Entrapment as a Jury Question vs. Dismissal of the Charges

Why Entrapment Is Almost Always a Jury Question

Entrapment entered federal law through Sorrells v. United States, and it arrived shaped for the jury box. The Court held the defense available when the criminal design originates with government officials who implant in an innocent person’s mind the disposition to commit the offense, and it held that the trial court erred by refusing to submit the issue to the jury once the evidence was sufficient.

Sorrells also fixed the procedural frame that still controls. The defense is not a plea in bar filed against the indictment; it is raised under a plea of not guilty and tried together with the general issue of guilt. A defendant who invokes it opens himself to a searching inquiry into his own conduct and predisposition — which is precisely why the issue resists resolution on paper.

The Supreme Court reaffirmed the allocation in Mathews v. United States: the question of entrapment is generally one for the jury rather than for the court. Predisposition — whether the defendant was an unwary innocent or an unwary criminal — turns on motive, willingness, and credibility, the classic raw material of jury fact-finding.

So the realistic goals come in sequence. First, earn the instruction by making a threshold showing. Second, argue entrapment to the jury. Only in the exceptional case where the record leaves nothing to weigh does entrapment become a question the judge must answer, and that exception is the subject of the Sherman line discussed below.

Why Courts Will Not Dismiss the Indictment for Entrapment Before Trial

Federal procedure gives entrapment no pretrial exit. Rule 12(b)(1) permits pretrial motions only on issues “that the court can determine without a trial on the merits,” and Rule 12(b)(3) lists the defenses that must be raised early — improper venue, preindictment delay, selective or vindictive prosecution, defects in the indictment, suppression of evidence. Entrapment is conspicuously absent, because predisposition cannot be decided without trying the case.

That is the key structural contrast with the due-process theory covered on the companion page about the outrageous-conduct standard. A due-process attack on the government’s own behavior presents a question of law a judge can resolve before trial; entrapment asks who the defendant was before the agents arrived, which is a guilt question reserved to the jury.

The practical consequences follow. A defendant banking on entrapment should expect to go to trial, and decisions that surrender the trial — most importantly a guilty plea — surrender the defense along with it. Counsel weighing a plea offer against a viable entrapment theory are pricing the loss of the defense itself, not just a sentencing argument.

None of this makes the pretrial period idle. Discovery aimed at the informant’s instructions, the recorded first contacts, and the government’s file on the defendant before the approach builds the inducement showing, and motion practice can force early production of the very materials the instruction request will later stand on.

Earning the Entrapment Instruction: The Prima Facie Showing

To move entrapment from theory to the jury charge, the Fifth Circuit requires a prima facie showing. Under United States v. Theagene, the defendant must present evidence of two things: his lack of predisposition to commit the offense, and government involvement and inducement more substantial than simply providing an opportunity or facilities.

The measure of sufficiency is jury-shaped: whether the inducement and predisposition evidence, considered together, would permit a reasonable jury to find entrapment — the standard the Supreme Court set in Mathews. Critically, at this stage the court construes the evidence in the light most favorable to the defendant, the mirror image of the usual appellate posture, and a refusal to give the instruction is reviewed de novo.

Inducement means the creative activity of law enforcement in spurring a person to crime. Ordinary undercover work, artifice, and stratagem do not qualify; courts have found inducement in harassment, threats, conduct designed to exploit a defendant’s weaknesses, and persistent pleas based on need, sympathy, or friendship. Theagene itself vacated a conviction because the district court withheld the instruction from a defendant who had made the required showing.

Once the instruction is given, the burden shifts: the government must prove beyond a reasonable doubt that the defendant was predisposed before first contact. What that predisposition fight looks like — the kinds of evidence that prove or rebut readiness — is treated in depth on the companion predisposition page. Here the point is procedural: the threshold showing buys a jury question; it does not buy a ruling.

Entrapment as a Matter of Law: Sherman and the Masciale Contrast

Two decisions issued the same day in 1958 still mark the boundary between a jury question and a court-ordered acquittal. In Sherman v. United States, the Supreme Court found entrapment established as a matter of law; in Masciale v. United States, on facts pointing the other way, it held the issue was properly left to the jury.

Sherman turned on the government’s own proof. An informer met a recovering addict in treatment and, through repeated appeals to sympathy, induced him to obtain narcotics. The decisive testimony came undisputed from the prosecution’s witnesses; the Court stressed that it was not choosing between conflicting witnesses or judging credibility, drew its line between the trap for the unwary innocent and the trap for the unwary criminal, and held that stale prior convictions — nine and five years old — could not prove present readiness. The judgment was reversed with instructions to dismiss the indictment.

Masciale shows the default. The defendant himself supplied the only testimony about a campaign of persuasion by a government informer, while the agent described a willing seller. Because the jury was entitled to disbelieve the defendant’s account, submitting the issue to the jury was proper, and the conviction stood.

The lesson for the defense is architectural: entrapment as a matter of law is built out of the government’s case, not the defendant’s say-so. Cross-examination that makes the inducement story undisputed is worth more than testimony that merely contradicts it.

Can You Deny the Crime and Still Claim Entrapment?

For decades the government argued that entrapment carried an admission price: to claim it, the defendant had to concede the crime. Mathews v. United States ended the debate, holding that a defendant may deny one or more elements of the offense and still receive an entrapment instruction whenever the evidence would let a reasonable jury find entrapment.

The Fifth Circuit had anticipated the result decades earlier. In Sears v. United States, the government’s own case in chief injected substantial evidence of entrapment, and the court held the defendant could both move for acquittal on entrapment grounds and have the jury instructed — conditionally — that if it found he committed the acts, it must go on to decide whether he was entrapped into committing them.

Inconsistency, in other words, is permitted but not free. Mathews itself observed that running denial and entrapment together is a high-risk strategy, because jurors may hear the pairing as an admission wrapped in an excuse. The combination works best where, as in Sears, the entrapment evidence comes from the government’s witnesses, so the defense can put the prosecution to its proof while arguing that the prosecution’s own story shows inducement. It works worst where the defendant must take the stand to supply the inducement account himself, because Masciale lets the jury simply disbelieve him.

The Rule 29 Motion: How a Court Actually Ends an Entrapment Case

When lawyers speak of a case being “dismissed” for entrapment, the honest procedural translation is a judgment of acquittal under Rule 29. After the government closes its evidence, or after the close of all the evidence, 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.

Framed for entrapment, the Rule 29 argument is a sufficiency argument: once the defense was fairly raised, no rational jury could find beyond a reasonable doubt that the defendant was predisposed, because the inducement evidence stands undisputed in the government’s own case. That is Sherman translated into modern procedure — and it is why the motion should be made at the close of the government’s case, renewed at the close of all evidence, and renewed again after the verdict.

Rule 29 has forgiving mechanics. A defendant may move, or renew the motion, within fourteen days after a guilty verdict or the jury’s discharge, whichever is later; an earlier motion is not a prerequisite for the post-discharge motion; the court may even raise insufficiency on its own; and if it reserves decision mid-trial, it must rule on the evidence as it stood when it reserved. A granted judgment of acquittal — unlike a mistrial or an order for a new trial — ends the prosecution on that count.

Where This Fits

This guide is one of four situations that arise under the Motion to Dismiss for Outrageous Government Conduct / Entrapment. 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.

• Sorrells v. United States, 287 U.S. 435 (1932) — Recognized the federal entrapment defense; sufficient evidence of government inducement of an unpredisposed defendant requires submitting the issue to the jury.
• Sherman v. United States, 356 U.S. 369 (1958) — Entrapment was established as a matter of law where the prosecution's own undisputed testimony showed agents induced an unwilling person to commit the offense.
• Masciale v. United States, 356 U.S. 386 (1958) — Where the defendant's uncorroborated testimony was the only evidence of inducement, the jury could disbelieve it, so entrapment remained a jury question.
• Sears v. United States, 343 F.2d 139 (5th Cir. 1965) — A defendant may deny the charged acts yet raise entrapment where the government's own case-in-chief injects substantial evidence of entrapment.
• Mathews v. United States, 485 U.S. 58 (1988) — Even a defendant who denies elements of the offense is entitled to an entrapment instruction whenever sufficient evidence would let a reasonable jury find entrapment.
• United States v. Theagene, 565 F.3d 911 (5th Cir. 2009) — Refusal of an entrapment instruction is reviewed de novo, construing the evidence and inferences in the light most favorable to the defendant.

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