United States v. Deschambault: Particularity in Drug-Trafficking Cell-Phone Warrants Permits Review of Images/Videos; Lawfully Discovered Evidence May Seed a Separate Child-Exploitation Investigation

I. Introduction

In United States v. Deschambault (1st Cir. May 18, 2026), the First Circuit affirmed two convictions under 18 U.S.C. § 2251(a) (sexual exploitation of a minor for the purpose of producing a visual depiction) after sexually explicit videos of a minor were found during a warranted search of an iPhone initially authorized for evidence of drug trafficking.

The case arose from controlled cocaine-base purchases and a subsequent sting leading to Deschambault’s arrest. A state warrant authorized a search of an iPhone for records/data related to aggravated drug trafficking and to demonstrate ownership/possession/use of the device. While executing that warrant, officers encountered three videos—two depicting sex acts with a minor and a third placing the minor and Deschambault’s girlfriend in a bedroom Deschambault described as a “dirty ass trap house room.” Officers then sought identification of the minor and later obtained a federal warrant (unchallenged on appeal) to search for child sexual exploitation evidence.

On appeal, Deschambault pressed five principal claims: (1) the state iPhone warrant lacked probable cause/particularity and was exceeded in execution; (2) voir dire inadequately probed racial bias (specifically, bias against interracial relationships); (3) the trial court wrongly excluded mistake-of-age evidence; (4) the § 2251(a) “purpose” instructions were erroneous; and (5) the evidence was insufficient to prove the statutory “purpose” element. The First Circuit rejected each.

II. Summary of the Opinion

  • Warrant validity: The state warrant was supported by probable cause (including a strong nexus between the iPhone and drug trafficking) and was sufficiently particular even though it permitted review across multiple data types, including photos/videos.
  • Warrant execution: Officers did not exceed the warrant by viewing the videos or by taking steps to identify the “youthful” appearing person depicted, because the videos were relevant to the authorized drug investigation and lawfully encountered evidence may be used to investigate additional crimes; officers then appropriately sought a separate federal warrant for the child-exploitation search.
  • Voir dire: The district court did not abuse its discretion by declining to ask Deschambault’s proposed interracial-relationship question, where it asked other race-bias questions that “captured the essence” of the concern and the “relationship” involved an adult/minor.
  • Mistake of age: Mistake-of-age evidence was properly excluded because § 2251(a) does not require knowledge of the victim’s age, per circuit precedent.
  • Jury instructions / waiver: Any challenge to the “significant purpose” instruction was waived (and otherwise not preserved), and the court’s supplemental instruction that intent could be formed during the sex act was not reversible (and not plain error).
  • Sufficiency: The record supported a rational inference that producing the videos was at least a “significant” purpose of the sex acts.

III. Analysis

A. Precedents Cited

1. Digital privacy backdrop and the Fourth Amendment’s adaptation

The court situated the dispute within the Supreme Court’s modern technology-search canon: Carpenter v. United States, Riley v. California, and Kyllo v. United States. While these cases highlight the heightened privacy stakes of digital data, the First Circuit emphasized a key limit: Riley v. California addressed warrantless searches incident to arrest, not the permissible breadth of a search conducted pursuant to a warrant.

2. Probable cause and the nexus requirement

On probable cause, the court relied on Illinois v. Gates for the “totality of the circumstances” approach and the prohibition against “bare conclusions.” It framed the required showing using First Circuit formulations: United States v. Mendoza-Maisonet (commission + nexus), United States v. Ribeiro (as quoted), and the “fair probability” standard articulated in United States v. Lindsey (quoting United States v. Dixon), with nexus inference principles from United States v. Rodrigue.

The opinion also underscored deference to issuing judges, especially in “doubtful or marginal” cases, citing United States v. Cortez (quoting United States v. Barnard) and referencing United States v. Coleman.

3. Particularity in the digital setting

For particularity, the court grounded the analysis in United States v. Ross (scope defined by object and places where evidence may be found), then used its own two-part framework: United States v. Corleto (and earlier United States v. Upham)—(1) guidance to executing officers and (2) not “too broad” as to what may be seized—supplemented by the “read in context” principle of United States v. Kuc.

The defendant’s principal authority, Burns v. United States, was treated as nonbinding and distinguishable. The court noted that Burns v. United States derived a restrictive approach from Riley v. California, but that Riley did not address warranted searches. The panel also leaned on the D.C. federal district court’s rejection of Burns-style limits in United States v. Smith.

Finally, the court cited its own drug-case examples showing that photos/videos can be probative of trafficking: United States v. Mello, United States v. Amado, United States v. Galíndez, and (by analogy) United States v. Munera-Gomez.

4. Execution, “scope,” and discovery of evidence of other crimes

The governing scope inquiry drew from United States v. Wright, United States v. Peake, and United States v. Sheehan (quoting United States v. Pimentel), with “common sense” reading again tied to United States v. Pimentel and United States v. Peake.

Critically, the court invoked United States v. Perez Soto for the principle that motive for a search (hoping to find other evidence) does not matter if officers searched only where permitted. It also cited persuasive authority approving continued lawful search activity despite encountering evidence of different crimes: United States v. Hasbajrami, United States v. Loera, United States v. Stabile, United States v. Mann, and United States v. Vento.

The defendant’s principal contrary precedent, United States v. Carey, was distinguished as fact-bound (and limited by United States v. Burgess), because in Carey the officer abandoned the warrant’s drug-evidence search to hunt child pornography. Here, the videos were found in a search relevant to drug trafficking and, importantly, the videos also bore directly on ownership/use of the phone and linkage to a drug “trap house” bedroom.

5. Voir dire and racial bias

The panel’s voir dire discussion synthesized Supreme Court and First Circuit jury-selection doctrine emphasizing trial-court discretion: United States v. Tsarnaev (quoting Skilling v. United States), and the constitutional role of voir dire from Rosales-Lopez v. United States. It acknowledged the constitutional “at times demands” language of Peña-Rodriguez v. Colorado, while applying First Circuit limits on when special race questioning is required: United States v. Brown, United States v. Parker, and United States v. Gelin.

The opinion anchored the “inextricably bound up” test through the discussion (in footnotes and quotations) of Ham v. South Carolina, Turner v. Murray, and Ristaino v. Ross, and highlighted flexibility in how race bias may be “covered” via United States v. Casanova and Mu'Min v. Virginia. It further relied on its own decisions endorsing substance-over-form in voir dire phrasing: United States v. Sherman (quoting Real v. Hogan), and also cited United States v. Cezaire, United States v. Delgado-Marrero, and the later instruction-related discussion in United States v. Giang (quoting United States v. Díaz-Arias and Correia v. Fitzgerald).

6. Mistake of age under 18 U.S.C. § 2251(a)

The court treated the question as settled circuit law by United States v. Henry, bolstered by the Supreme Court’s observation in United States v. X-Citement Video, Inc. that producers may be convicted under § 2251(a) without proof of knowledge of age. It also reinforced the textual inference principle by citing County of San Francisco v. EPA (quoting Russello v. United States), contrasting Congress’s omission of an age-knowledge element in § 2251(a) with its inclusion elsewhere (e.g., 18 U.S.C. § 2252(a)).

The panel addressed the defendant’s reliance on Sixth Circuit “specific intent” descriptions in United States v. Frei and United States v. Ramamoorthy, clarifying that § 2251(a)’s specific intent is to produce a depiction—not to violate the law or to know the victim’s age. It also rebuffed an attempted reading of Ortiz-Graulau v. United States as imposing a knowledge-of-age requirement.

In a footnote, the court noted broad circuit alignment rejecting a mistake-of-age defense post-X-Citement Video, Inc., citing United States v. Fletcher, United States v. Pliego, United States v. Malloy, United States v. Griffith, and United States v. Deverso, and contrasted the pre-X-Citement Video, Inc. Ninth Circuit approach in United States v. U.S. Dist. Ct..

7. Jury-instruction preservation, waiver, and plain error

The court’s waiver analysis was driven by United States v. Hansen (explicit approval waives instructional claims), and later First Circuit applications: United States v. Pittmann (quoting United States v. Simon), United States v. Acevedo, United States v. Corbett, and United States v. Martínez-Mercado.

For preservation under Fed. R. Crim. P. 30(d), the court emphasized that pre-charge discussion is insufficient, citing United States v. McPhail (quoting United States v. Roberson), and it referenced out-of-circuit authority on specificity: United States v. Peterson (quoting United States v. Elias).

For plain-error framing, it cited United States v. Andino-Rodríguez (quoting United States v. Cruz-Ramos) and used United States v. Martínez-Mercado to hold that failing to argue plain error in the opening brief waives the forfeited claim. The “timing of intent” issue also referenced Reyes-Colón v. United States regarding arguments not raised below.

8. Sufficiency of evidence for § 2251(a)’s “purpose” element

The sufficiency standard came from United States v. Freeman (quoting United States v. Azubike), with additional framing from United States v. Pérez-Greaux (quoting United States v. Cortés-Cabán), and the prohibition on appellate credibility weighing from United States v. Díaz-Colón (quoting United States v. Serunjogi). The panel emphasized that the question is whether the verdict is supported by a “plausible rendition of the record,” citing United States v. Díaz-Colón (quoting United States v. Soler-Montalvo).

On what evidence may show “purpose,” the court cited its own § 2251(a) precedent United States v. Morales-de Jesús and pose/depiction reasoning from United States v. Ortiz-Graulau, with additional support from United States v. Fortier, United States v. Lebowitz, and United States v. Lee. It distinguished the defendant’s principal insufficiency authority, United States v. Palomino-Coronado, and later referred to United States v. Palomino-Cordero as the only insufficiency example he cited.

B. Legal Reasoning

1. The warrant’s probable cause and nexus to the iPhone

The court treated the iPhone as a suspected instrumentality of drug trafficking based on concrete facts in the affidavit: a confidential informant used a specific number to arrange a buy; officers called that number and the seized iPhone rang and displayed caller ID; and the iPhone was located under the passenger seat alongside a loaded handgun, scale with cocaine residue, and packaging materials. This supplied a “fair probability” that evidence of drug trafficking (and device ownership/use) would be found on the phone.

2. Particularity: why photos/videos were within a properly limited search

Although the warrant listed many data categories (including “graphic visual images”), the First Circuit focused on the limiting clauses: the search was restricted to data (i) pertaining to use of the iPhone to engage in aggravated drug trafficking and (ii) demonstrating ownership/possession/use. The panel rejected a categorical rule that drug-related phone warrants must be confined to texts/calls. Given common drug-trafficking proof patterns (including photos/videos), and the practical inability to predict where relevant evidence sits within modern phone storage, the court held the warrant “sufficiently particular” under its two-demand test.

3. Execution: discovering child exploitation did not expand the warrant beyond its terms

The videos were not “off-topic” detours: they showed the same bedroom where drugs and cash were found and included statements tying the room to drug distribution (“trap house room”). That made the videos relevant to the authorized objectives—linking Deschambault to the device and the drug locus. The panel further rejected the argument that officers acted unlawfully by beginning to identify the minor and involving the FBI. The opinion treated it as permissible to follow leads and share lawfully found evidence, especially where officers did not abandon the authorized search and later obtained a separate federal warrant for the child-exploitation investigation.

4. Voir dire: broad discretion and “coverage” rather than defendant-drafted phrasing

The First Circuit applied a deferential abuse-of-discretion review and held the trial court adequately covered racial bias by asking three questions probing attitudes toward Black individuals and race-based criminality stereotypes. It refused to constitutionalize a requirement to ask about “mixed marriages or relationships,” especially where the alleged “relationship” was adult/minor and thus not meaningfully analogous to consensual adult interracial relationships. The reasoning is pragmatic: the law requires rooting out partiality, not adopting defendant-selected framing.

5. Mistake of age and mens rea under § 2251(a)

The panel reaffirmed that § 2251(a) does not require proof that the defendant knew the victim’s age and therefore does not permit a mistake-of-age defense. It rejected the attempt to transform “specific intent” into a requirement that the defendant intended to violate the law, clarifying that the statute’s purpose requirement targets the goal of producing a visual depiction of sexually explicit conduct, not the defendant’s legal awareness.

6. Jury instructions: waiver/forfeiture and the timing of intent

The court treated counsel’s “Perfect. Thank you very much.” response to the “significant purpose” instruction as an explicit withdrawal of objection under circuit waiver doctrine. Separately, the court held the issue was not preserved under Rule 30(d) and that Deschambault failed to carry (or even argue) plain error. On the jury note about timing, the panel found the argument unpreserved and concluded it was not plain error to instruct that intent may be formed during the act, particularly where the jury had been told the purpose must be “significant.”

7. Sufficiency: “director-like” conduct and repeated recordings supported “purpose”

Applying the strict pro-verdict sufficiency standard, the court held the jury could infer a significant purpose to film from: (i) Deschambault’s directives to the minor (which could be viewed as camera-oriented staging), (ii) camera movement and focus on body parts and penetration, and (iii) the existence of two separate videos roughly eight hours apart—suggesting filming was not purely incidental.

C. Impact

1. Practical rule for cell-phone warrants in drug investigations

The opinion strengthens (within the First Circuit) the proposition that a drug-trafficking phone warrant may permissibly encompass broad categories of phone data—including photos and videos—so long as the warrant is tethered by subject-matter limitations (drug trafficking and/or device ownership/use) and supported by an affidavit explaining why such categories may contain relevant evidence. It resists importing a rigid, file-type-by-file-type constraint as a constitutional baseline.

2. Investigative continuity when other crimes are discovered

The decision also reassures investigators that, when evidence of a different crime is encountered during a lawful search and the search remains within the warrant’s scope, officers may take reasonable steps to identify subjects depicted and coordinate with appropriate agencies, especially when they then obtain a new warrant for expanded forensic searching.

3. Trial-management deference: voir dire and instructions

The case reinforces the breadth of trial-court discretion in voir dire phrasing and underscores the appellate consequences of affirmatively accepting instructions (waiver) and failing to preserve objections under Rule 30(d). For practitioners, the decision is a cautionary template: “content” approval on the record may be dispositive on appeal.

4. Substantive child-exploitation doctrine

The panel’s reaffirmation of United States v. Henry keeps the First Circuit aligned with the dominant national view: § 2251(a) is a production statute that does not require proof of knowledge of age and does not admit a mistake-of-age defense. The case thus narrows the relevance of age-belief evidence and channels defenses toward disputing “purpose” (and identification/production) rather than mistake.

IV. Complex Concepts Simplified

  • Probable cause: A practical, common-sense probability—based on sworn facts—that evidence of a crime will be found in the place to be searched.
  • Nexus: The connection between the suspected crime and the location (here, the iPhone). It need not be certainty; a “fair probability” suffices.
  • Particularity (not a “general warrant”): The warrant must constrain officer discretion by describing what they may search for and seize. In digital searches, breadth can be permissible if the warrant is limited by subject matter and justified by the investigation’s needs.
  • Scope of execution: Officers must search only in places (or data areas) where authorized evidence could reasonably be found; finding evidence of a different crime does not automatically invalidate the search.
  • Voir dire: Jury questioning to detect bias. Judges have wide discretion in wording so long as the questioning adequately probes impartiality.
  • Mens rea / actus reus: “Mens rea” is the required mental state; “actus reus” is the prohibited act. Section 2251(a) requires purpose to produce a depiction, but not knowledge of the victim’s age.
  • Waiver vs. forfeiture: Waiver is an intentional relinquishment (often fatal on appeal). Forfeiture is a failure to timely object, which typically limits review to “plain error.”
  • Plain error: A high bar on appeal requiring a clear/obvious mistake that affected substantial rights and seriously impaired fairness or integrity.
  • Sufficiency of the evidence: On appeal, the question is not whether judges think the defendant is guilty, but whether any rational jury could find guilt beyond a reasonable doubt viewing evidence in the prosecution’s favor.

V. Conclusion

United States v. Deschambault is a consequential First Circuit decision at the intersection of digital-search doctrine and child-exploitation prosecutions. It holds that a drug-trafficking iPhone warrant can be sufficiently particular even when it authorizes review of broad data types (including images and videos) where the warrant is tethered to drug-trafficking and ownership/use objectives and supported by a tailored affidavit. It further confirms that officers who lawfully encounter evidence of a different crime may take reasonable investigative steps—without “exceeding scope”—so long as they remain within the warrant’s authorized search and later obtain a separate warrant for the new crime’s deeper forensic search.

On the trial side, the opinion reinforces deference to district courts in voir dire phrasing, the continued exclusion of mistake-of-age evidence under § 2251(a), and the decisive appellate effect of waiver and Rule 30(d) noncompliance. Substantively, it reaffirms that § 2251(a) targets purposeful production of visual depictions of sexually explicit conduct involving minors—without requiring proof that the producer knew the victim’s age.