907 F.3d 1309
10th Cir.2018Background
- Defendants Guzman-Dominguez (driver) and Rodriguez-Flores (passenger) were arrested at an I-10 port of entry after inspectors found four cardboard boxes (≈47.9 kg cocaine; ≈5.24 kg heroin) concealed behind legitimate cargo (17 large totes of industrial cleaner) in their tractor-trailer.
- Bill of lading signed by Rodriguez-Flores accounted for the legitimate totes; the four drug-containing boxes were not listed and were not present when the legitimate cargo was loaded at Mirachem in Phoenix.
- Mirachem and Crystal Clean employees testified it would have been difficult or noticed for anyone to add small boxes during loading/unloading; Mirachem gave a commercial seal that was not affixed to the trailer doors, but a padlock was later on the doors.
- Defendants traveled together, lived and worked closely as partners, and had control of the truck from pickup until arrest; cell-phone and GPS data showed an unexplained multi-hour delay in Phoenix after loading, creating opportunity to add the contraband.
- Both denied knowledge post-arrest and offered to perform a controlled delivery; DEA expert testified that denials by couriers of large valuable loads are typically false and unwitting couriers are uncommon for such high-value shipments.
- Jury convicted both of conspiracy (21 U.S.C. § 846) and two counts of possession with intent to distribute (21 U.S.C. §§ 841(a)(1), (b)(1)(A)); on appeal Rodriguez-Flores challenged sufficiency of evidence on knowledge and both defendants challenged expert credibility testimony (plain-error review).
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Sufficiency of evidence that Rodriguez-Flores knew about the drugs | Government: collective circumstantial evidence (opportunity, control of truck, close association with driver, false statements, unexplained Phoenix delay, padlock/no seal, expert on trafficking practices) permits inference beyond reasonable doubt of knowledge | Rodriguez-Flores: passenger, claimed ignorance; argued evidence did not prove he knew when contraband was placed or show his participation | Affirmed: viewing evidence in light most favorable to verdict, a rational juror could infer knowledge beyond reasonable doubt—other explanations implausible and his false statements/circumstances corroborate guilt |
| Expert testimony stating couriers who deny knowledge are lying (credibility opinion) | Government: expert context and experience with unwitting vs. knowing couriers made the opinion probative and explained why controlled delivery was inappropriate | Defendants: testimony impermissibly opined on credibility; no contemporaneous objection at trial; seeks reversal on plain-error review | Court: admission was clear error under Rule 702 and controlling precedent (expert opinion on veracity improper), but defendants failed to show prejudice on plain-error review because similar credibility assessments and strong independent evidence rendered the error harmless |
Key Cases Cited
- United States v. Smith, 641 F.3d 1200 (10th Cir.) (standard for de novo sufficiency review)
- United States v. Brooks, 438 F.3d 1231 (10th Cir.) (deference to jury on credibility; evaluate collective inferences)
- United States v. Pulido-Jacobo, 377 F.3d 1124 (10th Cir.) (inferences from high-value contraband support knowledge/possession conclusions)
- United States v. Hill, 749 F.3d 1250 (10th Cir.) (expert testimony on witness veracity improper)
- United States v. Rahseparian, 231 F.3d 1257 (10th Cir.) (false exculpatory statements as circumstantial evidence; contextual limits)
- United States v. Samaria, 239 F.3d 228 (2d Cir.) (distinguishing passenger constructive possession/knowledge cases)
- United States v. Uscanga-Mora, 562 F.3d 1289 (10th Cir.) (plain-error test for prejudice: reasonable probability result would differ)
- United States v. Schene, 543 F.3d 627 (10th Cir.) (other admissible testimony can cure or mitigate harm from improper evidence)