Check how courts have cited this case. Use our free citator for the most current treatment.
No. 10373695
United States Court of Appeals for the Ninth Circuit
United States v. McKenzie
No. 10373695 · Decided April 7, 2025
No. 10373695·Ninth Circuit · 2025·
FlawFinder last updated this page Apr. 2, 2026
Case Details
Court
United States Court of Appeals for the Ninth Circuit
Decided
April 7, 2025
Citation
No. 10373695
Disposition
See opinion text.
Full Opinion
NOT FOR PUBLICATION FILED
UNITED STATES COURT OF APPEALS APR 7 2025
MOLLY C. DWYER, CLERK
U.S. COURT OF APPEALS
FOR THE NINTH CIRCUIT
UNITED STATES OF AMERICA, No. 24-910
D.C. No.
Plaintiff - Appellee, 4:23-cr-00941-SHR-LCK-1
v.
MEMORANDUM*
ZACKERY ALLEN MCKENZIE,
Defendant - Appellant.
Appeal from the United States District Court
for the District of Arizona
Scott H. Rash, District Judge, Presiding
Submitted April 2, 2025**
Phoenix, Arizona
Before: HAWKINS, W. FLETCHER, and R. NELSON, Circuit Judges.
Appellant Zackery McKenzie (“McKenzie”) appeals his bench trial
conviction for one count of Conspiracy to Transport Illegal Aliens for Profit and
three counts of Transportation of Illegal Aliens for Profit in violation of 8 U.S.C.
*
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).
§ 1324(a)(1), challenging the denial of his motion to suppress evidence obtained
from a traffic stop in a national wildlife refuge north of the Arizona–Mexico border.
We affirm.
We review de novo the denial of a motion to suppress and the determination
of underlying factual findings for clear error. United States v. Lara, 815 F.3d 605,
608–09 (9th Cir. 2016) (citing United States v. Mayer, 560 F.3d 948, 956 (9th
Cir. 2009)). We also review de novo a district court’s interpretation of a federal
regulation. See United States v. Obendorf, 894 F.3d 1094, 1098 (9th Cir. 2018).
McKenzie was not exempt from 50 C.F.R. § 27.31 simply because he was
traveling on Arizona State Route 286. State traffic laws “shall govern traffic” in
national wildlife refuges. Id. § 27.31(a). Further, Fish and Wildlife Officers are
authorized to “insure the safety of the using public to the fullest degree possible” in
these refuges. 50 C.F.R. § 28.21. Together, these regulations expressly contemplate
Fish and Wildlife Officers conducting traffic stops on roads within refuges.
McKenzie failed to demonstrate that state-owned highways within a refuge
fall outside of § 27.31(a)’s ambit. To read an unstated exception for state-owned
highways would conflict with the duties of Fish and Wildlife Officers. See Barboza
v. Cal. Ass’n of Pro. Firefighters, 651 F.3d 1073, 1078 (9th Cir. 2011) (“Under our
precedent, we construe regulations so as to give effect and meaning to each of a
regulation’s subsections, if possible.”); 50 C.F.R. § 28.21. Therefore, by traveling
2 24-910
10 miles per hour over the posted speed limit in violation of A.R.S. § 28-702.01,
McKenzie violated 50 C.F.R. § 27.31(a), and Officer Amos acted within his
authority in conducting the stop.
McKenzie’s Tenth Amendment argument also fails as Congress delegated its
authority to the Secretary of the Interior to regulate national wildlife refuges. See
United States v. Millis, 621 F.3d 914, 917 (9th Cir. 2010). Given that Congress
exercised its authority over that federal land, “the Tenth Amendment expressly
disclaims any reservation of that power to the States.” New York v. United States,
505 U.S. 144, 156 (1992).
Officer Amos’s actions were permissible under the Fourth Amendment. See
United States v. Becerra-Garcia, 397 F.3d 1167, 1175 (9th Cir. 2005) (rejecting that
a traffic stop “is automatically unreasonable if the officers lacked authority to
conduct the seizure”). Confirming through his radar system that McKenzie was
traveling 10 miles per hour over the posted speed limit, Officer Amos reasonably
believed this to be a violation of federal regulations. This was sufficient justification
to conduct the traffic stop. See United States v. Choudhry, 461 F.3d 1097, 1100 (9th
Cir. 2006) (“A traffic violation alone is sufficient to establish reasonable
suspicion.”). During the stop, the undocumented immigrants were in plain view as
Officer Amos approached the vehicle.
3 24-910
Observing five people wearing camouflage “piled on top of each other in the
back seat” not previously visible in the vehicle, coupled with Agent Weber’s
previous observations, provided a constitutionally sufficient reason to investigate
further. See United States v. Evans, 786 F.3d 779, 788 (9th Cir. 2015) (“[A]n officer
may prolong a traffic stop if the prolongation itself is supported by independent
reasonable suspicion.”); see also United States v. Diaz-Castaneda, 494 F.3d 1146,
1152–53 (9th Cir. 2007) (allowing police to ask for identification at a traffic stop).
No Fourth Amendment violation occurred here.
AFFIRMED.
4 24-910
Plain English Summary
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS APR 7 2025 MOLLY C.
Key Points
01NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS APR 7 2025 MOLLY C.
02COURT OF APPEALS FOR THE NINTH CIRCUIT UNITED STATES OF AMERICA, No.
03Rash, District Judge, Presiding Submitted April 2, 2025** Phoenix, Arizona Before: HAWKINS, W.
04Appellant Zackery McKenzie (“McKenzie”) appeals his bench trial conviction for one count of Conspiracy to Transport Illegal Aliens for Profit and three counts of Transportation of Illegal Aliens for Profit in violation of 8 U.S.C.
Frequently Asked Questions
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS APR 7 2025 MOLLY C.
FlawCheck shows no negative treatment for United States v. McKenzie in the current circuit citation data.
This case was decided on April 7, 2025.
Use the citation No. 10373695 and verify it against the official reporter before filing.