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No. 10328483
United States Court of Appeals for the Ninth Circuit
United States v. Leon
No. 10328483 · Decided February 6, 2025
No. 10328483·Ninth Circuit · 2025·
FlawFinder last updated this page Apr. 2, 2026
Case Details
Court
United States Court of Appeals for the Ninth Circuit
Decided
February 6, 2025
Citation
No. 10328483
Disposition
See opinion text.
Full Opinion
NOT FOR PUBLICATION FILED
UNITED STATES COURT OF APPEALS FEB 6 2025
MOLLY C. DWYER, CLERK
U.S. COURT OF APPEALS
FOR THE NINTH CIRCUIT
UNITED STATES OF AMERICA, No. 23-1025
D.C. No.
Plaintiff - Appellee, 3:22-cr-02191-JLS-1
v.
MEMORANDUM*
CARLOS BARRAGAN LEON,
Defendant - Appellant.
Appeal from the United States District Court
for the Southern District of California
Janis L. Sammartino, District Judge, Presiding
Submitted February 4, 2025**
Pasadena, California
Before: WARDLAW, CALLAHAN, and HURWITZ, Circuit Judges.
Carlos Barragan Leon appeals his conviction and sentence for two counts of
knowing importation of a Schedule II controlled substance in violation of 21
*
This disposition is not appropriate for publication and is not precedent
except as provided by Ninth Circuit Rule 36-3.
**
The panel unanimously concludes this case is suitable for decision
without oral argument. See Fed. R. App. P. 34(a)(2).
U.S.C. §§ 952 and 960. We have jurisdiction under 28 U.S.C. § 1291 and 18
U.S.C. § 3742. We affirm in part, and reverse and remand in part.
1. Leon contends that the district court erred by admitting the expert
testimony of a Spanish-English translator without making a specific reliability
finding as to the expert’s ability to “unscramble” recovered WhatsApp messages
between Leon and “Ivan,” the owner of the vehicle Leon was driving when he was
stopped at the border. Because Leon did not object below, we review his claim for
plain error and will reverse only if there is “(1) error, (2) that is plain, and (3) that
affects substantial rights.” United States v. Myers, 804 F.3d 1246, 1257 (9th Cir.
2015) (internal quotation marks and citation omitted).
The district court did not plainly err in admitting the expert testimony. “The
inquiry envisioned by Rule 702 is . . . a flexible one,” Daubert v. Merrell Dow
Pharms., Inc., 509 U.S. 579, 594 (1993), and district courts have broad latitude in
determining both how to assess an expert’s reliability and whether an expert’s
testimony is reliable, see United States v. Jimenez-Chaidez, 96 F.4th 1257, 1269
(9th Cir. 2024). Here, in a finding supported by the expert’s recounting of her
extensive qualifications as a translator, including her ability to rearrange the order
of the words in, i.e. “unscramble,” the text messages, the district court reasonably
concluded that it would be “both relevant and reliable for the jury to hear [her
testimony].”
2 23-1025
2. The district court erred, however, by failing to orally pronounce the
standard conditions of supervision at Leon’s sentencing. The parties agree that a
limited remand is appropriate in light of United States v. Montoya, which held that
“a district court must orally pronounce all discretionary conditions of supervised
release in the presence of the defendant.” 82 F.4th 640, 652 (9th Cir. 2023) (en
banc). We agree that a limited remand is warranted, and thus “vacate only the
conditions of [Leon’s] supervised release that were referred to as the ‘standard
conditions’ in the written sentence but were not orally pronounced” at sentencing.
Montoya, 82 F.4th at 656. On remand, the district court should orally
pronounce “any of the standard conditions of supervised release that it chooses to
impose,” so that Leon may object to them if he chooses. Id.
AFFIRMED IN PART, VACATED IN PART, AND REMANDED.
3 23-1025
Plain English Summary
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS FEB 6 2025 MOLLY C.
Key Points
01NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS FEB 6 2025 MOLLY C.
02COURT OF APPEALS FOR THE NINTH CIRCUIT UNITED STATES OF AMERICA, No.
03Sammartino, District Judge, Presiding Submitted February 4, 2025** Pasadena, California Before: WARDLAW, CALLAHAN, and HURWITZ, Circuit Judges.
04Carlos Barragan Leon appeals his conviction and sentence for two counts of knowing importation of a Schedule II controlled substance in violation of 21 * This disposition is not appropriate for publication and is not precedent except as pro
Frequently Asked Questions
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS FEB 6 2025 MOLLY C.
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