The co-conspirator hearsay exception, codified at Federal Rule of Evidence 801(d)(2)(E), lets prosecutors use one conspirator’s out-of-court statements as evidence against every other member of the conspiracy, without calling the speaker to the stand. The rule treats those statements not as hearsay with an exception attached, but as words that are simply not hearsay at all, because agency principles treat co-conspirators as speaking for one another when they act toward a shared criminal goal.1Legal Information Institute. Federal Rules of Evidence Rule 801 – Definitions That Apply to This Article; Exclusions from Hearsay To get a statement in, the government must show three things by a preponderance of the evidence: a conspiracy existed, the speaker and the defendant were both members, and the statement was made during and in furtherance of it.
The Three Elements the Government Must Prove
Rule 801(d)(2)(E) provides that a statement qualifies when it is offered against an opposing party and “was made by the party’s coconspirator during and in furtherance of the conspiracy.” The prosecution does not need to have charged conspiracy in the indictment for the rule to apply. The Senate Judiciary Committee’s notes confirm that a joint venturer counts as a co-conspirator for these purposes “even though no conspiracy has been charged.”1Legal Information Institute. Federal Rules of Evidence Rule 801 – Definitions That Apply to This Article; Exclusions from Hearsay Informal partnerships and uncharged agreements are enough.
A boundary worth noting: the rule runs one way. Because the statement must be “offered against an opposing party,” a defendant cannot use 801(d)(2)(E) to introduce helpful remarks a co-conspirator made in the same conversations. The exception exists to let the prosecution use conspirators’ words against each other, not to let the defense mine those conversations for favorable material.
What “During” and “In Furtherance” Mean
Timing is doing most of the work. A statement qualifies only if it was spoken while the conspiracy was still active, meaning after the agreement formed and before the group’s main objectives were either accomplished or defeated. Statements outside that window fall outside the rule.
“In furtherance” filters out remarks that happen to occur during the conspiracy but do nothing to advance it. Coordinating logistics, updating members on progress, recruiting new participants, and reassuring a wavering member all count. Courts consistently reject what they call idle chatter and casual admissions that merely describe past events. A conspirator bragging to a friend about a completed robbery is narrating history, not moving the scheme forward.
The Concealment Trap
Statements made to cover tracks after the crime is done regularly get thrown out. In Krulewitch v. United States, the Supreme Court rejected the government’s attempt to admit statements under a theory of “an implied but uncharged conspiracy aimed at preventing detection and punishment,” calling it an impermissible expansion of the hearsay rule.2Legal Information Institute. Krulewitch v United States, 336 US 440 (1949) Concealment-phase statements come in only when concealment was part of the plan from the start, not tacked on after the crime was complete.
When the Conspiracy Ends
A conspiracy is considered over for purposes of this rule once its principal objectives have been accomplished or thwarted. The advisory committee notes to Rule 801 endorse this approach, citing Krulewitch and Wong Sun v. United States for “denying admissibility to statements made after the objectives of the conspiracy have either failed or been achieved.”1Legal Information Institute. Federal Rules of Evidence Rule 801 – Definitions That Apply to This Article; Exclusions from Hearsay
Arrest is a clear termination event for the person arrested. Post-arrest admissions to law enforcement are not “in furtherance” of anything; the Supreme Court has treated a post-arrest confession as a frustration of the criminal enterprise rather than an advancement of it.
Withdrawal is the defendant’s own way out. A defendant who withdrew from the conspiracy before a statement was made cannot have that statement used against them under the exception. But withdrawal takes more than losing interest or quietly stepping back. Federal courts expect “definite, positive” steps inconsistent with the conspiracy’s purpose, together with reasonable efforts to communicate the withdrawal to the other members.3United States Courts for the Ninth Circuit. 8.24 Withdrawal From Conspiracy – Model Jury Instructions Defendants rarely clear that bar.
How the Judge Decides Admissibility
The judge, not the jury, decides whether the foundation is met. Under Federal Rule of Evidence 104(a), the court resolves preliminary questions about admissibility and is not bound by the rules of evidence, except privilege rules, in doing so.4Federal Rules of Evidence. Rule 104 – Preliminary Questions The judge can consider material that would otherwise be inadmissible, including the co-conspirator’s statement itself.
The standard is preponderance of the evidence. In Bourjaily v. United States, the Supreme Court held that “when the preliminary facts relevant to Rule 801(d)(2)(E) are disputed, the offering party must prove them by a preponderance of the evidence.”5Legal Information Institute. Bourjaily v United States, 483 US 171 (1987) That is a much lower bar than the reasonable-doubt standard the jury applies to guilt. The judge only needs to find it more likely than not that a conspiracy existed and that the statement was made during and in furtherance of it.
James Hearings
Defense attorneys often file pretrial motions asking the court to rule on admissibility before the jury hears anything. These are commonly called James hearings, after the case that established the procedure. At a James hearing, the government must show all three foundational elements up front. The defense’s argument is practical: if the court admits a statement and the government later fails to connect the defendant to the conspiracy, an instruction telling the jury to disregard what it heard is often wishful thinking.
Conditional Admission at Trial
Courts frequently admit co-conspirator statements conditionally during trial, subject to the government “connecting them up” later with foundation evidence. The judge then makes a final determination at the close of evidence, weighing everything presented and resolving credibility disputes. If the foundation has not been laid by then, the statements have to come out, one way or another.
The Statement Cannot Prove the Conspiracy by Itself
One of the most contested issues is bootstrapping: can the co-conspirator’s statement itself prove that the conspiracy existed? That would be circular. Current law splits the difference. Bourjaily held that courts may “examine the hearsay statements sought to be admitted” when making the preliminary determination.5Legal Information Institute. Bourjaily v United States, 483 US 171 (1987) The statement can be part of the analysis but cannot be the whole of it.
Rule 801(d)(2) codifies that limit. The co-conspirator’s statement “must be considered but does not by itself establish the existence of the conspiracy or participation in it.”1Legal Information Institute. Federal Rules of Evidence Rule 801 – Definitions That Apply to This Article; Exclusions from Hearsay The court needs independent corroboration: the identity of the speaker, the context, physical evidence, surveillance, testimony from other witnesses, or the defendant’s own conduct. If a recorded call references a drug shipment arriving Tuesday and the defendant shows up at the delivery location that day, that is the kind of corroboration courts want to see. The amount required is not overwhelming; combined with the statement’s contents, it need only tip the scales past fifty percent.
The Confrontation Clause
The Sixth Amendment guarantees a criminal defendant the right “to be confronted with the witnesses against him.” Admitting out-of-court statements from a speaker the defendant cannot cross-examine looks like a direct collision with that right, but the Supreme Court has held that co-conspirator statements do not violate the Confrontation Clause because they are not “testimonial.”
Crawford v. Washington reworked Confrontation Clause analysis in 2004, and in doing so noted that most traditional hearsay exceptions “covered statements that by their nature were not testimonial — for example, business records or statements in furtherance of a conspiracy.”6Justia US Supreme Court. Crawford v Washington, 541 US 36 (2004) Testimonial statements are those made with legal proceedings in mind, like formal police interrogations or affidavits. Co-conspirators typically speak to advance a crime, not to build a record for a future trial, so the clause does not bar their admission.
Where Bruton Draws a Different Line
A related but distinct Confrontation Clause problem arises in joint trials. In Bruton v. United States, the Supreme Court held that admitting a non-testifying co-defendant’s confession in a joint trial violates the other defendant’s confrontation rights when that confession directly implicates them, because it adds powerful evidence “in a form not subject to cross-examination.”7Legal Information Institute. US Constitution Annotated – Confrontation Clause Cases During the 1960s Through 1990s
The practical line to keep in mind: a statement that qualifies under 801(d)(2)(E), made during and in furtherance of the conspiracy, is generally non-testimonial and falls outside Bruton. A post-arrest confession to police by the same person is testimonial, sits outside the co-conspirator exception because it was not made in furtherance of anything, and triggers Bruton if the government tries to use it in a joint trial.