Plain-Error Limits: Unpreserved Confrontation and Sufficiency Claims Fail Absent a “Clear Legal Norm”

1. Introduction

United States v. Bolaji Bolarinwa (3d Cir. Sept. 18, 2026) concerns convictions arising from a domestic-labor trafficking scheme in which Bolaji Bolarinwa, a U.S. citizen, recruited two Nigerian women—Bunmi and Titi—to come to the United States, confiscated their passports, compelled household labor, and used threats, surveillance, and physical abuse to maintain control.

A jury convicted Bolarinwa of two counts of forced labor (18 U.S.C. § 1589(a)), two counts of document servitude (18 U.S.C. § 1592), and one count of harboring an alien for financial gain as to Titi (8 U.S.C. § 1324(a)(1)(A)(iii)), while acquitting on harboring as to Bunmi. On appeal, Bolarinwa raised (1) a Confrontation Clause claim about limits on cross-examination, and (2) several sufficiency challenges.

The central appellate dynamic was preservation: because Bolarinwa failed to raise “adequate contemporaneous objections” and did not “squarely” present her theories in the District Court, the Third Circuit applied plain-error review and affirmed.

2. Summary of the Opinion

The Third Circuit affirmed all convictions. It held that:

  • The trial court’s restriction on cross-examining Titi about an uncharged shoplifting incident did not amount to plain error because the jury already heard extensive bias-related evidence (including immigration benefits tied to cooperation), and the excluded topic was unlikely to change the jury’s view of credibility under the governing standard.
  • Bolarinwa’s sufficiency challenges to forced labor scienter and to document servitude failed under plain-error review because she did not preserve these specific theories in her Rule 29 motion and, on the record, there was ample evidence of coercive means and intent.
  • Her harboring challenge failed at the “plainness” prong because the facts were “unique” and could not be measured against an “absolutely clear legal norm,” so any asserted error was not “clear” or “obvious” under current law.

3. Analysis

A. Precedents Cited

1) Standards of review, preservation, and plain error

  • United States v. Rivera, 74 F.4th 134, 137 (3d Cir. 2023): The court invoked Rivera for the foundational sufficiency posture—viewing the record “in the light most favorable to the Government.” This framing mattered because it compelled the panel to credit trial evidence of coercion, threats, surveillance, and physical abuse.
  • United States v. Girard, 177 F.4th 251, 256 (3d Cir. 2026): Girard supplied the opinion’s operative plain-error template and the admonition that failure to raise “adequate contemporaneous objections” triggers plain-error review. Girard also provided the four-part lens (error, plainness, effect on substantial rights, and effect on fairness/integrity).
  • United States v. Moreno, 809 F.3d 766, 773 n.3 (3d Cir. 2016): Moreno was cited for the proposition that unpreserved Confrontation Clause challenges are reviewed for plain error—critical to the outcome because Bolarinwa did not “squarely” present a constitutional theory below.
  • United States v. Abrams, 165 F.4th 784, 792 (3d Cir. 2026): Abrams drove the court’s preservation holding on sufficiency: a “bare, non-specific Rule 29 motion does not preserve every later-articulated sufficiency argument.” The panel used Abrams to reject Bolarinwa’s attempt to pivot on appeal to a specific scienter theory she had not raised in her Rule 29 briefing.
  • United States v. Olano, 507 U.S. 725, 734 (1993): Olano anchored the definition of “plain” as “clear” or “obvious” and supplied the second-prong hurdle that ultimately disposed of the harboring claim.
  • United States v. Stinson, 734 F.3d 180, 184 (3d Cir. 2013): Stinson prevented an overly rigid view that “lack of precedent alone” defeats plain error, while still leaving room for the panel’s conclusion that novelty, here, made “plainness” unattainable.
  • United States v. Jabateh, 974 F.3d 281, 299 (3d Cir. 2020): Jabateh supplied the limiting principle that even novel questions must be measurable against an “absolutely clear legal norm.” The panel used this to explain why the harboring challenge could not meet Olano’s “plain” requirement given the fact-specific and atypical evidence.

2) Confrontation Clause and bias impeachment

  • United States v. Noel, 905 F.3d 258, 268 (3d Cir. 2018): Noel supplied the key materiality lens for bias cross-examination: whether the jury would have formed a “significantly different impression” of the witness’s credibility if the excluded inquiry had been permitted. The panel applied Noel to hold that extensive evidence of immigration-related benefits and cooperation conditions already gave the jury enough to evaluate bias, making additional shoplifting-based bias marginal.

3) Harboring standard

  • United States v. Ozcelik, 527 F.3d 88, 100 (3d Cir. 2008): Ozcelik provided the doctrinal core of a harboring conviction under § 1324: “conduct tending to substantially facilitate an alien’s remaining in the United States illegally and to prevent government authorities from detecting the alien’s unlawful presence.” The panel did not resolve the outer boundaries of Ozcelik on these facts; instead, it used the novelty/uniqueness of the record to conclude that any alleged error could not be “plain.”

4) Substantial-rights consideration

  • United States v. Williams, 974 F.3d 320, 341 (3d Cir. 2020): In a footnote, the panel cited Williams when explaining that even if there were error, it did not affect substantial rights because cross-examination already covered broad bias topics and the Government presented significant corroborating evidence.

B. Legal Reasoning

1) Confrontation Clause: bias cross-examination and incremental value

The defense theory for the excluded shoplifting inquiry was classic bias impeachment: Titi might curry favor with federal prosecutors in hopes that state shoplifting consequences would be avoided and that her immigration position (including renewal of a T visa) would be protected.

The Third Circuit’s reasoning turned on two linked conclusions:

  1. Procedural: The constitutional Confrontation Clause claim was not properly presented below, so plain-error review applied.
  2. Substantive/material: Under United States v. Noel, the excluded inquiry was unlikely to change the jury’s credibility assessment because the defense already introduced substantial evidence of Titi’s incentive to align with the Government—specifically: (a) Continued Presence (CP) status tied to cooperation, (b) FBI certification supporting a T visa, and (c) questioning about other benefits. The panel emphasized that the jury had enough to make a “discriminating appraisal” of bias without the shoplifting incident.

2) Forced labor (§ 1589(a)): scienter inferred from coercive means and context

The panel treated the forced-labor scienter argument as unpreserved under United States v. Abrams, then assessed the record and found sufficient evidence that Bolarinwa knowingly obtained labor by prohibited means (force, threats, and coercion).

The court pointed to a pattern: visa arrangements placing the victims in vulnerable status; confiscation of passports; long hours; surveillance; severe verbal abuse; threats to kill Bunmi and her daughter; and beatings of Titi with objects. From these facts, the jury could infer the intent to make refusal feel unsafe and thus compel labor.

3) Document servitude (§ 1592): forced labor as the foundation on this record

Bolarinwa argued § 1592 required a “predicate offense” and that her forced-labor conviction was deficient. Because the panel upheld forced labor, it rejected this document-servitude challenge as well—again noting the argument was unpreserved and, in any event, failed on the merits given the sustained forced-labor finding.

4) Harboring (§ 1324): “plainness” fails where facts are unique and law is not obvious

Applying Ozcelik’s harboring formulation, the panel recounted evidence that could be viewed as concealment/facilitation: confiscation of Bunmi’s passport, camera surveillance, social isolation/discomfort in public, wage withholding to prevent flight, and threats when Bunmi tried to leave.

Critically, however, the court did not decide the precise doctrinal reach of “harboring” on these facts. Instead, it resolved the issue through plain-error doctrine: under Olano, Stinson, and Jabateh, an error cannot be “plain” unless it is clear under current law or measurable against an absolutely clear legal norm. Because both sides relied on “quite different facts” from other cases and this record was “unique,” any alleged legal mistake was not obvious—so the claim failed at Olano’s second prong.

C. Impact

Although designated “NOT PRECEDENTIAL,” the opinion has practical (persuasive) implications in three recurring areas:

  • Preservation discipline in criminal appeals: The decision underscores that defendants must (1) raise constitutional theories explicitly and (2) articulate specific sufficiency grounds in Rule 29 motions, or risk the steep climb of plain-error review (reinforcing Girard and Abrams).
  • Bias impeachment limits: Trial courts retain discretion to exclude marginal impeachment where the jury already has substantial bias evidence, and appellate courts may deem additional bias lines immaterial under Noel—especially where alternative incentives (immigration benefits tied to cooperation) are already before the jury.
  • Harboring doctrine and “plainness”: The opinion demonstrates how harboring challenges may be decided without resolving the statute’s outer boundary: if the fact pattern is atypical and precedent does not clearly map onto it, plain-error relief may be unavailable even where the defendant presses a potentially debatable legal interpretation.

4. Complex Concepts Simplified

  • Plain-error review: A deferential appellate standard used when an issue was not properly raised in the trial court. The defendant must show a clear/obvious error that likely mattered and undermined the fairness of the proceedings.
  • Confrontation Clause (bias cross-examination): The Sixth Amendment generally allows a defendant to question witnesses, including about motives to lie. Courts may limit questioning if the jury already has enough information to evaluate bias and the excluded topic would not significantly change the credibility picture.
  • Rule 29 motion: A request for acquittal based on insufficient evidence. If the motion is too general, later, more specific insufficiency theories may be treated as unpreserved on appeal (per United States v. Abrams).
  • Forced labor (18 U.S.C. § 1589(a)): Prohibits obtaining labor through force, threats, serious harm, abuse of legal process, or similar coercive means. Intent can be inferred from a pattern of control (passport seizure, threats, violence, isolation).
  • Document servitude (18 U.S.C. § 1592): Criminalizes confiscating or controlling identity/immigration documents in furtherance of trafficking or forced-labor-related objectives. In practice, passport seizure is often key evidence.
  • Harboring (8 U.S.C. § 1324(a)(1)(A)(iii)): Requires conduct that substantially helps a person remain unlawfully in the U.S. and helps prevent authorities from detecting that unlawful presence (per United States v. Ozcelik).
  • Continued Presence (CP) and T visas: Immigration mechanisms used for trafficking victims/witnesses. CP is temporary authorization to remain during investigation; a T visa can provide longer-term lawful status. These benefits can be explored as potential sources of bias.

5. Conclusion

The Third Circuit’s affirmance rests less on novel substantive doctrine than on two powerful appellate principles: issue preservation and the demanding nature of plain-error review. Applying Noel, it held that excluding cross-examination about an uncharged shoplifting incident did not materially change the jury’s ability to assess bias given extensive immigration-benefit evidence already admitted. Applying Abrams, it treated key sufficiency theories as unpreserved, and in any event found ample evidence of coercive forced labor and passport confiscation. Finally, invoking Olano, Stinson, and Jabateh, it emphasized that where a harboring theory turns on a highly fact-specific and “unique” record, any asserted legal error may not be “plain” absent a clearly governing norm.