Concept
Judgment of Acquittal
Burdens of proof and persuasion
Judgment of Acquittal
The sufficiency standard taught above says what a court must ask about the prosecution's proof, and Rule 29 of the Federal Rules of Criminal Procedure supplies the procedure for asking it. A burden of production means little if nothing enforces it. Without an enforcement device, a case in which the prosecution offered nothing on an element would travel to the jury like any other, and a verdict returned on that record would stand unless some later check existed. Rule 29 supplies both checks, because the court "must enter a judgment of acquittal of any offense for which the evidence is insufficient to sustain a conviction."1 That single directive lets the court take a legally insufficient case away from the jury before a verdict and set aside a verdict that rests on one afterward, which makes the rule the working edge of the prosecution's burden of production.
Three procedural moments carry that directive, and each is taught below: a motion made during trial, a motion made after the verdict, and the conditional ruling on a new trial that accompanies an acquittal entered after a guilty verdict.2 All three ask the same substantive question. The court views the evidence in the light most favorable to the government, remembers that the jury alone judges credibility, resolves conflicts in the testimony, and draws reasonable inferences, and then decides whether a rational trier of fact could have found the essential elements beyond a reasonable doubt.3 The judge's own view of guilt therefore does not decide the motion, and the question to hold on to is whether any rational juror could convict. Because the standard leaves the jury so much room, defendants lose most of these motions.4
Rule 29 also carries a consequence that ordinary evidentiary rulings do not. When a jury acquits, the case is over and the government may not appeal.5 A judgment of acquittal for insufficient evidence has the same character, because a court deciding whether a ruling is an acquittal asks what the ruling actually decided, whatever label the trial judge used, and a ruling that the evidence cannot support a conviction resolves guilt in the defendant's favor.6 The motion can be entertained only after the evidence on either side is closed, a stage that comes well after jeopardy has attached, so the government gets no second attempt at proof once the court has found its case insufficient.7 Nor can the government complain that the judge rather than the jury made the call. The Advisory Committee that framed the rule observed that permitting a judgment of acquittal after the jury is discharged works no undue prejudice on the prosecution, since the constitutional jury-trial right belongs primarily to the defendant and the government has no constitutionally sanctioned interest in receiving a verdict from the jury.8 How that finality operates when the court sets aside a guilty verdict is taken up with the post-verdict motion, and the sections below follow the three moments in the order they occur.
Motions During Trial
Rule 29(a) opens two windows during trial for the defense to challenge the sufficiency of the government's proof: one after the government closes its evidence and one after the close of all the evidence.10 At either point the court, on the defendant's motion, must enter a judgment of acquittal of any offense for which the evidence is insufficient to sustain a conviction.11 The mandatory verb follows from the structure of the burden. The prosecution carries the burden of production on every element, and a record in which some element has no evidence a reasonable juror could credit is a failure of proof as a matter of law, so the judge has no discretion to send the case to the jury and hope for the best. The rule also lets the court consider on its own whether the evidence is insufficient.12 A court that notices a failure of proof therefore need not wait for counsel to point it out, although the duty to rule arises when the defendant moves.
The two windows exist because the record changes as the trial proceeds. At the close of the government's case, the question is whether the prosecution's evidence in chief, even if believed, establishes guilt beyond a reasonable doubt, and the defendant is entitled to acquittal if it does not.13 The defense need present nothing to win that motion, since the burden of proof on every essential element rests on the prosecution.14 A motion at the close of all the evidence asks the same question about a larger record, which may now include defense testimony that cures a weakness in the government's case. In both windows the court applies the production standard: it asks whether a reasonable juror could find the element beyond a reasonable doubt, and it grants the motion only when none could, regardless of what the judge personally thinks.15
If the court denies the motion at the close of the government's evidence, the defendant may offer evidence without having reserved the right to do so.16 That sentence removes a dilemma. A defendant who believes the government's case is thin would otherwise have to weigh the chance of an acquittal ruling against the risk that calling witnesses would give up the challenge, and the only way to avoid the choice would be to rest without a defense. Under the rule, the defendant can make the motion, lose it, and go forward with a defense, knowing that the motion at the close of all the evidence remains available. The price of putting on a defense is that the later motion is judged on everything in the record, including whatever the defense witnesses added.
Rule 29(b) adds a short follow-on: the court need not rule at once. It may reserve decision, continue the trial, submit the case to the jury, and decide the motion before the verdict, after a guilty verdict, or after the jury is discharged without a verdict.17 Reserving has a practical payoff, because a jury acquittal makes any ruling unnecessary, while a later ruling for the defendant after a guilty verdict preserves the prosecution's right to appeal it.18 The limit on reservation is the part students lose: a court that reserves must decide the motion on the evidence at the time the ruling was reserved.19 Without that limit, a judge who doubted the government's proof at the close of its case could wait, watch the defense supply the missing link, and then deny the motion on the strength of the defendant's own witnesses. The time-of-reservation rule keeps a reserved motion exactly as strong as it was when made, so deferring the ruling costs the defendant nothing.
One federal district judge applied these pieces in a prosecution for soliciting a violent federal crime. The defendant moved for acquittal at the close of the government's case, at the close of all the evidence, and again after the verdict, and the judge reserved decision during trial while the jury went on to return a guilty verdict.20 Because the defense called no witnesses, the evidence relevant to all three motions was the same, so the judge could rule on a single record, and the judge found that no reasonable jury could have found either required element and entered a judgment of acquittal.21 The absence of defense evidence is what made that case simple, since a defense case would have split the record in two.
Motions After Verdict
Subdivision (c) of Rule 29 supplies the last of the three moments at which a defendant can test the sufficiency of the evidence, and it operates after the jury has returned a verdict or been released. A defendant may move for a judgment of acquittal, or renew an earlier motion, within 14 days after a guilty verdict or after the court discharges the jury, whichever is later.23 The two verbs describe two different defendants. One moved during trial and lost, or had the ruling reserved, and now presses the point on the complete record, while the other made no motion at all and raises the insufficiency for the first time. The fixed period has a functional reason. The judge who presided over the trial is the one deciding whether the evidence could support the verdict, and a short deadline keeps that question before the judge while the record is fresh and lets the case reach a close instead of staying open indefinitely.
The trigger is whichever is later, and that phrase settles how to count when the two events fall on different days. The verdict and the discharge are separate events that need not occur on the same day, and starting the clock at the later one means the defendant is never shortened because one event happened early. When the jury returns no verdict, there is no guilty verdict to count from, so the discharge is the only event that starts the period. In every situation the defendant receives the full 14 days measured from the later event, and a motion filed after that period comes too late.
Rule 29(c)(3) removes a trap that the timing rule might otherwise suggest. A defendant is not required to have moved for acquittal before the court submitted the case to the jury as a prerequisite for making the motion after the jury is discharged.24 The reason lies in what the motion enforces. The prosecution carries the burden of production on every element whether or not defense counsel asks the court to check it, and a defense that overlooked the point at the close of the government's case should not lose the chance to have the court check it once the verdict is in. Earlier motions still have value, since a ruling before the verdict can end the case without any jury decision, but the post-verdict motion does not depend on them.
Once a timely motion is before the court, Rule 29(c)(2) says what the court may do with it. If the jury returned a guilty verdict, the court may set the verdict aside and enter an acquittal, and if the jury failed to return a verdict, the court may enter a judgment of acquittal.25 The question the court asks is the sufficiency question already taught: viewing the evidence in the light most favorable to the government, and remembering that the jury alone judges credibility, resolves conflicts, and draws reasonable inferences, could a rational trier of fact have found the essential elements beyond a reasonable doubt?26 The solicitation prosecution described in the previous section shows the sequence. The defendant had moved at each stage of trial and again after the guilty verdict, and the judge, finding that no reasonable jury could have found either required element, entered a judgment of acquittal despite the verdict.27 The no-verdict branch exists for a structural reason. Without it, a deadlocked jury would leave alive a prosecution that the evidence could never support, and the defendant would face retrial on a record that is legally insufficient.
In practice these motions are made often and granted rarely.28 The standard explains why. The jury has already accepted the government's version of the evidence, and the judge may not substitute a different view of credibility or inference, so the motion succeeds only when the judge can say that no rational juror could have convicted. A record on which a jury could reasonably go either way never meets that description, which is why the question to carry into every post-verdict motion is whether any rational juror could convict, never whether the judge would have.
What the government may do about a successful motion depends on what the jury did first. A court deciding whether a ruling is an acquittal looks at what the ruling actually decided rather than at the label the trial judge used, and a ruling that the evidence cannot support a conviction resolves guilt in the defendant's favor.29 Where the jury was discharged without a verdict, the only route to conviction after an acquittal would be a second trial, and United States v. Martin Linen Supply Co. treated a Rule 29(c) acquittal entered after the jury's discharge as final, observing that the motion arises well after jeopardy has attached and that the government has no constitutionally sanctioned interest in a verdict from the jury.30 Setting aside a guilty verdict leaves the jury's finding of guilt in the record, so a reviewing court that disagreed with the trial judge could reinstate the verdict without a new trial, which is why the previous section noted that a ruling for the defendant after a guilty verdict leaves the government a right to appeal. The difference tracks a comparison the Court drew: the government's interest in preserving a conviction fairly obtained is far greater than its interest in reprosecuting after a deadlock and a judgment of acquittal.31 Because an acquittal entered after a guilty verdict can be reversed on appeal, the court must also say whether a new trial should follow if that happens, which is the conditional ruling taught next.
Conditional New Trial Rulings
A judgment of acquittal entered after a guilty verdict may not end the case, because the government can appeal it and the appellate court may decide that the evidence was sufficient after all. Rule 29(d) plans for that possibility. When the court enters a judgment of acquittal after a guilty verdict, it must also decide, conditionally, whether any motion for a new trial should be granted if the acquittal is later vacated or reversed, and it must specify the reasons for that determination.33 The ruling is conditional because it operates only if the acquittal is undone. While the acquittal stands, the new-trial question has no practical consequence.
The two requirements answer different problems. Requiring the ruling at the moment of acquittal avoids a second trip to the trial court, since the judge who has just presided over the trial is well placed to decide the new-trial question, and a reversal on appeal need not send the case back for a decision that could have been made already. Requiring reasons gives the appellate court something to review, so it can evaluate the new-trial determination alongside the acquittal instead of guessing at what lay behind it.
The conditional order leaves the acquittal itself untouched. The rule states that an order conditionally granting a new trial does not affect the finality of the judgment of acquittal.34 The provision matters because a conditional grant could otherwise look like a first step toward retrying a defendant the court has just acquitted. The conditional order does not undercut the acquittal: it sits dormant unless an appellate court vacates or reverses the acquittal, and only then does it bear on what happens next.
What follows a reversal depends on which way the conditional ruling went. If the court conditionally granted a new trial and an appellate court later reverses the judgment of acquittal, the trial court must proceed with the new trial unless the appellate court orders otherwise.35 If the court conditionally denied a new trial, the appellee (the defendant, when the government appeals the acquittal) may assert that the denial was erroneous, and if the appellate court reverses the acquittal, the trial court must proceed as the appellate court directs.36 The denial branch supplies a vehicle the defendant would otherwise lack. A defendant who won the acquittal has no ordinary reason to appeal, yet a conditional denial that could never be challenged would be final even though the acquittal it accompanied was gone. Letting the appellee raise the point within the government's appeal allows the appellate court to resolve the acquittal and the new-trial question together.