withdrawal no longer erases liability for the agreement itself, though it can cut off the withdrawing member’s responsibility for later acts of the others.

Other defenses contest the elements directly. The defense may show that no genuine agreement existed, that what looks like a coordinated scheme was parallel but independent conduct, or that the accused lacked the intent to further the criminal objective. Entrapment can arise where a government agent or informant originated the criminal design and induced an otherwise unwilling person to join it, as distinguished from merely providing an opportunity to someone already disposed to commit the offense.

How conspiracy is charged in relation to other offenses

Conspiracy is a distinct offense, separate from the crime the conspirators planned. A service member may be convicted and separately punished for both the conspiracy and the completed object offense arising from the same plan, because the two punish different wrongs: the agreement and collective endeavor on one hand, the substantive harm on the other. This is the ordinary rule rather than a double-jeopardy violation.

Conspiracy is also distinct from related inchoate offenses. Solicitation under Article 82 is a one-sided act, complete when one person advises or urges another to commit an offense, whether or not the other agrees; conspiracy requires a mutual agreement and an overt act. Attempt under Article 80 requires an overt act amounting to a substantial step beyond mere preparation toward a single actor’s own commission of the crime; conspiracy can rest on a far slighter act and turns on the joint agreement rather than how close the accused came to completing the offense alone. Because conspiracies are by nature secretive, agreements are commonly proven through circumstantial evidence and the coordinated conduct of the participants, and statements of one conspirator made during and in furtherance of the conspiracy may be admitted against the others under the rules of evidence.

Sources

• 10 U.S.C. 881 (Article 81, Conspiracy): https://www.law.cornell.edu/uscode/text/10/881
• 10 U.S.C. 882 (Article 82, Solicitation, for the conspiracy/solicitation boundary): https://www.law.cornell.edu/uscode/text/10/882
• 10 U.S.C. 880 (Article 80, Attempts, for the conspiracy/attempt boundary): https://www.law.cornell.edu/uscode/text/10/880

This article is for general informational purposes only and is not legal advice. It describes military law and procedure of public record, does not address any individual case, and does not create an attorney-client relationship.