The Preponderance Predicate-Facts Finding for Co-Conspirator Statements

What Predicate Facts Must the Judge Find?

A co-conspirator statement is admissible under Rule 801(d)(2)(E) only after the court finds a set of preliminary facts, called the predicate. The government, as the party offering the statement, carries the burden, and the judge — not the jury — decides whether that burden is met.

The Fifth Circuit states the predicate as four findings: the existence of a conspiracy; that the statement was made by a member of that conspiracy; that it was made during the course of the conspiracy; and that it was made in furtherance of it. The defendant against whom the statement is offered must also have been a member of the same agreement. The en banc court's original formulation in the circuit's controlling James decision compressed these into three inquiries by treating “during and in furtherance” as one, but the substance is identical.

If any element is missing — the conspiracy had already ended, the speaker was a stranger to it, or the remark did nothing to advance it — the statement is ordinary hearsay barred by Rule 802. These predicate facts are not the elements of the charged conspiracy count. A speaker can be a “coconspirator” for evidentiary purposes even where no conspiracy is charged, because the rule reaches any joint venture. The finding governs admissibility, not guilt.

Who Decides, and Under What Standard of Proof?

The predicate is a preliminary question of admissibility for the judge under Rule 104(a), decided by a preponderance of the evidence. That is a “more likely than not” standard — far lower than the beyond-a-reasonable-doubt burden the jury later applies to the charge, and it explains why a statement can be admitted long before the government has proven anyone guilty of anything.

The Supreme Court fixed the preponderance standard for these findings, and the Fifth Circuit applies it directly. In United States v. Solis, the court restated that the proponent must prove, by a preponderance, the existence of a conspiracy, that the statement was made by a co-conspirator, that it was made during the conspiracy, and that it was made in furtherance of it. When the parties dispute the predicate, United States v. Fragoso confirms the offering party must carry that preponderance burden.

Because Rule 104(a) provides that the court “is not bound by evidence rules, except those on privilege,” the judge may look at material that would not itself be admissible before the jury. That single feature drives much of the analysis that follows: it is the reason the court can weigh the very statement whose admissibility is in question.

May the Court Consider the Statement Itself?

Yes, but not by itself. The older rule required “independent” evidence and forbade the court from looking at the challenged statement at all. The Supreme Court changed that in Bourjaily v. United States, holding that the court may consider the contents of the proffered statement when deciding whether the conspiracy and membership were shown. The Fifth Circuit adopted the same approach in United States v. Ruiz, which confirms that the district court may weigh the co-conspirator statements themselves in deciding whether the government met its burden.

There is a firm limit. The 1997 amendment to Rule 801(d)(2)(E) codified Bourjaily and its boundary: the statement “must be considered but does not by itself establish” the existence of the conspiracy or a defendant's participation in it. In United States v. Mendoza-Medina, the Fifth Circuit applied that limit, holding that although the court considers the statement's contents, they alone cannot establish the conspiracy and the declarant's and defendant's participation.

The practical upshot is a two-part inquiry. The judge may read the statement for what it suggests about the conspiracy, but the government must also put forward some corroborating circumstance — the speaker's identity, the context, or other proof — that, together with the statement, tips the scale past a preponderance. A prosecution that offers nothing but the words it wants admitted has not met the predicate.

How Each Predicate Fact Is Established

The four findings are proven with different kinds of evidence, and a defense challenge usually targets the weakest one. The table sorts each predicate fact, the typical proof, and the common line of attack.

Because the judge weighs all of this by a preponderance, the defense does not have to disprove the conspiracy. It has to show the government's showing on one required fact falls short of more-likely-than-not, which is often easiest on membership or timing.

What Counts as Enough Proof of the Conspiracy and Membership?

The government need not prove a formal or written agreement; a tacit understanding to pursue an unlawful objective is enough, and it can be inferred from conduct. But inference has limits, and the membership finding is where many predicates fail. A person who merely knows about a conspiracy, or who happens to act in a way that helps it, has not thereby joined it.

The declarant's membership matters as much as the defendant's. If the speaker turns out to have been an outsider — a customer, a hanger-on, or an informant recounting what others did — the statement is not a co-conspirator's statement at all, no matter how incriminating. Courts therefore look for proof that the speaker had a stake in the venture and spoke as a participant advancing it.

Corroboration is central after Bourjaily. The Advisory Committee note to Rule 801 directs the court to consider “the circumstances surrounding the statement, such as the identity of the speaker, the context in which the statement was made, or evidence corroborating the contents of the statement.” A recorded remark that names roles, quantities, or routes, backed by surveillance or seized records that match it, will usually satisfy the predicate. A vague or ambiguous aside, standing alone, will not.

Standard of Review and Preserving the Issue

On appeal, the Fifth Circuit reviews the decision to admit a co-conspirator statement for abuse of discretion, and reviews the underlying factual findings — whether the conspiracy existed and who belonged to it — for clear error. Solis illustrates both layers: the admission ruling is discretionary, but the supporting findings must not be clearly erroneous. That deference makes the trial record decisive, so the defense should build its objections there rather than hope to win the point for the first time on appeal.

Preservation is a recurring trap. The trial court is not required to hold a separate hearing outside the jury's presence, and it may defer its ruling. Fragoso holds that a James hearing outside the jury is not required and that a court's failure to make express predicate findings can be harmless where the record shows a conspiracy — for instance, when the court denies a motion for judgment of acquittal and thereby implicitly finds the evidence sufficient.

To keep the issue alive, counsel should object when the statement is offered, ask the court to make its Rule 801(d)(2)(E) findings on the record, and renew the objection at the close of the evidence. A clear request for findings forces the court to confront each predicate fact and gives the appellate court something concrete to review.

Why the Predicate Finding Is Not a Finding of Guilt

It is easy to confuse the judge's predicate finding with the jury's verdict, but they answer different questions under different standards. The judge decides only whether the statement clears the admissibility bar by a preponderance. The jury decides, beyond a reasonable doubt, whether the defendant is guilty of the charged offense — and it is free to disbelieve the very statement the judge admitted.

This separation protects the defendant in two ways. First, the low preponderance standard governs only what the jury may hear, not what it must accept; the defense can still attack the statement's weight, the speaker's credibility, and the inferences the government draws from it. Second, because the finding is the judge's, an erroneous admission is a legal error reviewable on appeal, not a matter buried in a general verdict.

Understanding that divide shapes strategy. At the admissibility stage, the goal is to defeat one predicate fact by a preponderance — usually membership or the “during and in furtherance” timing. If the statement comes in anyway, the same facts that made it a close call for the judge become the argument that the jury should give it little or no weight. A federal defense lawyer works both stages, because the statement's admission and its persuasive force are separate battles.

Where This Fits

This guide is one of four situations that arise under the James Hearing (Co-Conspirator Statements). Start with the parent motion for the overall framework, or move to a related fact pattern:

What the Case Law Says

These decisions—verified against primary sources—control how this issue is litigated. Every case still turns on its own facts.

• United States v. Fragoso, 978 F.2d 896 (5th Cir. 1992) — Disputed predicate facts must be proven by a preponderance; a James hearing outside the jury's presence is not required.
• United States v. Ruiz, 987 F.2d 243 (5th Cir. 1993) — The district court may consider the co-conspirator statements themselves in deciding whether the government proved the conspiracy by a preponderance.
• United States v. Solis, 299 F.3d 420 (5th Cir. 2002) — The proponent must prove the conspiracy, membership, and that the statement was made during and in furtherance, each by a preponderance.
• United States v. Mendoza-Medina, 346 F.3d 121 (5th Cir. 2003) — Although the court weighs the statement's contents, they alone cannot establish the conspiracy or the parties' participation; independent evidence is required.

General summaries of published opinions for information only — not predictions about any specific case.