United States V Navarro Aguirre
This opinion is subject to revision before publication.
UNITED STATES COURT OF APPEALS
FOR THE ARMED FORCES
_______________
UNITED STATES
Appellee
v.
Leo J. NAVARRO AGUIRRE, Airman First Class
United States Air Force, Appellant
No. 24-0146
Crim. App. No. 40352
Argued February 26, 2025—Decided July 24, 2025
Military Judge: Elijah F. Brown
For Appellant: Major Frederick J. Johnson (argued);
Lieutenant Colonel Allen S. Abrams and Major
Spencer R. Nelson.
For Appellee: Major Vanessa Bairos (argued); Colo-
nel Matthew D. Talcott, Lieutenant Colonel Jenny A.
Liabenow, and Mary Ellen Payne, Esq. (on brief).
Chief Judge OHLSON delivered the opinion of the
Court, in which Judge SPARKS, Judge MAGGS, and
Judge HARDY joined. Judge JOHNSON filed a sep-
arate opinion, concurring in part and dissenting in
part.
_______________
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
Chief Judge OHLSON delivered the opinion of the
Court.
Appellant received from his medical provider a valid
prescription for the sleep medication commonly known as
Ambien. At approximately 6:00 p.m. the next day, he was
seen driving erratically near his apartment complex. Dur-
ing an encounter with the police, Appellant acknowledged
that he had recently taken Ambien, and he also admitted
to “huffing” an aerosol spray at some unspecified time. He
later was charged with, among other offenses, wrongful use
of the controlled substance zolpidem (Ambien’s chemical
name), as well as reckless driving after using both
zolpidem and aerosol inhalants. Appellant subsequently
sought to plead guilty to the reckless driving specification.
During the providence inquiry, Appellant stated that after
he took his prescribed dose of Ambien, he fell asleep in his
bed and the next thing he remembered was waking up be-
hind the wheel of his car. The military judge accepted Ap-
pellant’s plea. 1 Separately, and contrary to his pleas, a
panel of officer and enlisted members found Appellant
guilty of, among other offenses, wrongful use of zolpidem
(hereinafter referred to as Ambien).
We granted review of the following issues:
I. Whether Appellant’s conviction for wrongful
Ambien use is legally sufficient when: (1) he had
a valid prescription for Ambien, and (2) the basis
for his conviction was a medically-known side
effect.
II. Whether Appellant’s guilty plea for reckless
driving was provident when he took his prescribed
dose of Ambien, fell asleep in his bed, and “the
next thing [he] remembered is being behind the
wheel of [his] car.”
United States v. Navarro Aguirre, 85 M.J. 200 (C.A.A.F.
2024) (order granting review) (alterations in original).
1 Appellant’s plea of guilty to the reckless driving specifica-
tion excepted the language concerning aerosol inhalants.
2
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
For the reasons set forth below, we conclude that
Appellant’s conviction for wrongful use of Ambien was not
legally sufficient, but his guilty plea to reckless driving was
provident.
I. Background
Appellant was stationed at Joint Base Lewis-McChord,
Washington. On September 30, 2021, he received a pre-
scription for Ambien from his medical provider. The next
day (a Friday), at approximately 6:00 p.m., a witness ob-
served Appellant driving erratically. When Appellant’s ve-
hicle stopped for an extended period in a turn lane, the wit-
ness got out of his car to check on him. The witness saw
Appellant dressed in his military uniform (although with-
out the blouse), rocking back and forth with a can in his lap
and what appeared to be a smile on his face. Appellant
eventually turned into his apartment complex and bumped
into a lamppost, which caused him to stop for several
minutes before he drove off.
Local police officers soon responded to a report of a sus-
pected case of “driving under the influence.” When they dis-
covered Appellant partially parked in a parking stall, they
asked him if he had been drinking or using drugs. Appel-
lant responded that he had taken Ambien. One officer, who
had seen aerosol cans in the back seat of Appellant’s car,
asked him their purpose. Appellant admitted to “huffing”
them but did not say when he had done so.
A. Appellant’s Guilty Plea
At his general court-martial, Appellant sought to plead
guilty to reckless driving after taking Ambien. During the
providence inquiry conducted in accordance with United
States v. Care, 18 C.M.A. 535, 40 C.M.R. 247 (1969),
Appellant told the military judge that he had been
prescribed Ambien the day before the incident to help him
sleep. He further explained that on the day of the incident,
he left work and arrived at his apartment around 2:30 p.m.
He then took the “prescribed dose of one pill” of Ambien
because he “hadn’t slept in almost two days.” Appellant
stated that he then fell asleep in his bed and the next thing
3
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
he remembered was being in the driver’s seat of his car,
parked in the wrong parking spot, with his foot on the gas
pedal and “revving the engine.” He said that a police car
was behind him and that when he spoke to the officers, he
told them that he was not drunk but that he had taken
Ambien.
In the course of the Care inquiry, Appellant told the mil-
itary judge that he did not remember driving his car but
that he had reviewed the statements of witnesses and the
police. Having done so, he acknowledged that his car had
been seen “recklessly weaving and blocking traffic” and
veering on and off roads, and “that the swerving is what
eventually led [him] to swerve onto the sidewalk and hit [a]
lamppost.” Based on his review of this evidence, Appellant
admitted that he had operated his car in a reckless man-
ner. During follow up questions from the military judge,
Appellant also acknowledged that he had taken Ambien
“after arriving home from work,” and he agreed with the
military judge that the Ambien caused him to not remem-
ber being in control of the vehicle.
The military judge questioned Appellant about his men-
tal state during the time of the offense. Appellant said that
he “was not in complete control of [his] faculties” and
acknowledged that he was driving recklessly because his
actions of swerving on the road, blocking traffic, riding on
top of a sidewalk, and hitting a lamppost were unsafe for
himself and others. He also conceded that the Ambien
could have affected his ability to safely control the vehicle.
He told the military judge that when his “memory came to”
he recalled feeling “dazed, groggy, slow, and having a hard
time understanding the police officers.” Appellant specifi-
cally denied having a justification or excuse for driving his
vehicle in the manner alleged, and he told the military
judge that he was pleading guilty voluntarily and of his
own free will.
The military judge accepted Appellant’s guilty plea to
reckless driving in violation of Article 113, Uniform Code
4
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
of Military Justice (UCMJ), 10 U.S.C. § 913 (2018). 2 How-
ever, the military judge told Appellant that he could seek
to withdraw his plea of guilty at any time before his sen-
tence was announced.
B. The Contested Offenses
With regard to the contested offenses (as well as to the
contested language of “and aerosol inhalants” in the reck-
less driving specification), Appellant elected trial by mem-
bers with enlisted representation. In seeking to prove Ap-
pellant’s wrongful use of Ambien, the prosecution offered
photos of the interior of Appellant’s car. These photos were
taken from outside of the car more than two months after
the charged incident. One of the photos of the front passen-
ger seat showed what appeared to be pharmacy paperwork
that had accompanied Appellant’s Ambien prescription.
Another photo showed a small brown paper bag in the
backseat.
The prosecution also offered the testimony of an expert
witness in the field of forensic toxicology. He testified that
a prescription for Ambien would have instructed the pa-
tient to take the medication “[j]ust before one desires to go
to sleep.” He also testified, among other things, to the fol-
lowing facts: (a) Ambien is a medication that assists a per-
son in getting a full night’s sleep, rather than sleep for a
short period of time; (b) the purpose of Ambien is to put the
user to sleep and to help the user stay asleep; (c) Ambien
can be misused and abused if a user takes a higher dosage
than prescribed or if the medication is taken with other in-
toxicants; and (d) Ambien is a senses suppressant which
can “turn[] off pieces of your body that are quite im-
portant.”
2 Additionally, and consistent with Appellant’s pleas, the
military judge found Appellant guilty of one specification of vio-
lating a lawful order (a no-contact order) in violation of Article
92, UCMJ, 10 U.S.C. § 892 (2018), and one specification of
wrongful use of a controlled substance (oxycodone) in violation
of Article 112a, UCMJ, 10 U.S.C. § 912a (2018).
5
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
Along with other evidence, the defense offered the Food
and Drug Administration (FDA) data sheet for Ambien
which states that “[c]omplex sleep behaviors including . . .
sleep-driving, and engaging in other activities while not
fully awake, may occur following the first or any subse-
quent use of AMBIEN.” The defense also called as a wit-
ness the nurse practitioner who had prescribed Ambien to
Appellant. She testified to the following facts: (a) she pre-
scribed Appellant Ambien on September 30, 2021; (b) she
would instruct patients to take Ambien thirty minutes be-
fore bedtime and about seven to eight hours before they
planned to wake up; (c) Appellant had a medical purpose
and authorization to use the medication on the charged
date; (d) the use of Ambien an hour or two before bedtime
does not invalidate the prescription or make it “illegal”; (e)
users can abuse their prescriptions for Ambien by taking
Ambien “at a time when they are not trying to go to sleep,
but rather trying to have some other effect”; and (f) there
is a “whole list” of different effects that people might expe-
rience after taking Ambien, such as “complex sleep behav-
iors,” but they are not common.
At the close of evidence, the defense moved for a finding
of not guilty pursuant to Rule for Courts-Martial (R.C.M.)
917 (2019 ed.) on the wrongful use of Ambien specification.
Defense counsel argued that the prosecution had failed to
provide any evidence during its case-in-chief that Appel-
lant had wrongfully used Ambien as he had a valid pre-
scription for it. The military judge disagreed. He reasoned
that when the evidence was viewed in the light most favor-
able to the prosecution, Appellant’s wrongful use could be
inferred from the erratic way he had been driving, the time
the offense occurred (i.e., Appellant took the Ambien late
in the afternoon rather than at night), his attire when he
was arrested (i.e., Appellant still was partially dressed in
his military uniform rather than in sleepwear), and his
work schedule (i.e., Appellant was not taking the Ambien
in the afternoon to accommodate “shift work”).
The military judge subsequently provided the panel
members with findings instructions. In doing so, he took
6
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
judicial notice that the incident occurred on a Friday. Con-
trary to Appellant’s pleas, the panel found Appellant guilty
of wrongful use of Ambien in violation of Article 112a,
UCMJ. However, the panel found Appellant not guilty of
the language “and aerosol inhalants” in the reckless driv-
ing specification. 3
After the members returned their findings, the defense
asked the military judge to reconsider his prior R.C.M. 917
ruling. In arguing why reconsideration was warranted, the
defense asked the military judge to consider Appellant’s
statements during his Care inquiry. The military judge de-
clined the defense’s invitation and denied the request for
reconsideration. The military judge emphasized that “there
was evidence Ambien should be taken exactly as pre-
scribed” right before bedtime, and that a user should not
take Ambien if they cannot get a full night’s sleep. The mil-
itary judge concluded that “[the] manner in which [Appel-
lant] was driving, the time of day it was, and what [Appel-
lant] was wearing,” as well as other factors, supported the
inference that Appellant had not taken Ambien for its pre-
scribed purpose.
C. Appellant’s Guilty Plea Revisited
Although the military judge denied the defense’s
request regarding the panel’s findings, he found the
“subject of the motion” raised “some concerns” about the
providence of Appellant’s earlier guilty plea to reckless
driving. Specifically, the military judge observed that
Ambien’s FDA information sheet referenced “sleep driving”
as a known side effect of the medication. He further noted
that military law recognizes “something of a defense of
3 The panel also found Appellant guilty, contrary to his pleas,
of one specification of assault consummated by a battery and one
specification of aggravated assault with a loaded firearm—both
committed against his wife—in violation of Article 128, UCMJ,
10 U.S.C. § 928 (2018). However, the panel found Appellant not
guilty of a specification of failing to obey a lawful general regu-
lation that prohibited using an aerosol inhalant with the intent
to alter mood or function, and two specifications of assault con-
summated by a battery.
7
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
automatism, so if someone has sort of an involuntary
action, [like] a seizure or an involuntary act, then there’s
no reason for the law to criminalize that.” Considering the
foregoing, the military judge reopened the providence
inquiry to explore whether Appellant had been “sleep
driving” at the time of the incident and thus was not aware
that he was operating a vehicle.
At the outset of the renewed providence inquiry, the
military judge explained to Appellant that voluntarily tak-
ing a drug is not a defense to reckless driving. The military
judge then asked Appellant, “Why do you think that your
control of the vehicle was voluntary if you were under the
influence of Ambien and have no memory of the driving?”
Appellant replied with a variety of reasons. First, he said
that even though he had no memory of driving, he obvi-
ously must have taken a number of actions to get into the
car and then to drive it. (“I would have had to put some
kind of shoes on, get my car keys, get in my car, start my
car, turn music on . . . stop[] at stoplights . . . put my car in
gear and pull[] out of the [parking] spot.”) Second, Appel-
lant told the military judge that from listening to witness
testimony he understood that he was driving the car “some-
what normal at some points.” Third, he said that when
“[his] memory kick[ed] back in” it “didn’t feel like waking
up from sleep” but felt more like a blackout from drinking
alcohol. (“Like a slide show and there are just some slides
missing.”) Fourth, Appellant agreed with the military
judge that based on the complexity of his actions, he did
not believe he was “asleep” while driving and that he be-
lieved that his actions were voluntary. Fifth, Appellant ex-
plained that “previously [he] was aware that Ambien was
pretty potent stuff, and I know it . . . could have effects on
your driving, operating machinery, whatnot.” 4 Ultimately,
Appellant agreed with the military judge that “the number
of things [he] would have had to do and . . . their
4 In response to a follow-up question from the military judge,
Appellant explained that he learned this information “from [his]
prescribing [nurse practitioner].”
8
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
complexity” led him to believe that he was not truly
“asleep” at the time that he was driving.
Later, when asked again by the military judge why he
believed he was responsible for his actions, Appellant ex-
plained that on the day of the incident his car was running
low on fuel and he had been thinking about getting gas.
Thus, Appellant said, although he did not remember the
facts, he believed his motivation to get behind the wheel
was to go to the gas station. Appellant also told the military
judge that he believed he was aware of what he had been
doing while driving, despite not remembering those ac-
tions, because he was aware of where he was at the stop-
lights, he was aware of other vehicles honking, and he was
able to drive back home. Appellant stated, “I believe those
are voluntary actions.”
Based on Appellant’s statements, the military judge af-
firmed his acceptance of the guilty plea to this offense.
However, he once again informed Appellant that he could
ask to withdraw his plea of guilty at any time before the
announcement of his sentence. Appellant did not do so.
At the sentencing phase of the trial, the military judge
sentenced Appellant to a bad-conduct discharge, confine-
ment for a total of two years and two months, forfeiture of
all pay and allowances, reduction to the grade of E-1, and
a reprimand. The convening authority took no action on the
findings but suspended the first six months of the adjudged
forfeitures, waived automatic forfeitures for six months,
and directed that the total pay and allowances be paid to
Appellant’s spouse for six months. Subsequently, the mili-
tary judge entered judgment. The United States Air Force
Court of Criminal Appeals affirmed the findings and the
sentence.
II. The Legal Sufficiency of Appellant’s Conviction
for Wrongful Use of Ambien
A. Standard of Review
We review issues of legal sufficiency de novo. United
States v. Harman, 68 M.J. 325, 327 (C.A.A.F. 2010).
9
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
B. Applicable Law
The elements for Article 112a (wrongful use of a con-
trolled substance) are as follows:
(a) That the accused used a controlled substance;
and
(b) That the use by the accused was wrongful.
Manual for Courts-Martial, United States pt. IV, para.
50.b.(2)(a)-(b) (2019 ed.) (MCM). The MCM defines wrong-
ful use as “without legal justification or authorization.” Id.
para. 50.c.(5).
A conviction is legally sufficient when “considering the
evidence in the light most favorable to the prosecution, a
reasonable factfinder could have found all the essential el-
ements beyond a reasonable doubt.” United States v.
Young, 64 M.J. 404, 407 (C.A.A.F. 2007) (internal quota-
tion marks omitted) (citations omitted). Under this stand-
ard, a reviewing court must draw every reasonable infer-
ence from the evidence in favor of the prosecution. United
States v. Barner, 56 M.J. 131, 134 (C.A.A.F. 2001) (citations
omitted). The standard for legal sufficiency is “a very low
threshold to sustain a conviction.” United States v. King, 78
M.J. 218, 221 (C.A.A.F. 2019) (internal quotation marks
omitted) (citation omitted). However, if there is no rational
basis for the factfinder to draw an inference from the evi-
dence in favor of the prosecution, and if this results in a
failure of proof of an essential element, this Court will set
aside the corresponding conviction. See United States v.
Plant, 74 M.J. 297, 299-300 (C.A.A.F. 2015) (setting aside
findings of guilt for child endangerment where proof of the
appellant’s drinking excessive amounts of alcohol while
caring for his young child did not substantiate a reasonable
probability that the child, who was placed in his crib during
ordinary bedtime hours, would experience harm).
C. Discussion
As an initial matter, we note that contrary to Appel-
lant’s argument, our legal sufficiency review of his convic-
tion for wrongful use of Ambien is limited to the evidence
that was presented to the trier of fact during the trial.
10
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
United States v. Bethea, 22 C.M.A. 223, 225, 46 C.M.R. 223,
225 (1973); see also United States v. Beatty, 64 M.J. 456,
458 (C.A.A.F. 2007) (“In a succession of early cases, we es-
tablished that the review of findings—of guilt and inno-
cence—was limited to the evidence presented at trial.” (ci-
tations omitted)). Therefore, although we may consider all
of the evidence that was admitted during the contested
phase of this case (including those matters of which the
military judge took judicial notice), in the course of decid-
ing whether Appellant’s conviction for wrongful use of Am-
bien is legally sufficient, we may not reach beyond that ev-
idence and look at the admissions or statements made by
Appellant during his guilty plea Care inquiry.
We also acknowledge at the outset that the standard of
review to be applied for legal sufficiency is a decidedly fa-
vorable one for the government. As noted above, this Court
is required to view not only the evidence, but also all the
reasonable inferences that can be drawn from that evi-
dence, in the light most favorable to the prosecution.
Young, 64 M.J. at 407; Barner, 56 M.J. at 134. Therefore,
although the Government in the instant case can point to
no direct evidence that Appellant engaged in the wrongful
use of Ambien, it properly urges this Court to consider
what it characterizes as “four key reasonable inferences”
and then to affirm Appellant’s conviction for wrongful use
of Ambien. We will review each of these proffered “reason-
able inferences” directly below.
First, the Government argues that when we juxtapose
(a) the trial evidence demonstrating that Appellant knew
that Ambien should only be taken shortly before going to
bed when the user can sleep solidly for seven to eight hours,
with (b) the trial evidence demonstrating that Appellant
took Ambien before 6:00 p.m. on the day of the incident,
this Court should infer that Appellant was not using this
sleep medication for its proper purpose but rather was us-
ing it “wrongfully.” However, we are not convinced of the
reasonableness of this inference. In essence, the Govern-
ment is asking this Court to conclude that Appellant’s con-
viction for wrongful use of Ambien is legally sufficient
11
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
because he took his prescribed medication a few hours be-
fore the Government feels he should have taken it. This is
a thin reed upon which to base a “reasonable” inference. 5
Second, the Government argues that because the “Am-
bien prescription label” 6 and a brown paper bag were ob-
served in Appellant’s car two months after the incident,
Appellant must have used the Ambien while still in his car
rather than at home where he could be prepared to go to
sleep. Again, we are not convinced of the reasonableness of
this inference. We first note that there is no evidence in the
record that the prescription bottle was found in Appellant’s
vehicle. And second, as his counsel persuasively argues,
there is no reason to conclude that Appellant was required
to have the drug literature and brown paper bag with him
in order for him to lawfully use the prescribed medication. 7
Third, the Government argues that because Appellant
was still partially in his duty uniform at the time of the
police encounter, he must have taken the prescription be-
fore getting home and properly preparing for sleep. How-
ever, there is no evidence in the record that Appellant’s
blouse—which the Government concedes Appellant was
not wearing—was anywhere in his vehicle at the time of
5 This is particularly so in light of the fact that Appellant
could have specifically chosen to take the Ambien early on a
weekend with the express hope that he would be able to go to
bed and have uninterrupted sleep for more than seven-to-eight
hours.
6 What the Government describes as the “prescription label”
actually appears to be the paperwork that routinely accompa-
nies any prescription.
7 Further, the reasonableness of this inference is mitigated
by the fact that Appellant could have merely opened and dis-
carded the bag and the drug literature in his car while in the
process of ensuring that the pharmacy had given him the correct
prescription, and that he actually took the medication later in
his apartment.
12
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
the police encounter, thereby undermining the Govern-
ment’s factual predicate. 8
And fourth, the Government argues that because Ap-
pellant did not need to fall asleep in the late afternoon or
early evening in order to get up in time to work a night
shift, this shows that he must have been misusing the Am-
bien when he took it during that time frame. However, just
as with the first “key reasonable inference,” the Govern-
ment’s reliance on this timing is misplaced. A person who
has been suffering from insomnia may certainly choose to
properly take Ambien in the late afternoon or early evening
on a Friday in order to get as much sleep as he or she pos-
sibly can during the weekend, completely unconnected to
any need to get up to work a night shift.
In light of these points, we are compelled to conclude
that what the Government cites as “four key reasonable in-
ferences” would be better characterized as understanda-
ble—but not compelling—suspicions, speculations, and
suppositions. And those types of considerations, standing
alone, are not enough to sustain a conviction even though
this Court remains fully committed to the “very low thresh-
old” standard applicable during a legal sufficiency review.
King, 78 M.J. at 221 (citation omitted).
This position is consistent with the views expressed by
some federal circuit courts as laid out below.
“[W]e do not give the government the benefit of every
potential inference but rather, only those inferences rea-
sonably and logically flowing from the other evidence ad-
duced at trial.” United States v. Santistevan, 39 F.3d 250,
258 (10th Cir. 1994). An inference is unreasonable if it re-
quires the jury “to engage in a degree of speculation and
8 Further, the Government’s position is counterbalanced by
the reasonable inference that a person who is taking Ambien for
the first time might not immediately and fully disrobe but rather
would get comfortable and relax for a while in his apartment to
see how quickly and effectively the medication really works be-
fore going through the whole process—in the late afternoon—of
putting on some form of sleepwear.
13
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
conjecture that renders its findings a guess or mere possi-
bility.” United States v. Jones, 44 F.3d 860, 865 (10th Cir.
1995) (internal quotation marks omitted) (citation omit-
ted). After all, “[i]nferences must stop at some point.”
United States v. Crain, 33 F.3d 480, 487 (5th Cir. 1994). To
this end, at “some point along a rational continuum, infer-
ences may become so attenuated from underlying evidence
as to cast doubt on the trier of fact’s ultimate conclusion.”
United States v. Summers, 414 F.3d 1287, 1295 (10th Cir.
2005); Sunward Corp. v. Dun & Bradstreet, Inc., 811 F.2d
511, 521 (10th Cir. 1987).
In applying these legal principles to the facts in this
case—with special emphasis on the fact that Appellant’s
medical provider prescribed this medication for Appellant
to take—we conclude that the inferences the Government
cites in support of a legal sufficiency determination are
overly speculative and too attenuated from the evidence in
the record. Therefore, we hold that Appellant’s conviction
for wrongful use of Ambien is legally insufficient.
III. The Providence of Appellant’s Guilty
Plea to Reckless Driving
A. Standard of Review
We review a military judge’s decision to accept a guilty
plea for abuse of discretion. United States v. Forbes, 78 M.J.
279, 281 (C.A.A.F. 2019) (citation omitted). In reviewing
the providence of a plea, a military judge abuses his or her
discretion only where there is a substantial basis in law or
fact for questioning the guilty plea. United States v. Inabi-
nette, 66 M.J. 320, 322 (C.A.A.F. 2008). We “giv[e] broad
discretion to military judges in accepting [guilty] pleas.”
United States v. Moratalla, 82 M.J. 1, 4 (C.A.A.F. 2021) (al-
terations in original) (internal quotation marks omitted)
(citation omitted). However, “the military judge’s determi-
nations of questions of law arising during or after the plea
inquiry are reviewed de novo.” Inabinette, 66 M.J. at 321.
An appellant “bears the burden of establishing that the
military judge abused his discretion, i.e., that the record
shows a substantial basis in law or fact to question the
14
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
plea.” United States v. Phillips, 74 M.J. 20, 21-22 (C.A.A.F.
2015) (citation omitted).
B. Applicable Law
The elements for Article 113 (reckless operation of a ve-
hicle) as relevant to this case are as follows:
(1) That the accused was operating or in physical
control of a vehicle . . . ; and
(2) That while operating or in physical control of a
vehicle . . . the accused—
(a) did so in a wanton or reckless manner.
MCM pt. IV, para. 51.b.(1)-(2) (2019 ed.). With regard to
this offense, the MCM defines “reckless” as “a culpable dis-
regard of foreseeable consequences to others from the act
or omission involved.” Id. para. 51.c.(7).
A providence inquiry into a guilty plea must establish
that the accused himself believes he is guilty and “the fac-
tual circumstances as revealed by the accused himself ob-
jectively support that plea.” United States v. Higgins, 40
M.J. 67, 68 (C.M.A. 1994) (internal quotation marks omit-
ted) (citation omitted). In reviewing the providence inquiry
for a guilty plea, this Court considers an appellant’s collo-
quy with the military judge, as well as any inferences that
may be reasonably drawn from it. United States v. Carr, 65
M.J. 39, 41 (C.A.A.F. 2007). An appellant’s inability to re-
call specific facts underlying his or her offense does not ren-
der the guilty plea improvident. United States v. Jones, 69
M.J. 294, 299 (C.A.A.F. 2011); United States v. Moglia, 3
M.J. 216, 218 (C.M.A. 1977). Although “personal aware-
ness is not a prerequisite for a plea of guilty . . . an inquiry
must be made to ascertain if an accused is convinced of his
own guilt. Such a conviction . . . may be predicated on an
accused’s assessment of the [g]overnment’s evidence
against him.” Moglia, 3 M.J. at 218.
Article 45(a), UCMJ, 10 U.S.C. § 845(a) (2018), requires
a guilty plea to be rejected when inconsistent matters arise
that cannot be resolved. “[I]nconsistencies and apparent
defenses must be resolved by the military judge or the
15
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
guilty plea[] must be rejected.” United States v. Pinero, 60
M.J. 31, 34 (C.A.A.F. 2004) (internal quotation marks omit-
ted) (citation omitted). The “possible defense” standard is
the threshold for a military judge to inquire into potential
affirmative defenses during a plea colloquy. United States
v. Hayes, 70 M.J. 454, 458 (C.A.A.F. 2012). This standard
“is a lower threshold than a prima facie showing because it
is intended as a trigger to prompt further inquiry pursuant
to Article 45, UCMJ,” and Care. Id. Moreover, the “possible
defense” standard requires that “the acceptance of a guilty
plea be accompanied by certain safeguards to [e]nsure the
providence of the plea, including the delineation of the ele-
ments of the offense charged and admission of factual guilt
on the record” are in line with Article 45. Id. (internal quo-
tation marks omitted) (citation omitted).
Military law recognizes the affirmative defense of au-
tomatism, which is “[a]ction or conduct occurring without
will, purpose, or reasoned intention,” “behavior carried out
in a state of unconsciousness or mental disassociation with-
out full awareness,” and “[t]he physical and mental state of
a person, who though capable of action, is not conscious of
his or her actions.” United States v. Torres, 74 M.J. 154,
156 n.3 (C.A.A.F. 2015) (alterations in original) (internal
quotation marks omitted) (citation omitted). An accused
“cannot be held criminally liable in a case where the actus
reus is absent because the accused did not act voluntarily,
or where the mens rea is absent because the accused did
not possess the necessary state of mind when he committed
the involuntary act.” Id. at 157.
In Torres, we observed that previously, “[n]either the
UCMJ nor this Court’s precedent [had] provided definitive
guidance regarding whether automatism should be viewed
as negating the mens rea or the actus reus of a charged
offense.” Id. Although in Torres we recognized that our
“predecessor [court] indicated in dicta that the mens rea
approach may be the most appropriate,” Torres conclu-
sively resolved the issue when it held, “[i]n cases where the
issue of automatism has been reasonably raised by the ev-
idence, a military judge should instruct the panel that
16
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
automatism may serve to negate the actus reus of a crimi-
nal offense.” Id. at 157-58.
And finally, “[i]n determining the providence of [an]
appellant’s pleas, it is uncontroverted that an appellate
court must consider the entire record in a case.” United
States v. Johnson, 42 M.J. 443, 445 (C.A.A.F. 1995)
(citations omitted).
C. Discussion
In resolving this issue, we do not discount Appellant’s
argument that his reckless driving was the product of au-
tomatism. As discussed above, the FDA officially acknowl-
edges that “sleep-driving” is a potential side effect of Am-
bien. However, in the course of reviewing the providence of
Appellant’s guilty plea, we place great emphasis on the fact
that when the military judge reopened the Care inquiry for
Appellant’s guilty plea to this offense, he squarely ad-
dressed the issue of automatism, and Appellant affirma-
tively declined to avail himself of this defense.
Specifically, the military judge informed Appellant that
military law recognizes the defense of automatism. Con-
sistent with our holding in Torres, the military judge also
explained to Appellant that the defense of automatism per-
tains to the actus reus element of the offense (rather than
to the mens rea element). See 74 M.J. at 157-58. And sig-
nificantly, the military judge took a break in the proceed-
ings to give Appellant the opportunity to discuss this issue
with his defense counsel. Then, when the court-martial
proceedings resumed, the military judge further explored
the defense of automatism to see if Appellant wished to in-
voke it—and yet Appellant decided not to do so. To be sure,
Appellant’s responses to questions posed by the military
judge were not a model of clarity, but they also were not
conclusory in nature or merely clipped responses to leading
questions. Rather, Appellant provided moderately well-
reasoned responses to the military judge’s renewed ques-
tions, and these responses drew from the observations of
neutral observers, see Moglia, 3 M.J. at 218, his own (albeit
disjointed and fragmentary) memories of the event, and his
17
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
prior knowledge that Ambien could impair one’s ability to
safely drive a vehicle.
And so, when it comes to the actus reus of the charged
offense, Appellant stated that (a) he was convinced of his
own guilt, and (b) he had reached this conclusion based—
in large part—on the strength of the Government’s evi-
dence against him. In regard to this second point, this basis
for pleading guilty is admittedly unusual in the military
justice system. Further it has a bit of a nolo contendere 9 air
to it, and military law does not permit such pleas. See
United States v. Forester, 48 M.J. 1, 3 n.2 (C.A.A.F. 1998)
(“This is contrary to what can be done in the civilian federal
courts, where a defendant may plead no contest, or nolo
contendere, to an offense.”). However, our case law demon-
strates that such guilty pleas where an accused primarily
relies on the strength of the evidence against him rather
than on his own independent recollections of his actions are
permissible. In Jones, this Court held: “If an accused is per-
sonally convinced of his guilt based upon an assessment of
the government’s evidence, his inability to recall the spe-
cific facts underlying his offense without assistance does
not preclude his guilty plea from being provident.” 69 M.J.
at 299.
Turning to the issue of the mens rea of the offense,
things become less clear. However, the military judge cor-
rectly defined “recklessness” and Appellant said he under-
stood that definition. The military judge then engaged in a
colloquy with him about why he believed his conduct was
“reckless.” To be sure, a review of the record demonstrates
that Appellant’s responses were not neatly tailored to the
mens rea issue. He talked more about his actions than
what was going through his mind at the time of those ac-
tions. However, this Court is required to draw reasonable
inferences in such instances. See Carr, 65 M.J. at 41. And
9 “Nolo contendere” or “no contest” means “[a] criminal de-
fendant’s plea that, while not admitting guilt, the defendant will
not dispute the charge.” No Contest, Black’s Law Dictionary,
(12th ed. 2024).
18
United States v. Navarro Aguirre, No. 24-0146/AF
Opinion of the Court
a reasonable inference drawn from the facts elicited during
the Care inquiry was that Appellant knew that taking Am-
bien would impair his ability to safely drive his car, and
that he recognized, and culpably disregarded, the foresee-
able consequences to others (i.e., putting them at risk of
being physically harmed) when he drove his car in such a
dangerous manner after taking the medication.
In light of the foregoing, we conclude that the military
judge did not abuse his discretion when he accepted Appel-
lant’s guilty pleas at issue. See Inabinette, 66 M.J. at 322.
IV. Decision
The decision of the United States Air Force Court of
Criminal Appeals is reversed as to Specification 2 of
Charge II (wrongful use of zolpidem/Ambien) and sentence.
The finding of guilty with respect to this specification is set
aside, and Specification 2 of Charge II is dismissed. We af-
firm the lower court with respect to all other findings. The
record of trial is returned to the Judge Advocate General of
the Air Force for remand to the Court of Criminal Appeals
for reassessment of the sentence or for a rehearing on the
sentence, if necessary.
19
United States v. Navarro Aguirre, No. 24-0146/AF
Judge JOHNSON concurring in part and dissenting in
part.
I join Part II of the Court’s opinion in concluding Appel-
lant’s conviction for wrongful use of Ambien was legally in-
sufficient. I part ways with the Court over its resolution of
the providency of Appellant’s guilty plea to reckless driv-
ing. Because I conclude the record does not support an in-
ference Appellant acted with the requisite mens rea, I re-
spectfully dissent from Part III of the Court’s opinion.
The crux of my disagreement turns on the Court’s treat-
ment of Appellant’s mens rea. The Court writes:
And a reasonable inference drawn from the facts
elicited during the Care inquiry was that
Appellant knew that taking Ambien would impair
his ability to safely drive his car, and that he
recognized, and culpably disregarded, the
foreseeable consequences to others (i.e., putting
them at risk of being physically harmed) when he
drove his car in such a dangerous manner after
taking the medication.
United States v. Navarro Aguirre, __ M.J. __ (18-19)
(C.A.A.F. 2025). As the majority correctly notes, consuming
a lawfully prescribed medication is not a defense if the user
culpably disregards the foreseeable consequences to others.
But in my view, we cannot reasonably infer that Appellant
culpably disregarded the risk to others by using lawfully
prescribed medication, at the correct dosage, immediately
prior to sleeping, as it was intended.
We review a military judge’s acceptance of a plea for
abuse of discretion. United States v. Inabinette, 66 M.J.
320, 322 (C.A.A.F. 2008). A plea that departs from the
requirements of Article 45(a), UCMJ, is harmless “if the
variance does not materially prejudice the substantial
rights of the accused.” Article 45(c), UCMJ, 10 U.S.C.
§ 845(c) (2018).
In assessing whether the military judge abused his dis-
cretion in accepting a plea, “[i]t is not enough to elicit legal
conclusions. The military judge must elicit facts to support
the plea of guilty.” United States v. Jordan, 57 M.J. 236,
238 (C.A.A.F. 2002). “[A]n accused cannot be held crimi-
nally liable in a case where . . . mens rea is absent because
United States v. Navarro Aguirre, No. 24-0146/AF
Judge JOHNSON, concurring in part and dissenting in part
the accused did not possess the necessary state of mind.”
United States v. Torres, 74 M.J. 154, 157 (C.A.A.F. 2015).
A conviction under Article 113, UCMJ, requires a mens rea
of recklessness. Manual for Courts-Martial, United States
pt. IV, para. 51.b.(2)(a). “Recklessness is not determined
solely by . . . proof alone of excessive speed or erratic oper-
ation,” but by considering “all the circumstances.” Id. at
para. 51.c.(7). It requires “a culpable disregard of foreseea-
ble consequences to others.” Id. (emphasis added).
Concerning Appellant’s mens rea, although I agree with
the Court “things become less clear,” Navarro Aguirre, __
M.J. at __ (18), in my view, the circumstances do not sug-
gest a culpable disregard of foreseeable consequences to
others. Appellant was prescribed Ambien on September
30th, the day before the events in question. There is no ev-
idence he had ever taken Ambien before 1 or had any per-
sonal knowledge of how it would affect him. The prescrib-
ing nurse practitioner testified that people’s reactions to
Ambien use differ, so people “have to govern [their] re-
sponse based on [their] own knowledge after taking [it] at
least once or a few times to know” how it affects them. She
never testified to informing Appellant of the possibility of
sleep driving as a side effect. Nor is there evidence in the
record to support that Appellant was aware that “complex
sleep behaviors, including . . . sleep-driving,” was a known
side effect, or that he may be susceptible to it.
The next day, Appellant left work and arrived at his
apartment around 2:30 p.m. and decided to sleep. After all,
he “hadn’t slept in almost two days,” so, he took “the pre-
scribed dose of one pill.” Before his memory faded, he re-
called lying in bed with his blouse and shoes off. “After a
little while, [he] fell asleep in bed in [his] apartment.”
Appellant admitted he “was aware that Ambien was
pretty potent stuff, and [he knew] it [meant] sleeping could
have effects on your driving, operating machinery and
whatnot.” However, knowing that a medication could cause
1 That Appellant had not slept in two days supports the
inference that he did not take any Ambien on the day he picked
up his prescription.
2
United States v. Navarro Aguirre, No. 24-0146/AF
Judge JOHNSON, concurring in part and dissenting in part
drowsiness is different from knowing that a known side ef-
fect of the medication is that it can cause sleep driving. 2
Moreover, according to his admissions, Appellant did not
take the Ambien until he got home. He did not take it while
expecting to get behind the wheel. And he did not take it
thinking he would go for a drive. In other words, he never
describes his mental state as:
[c]haracterized by the creation of a substantial
and unjustifiable risk of harm to others and by a
conscious (and sometimes deliberate) disregard
for or indifference to that risk; heedless; rash.
Reckless conduct is more than mere negligence: it
is a gross deviation from what a reasonable person
would do.
Reckless, Black’s Law Dictionary (12th ed. 2024). In crimi-
nal trials, recklessness contains both an objective and sub-
jective component. See Safeco Ins. Co. of Am. v. Burr, 551
U.S. 47, 68 n.18 (2007). The creation of a substantial and
unjustifiable risk is measured against an objective stand-
ard, id. at 68, while the conscious disregard reflects the
need for “subjective knowledge on the part of the offender.”
Id. at 68 n.18. While the Court speaks to the objective com-
ponent—the nature of his driving—it does not address
whether Appellant had the subjective understanding that
he was culpably disregarding this risk.
Instead, the record reflects a man using his lawfully
prescribed medication, at the correct dosage, immediately
prior to sleeping, as it was intended. This conclusion is con-
sistent with the Court’s conclusion that the Appellant did
not wrongfully use his prescription. In my opinion, neither
Appellant’s words nor actions demonstrate a culpable dis-
regard for the foreseeable consequences.
The United States Court of Appeals for the Third Cir-
cuit came to a similar conclusion in Government of Virgin
2 I agree with the Court’s decision that Appellant’s actus reus
was appropriately resolved by the military judge’s questions.
Although Appellant’s automatism defense addresses the actus
reus of a crime, Torres, 74 M.J. at 157-58, Appellant still needed
to show he had the reckless mens rea for his plea to be provident.
3
United States v. Navarro Aguirre, No. 24-0146/AF
Judge JOHNSON, concurring in part and dissenting in part
Islands v. Smith, concerning an appellant who was alleg-
edly unconscious as the result of an epileptic seizure:
It has been held that the operator of an automo-
bile who is suddenly stricken by an illness which
he had no reason to anticipate but which renders
it impossible for him to control the car is not
chargeable with negligence. On the other hand it
has also been held that an operator of a motor ve-
hicle, unconscious from illness at the time of the
accident, may nonetheless be found guilty of crim-
inal negligence in having undertaken to drive the
vehicle if he knew at the time that he might black
out or lose consciousness while doing so.
278 F.2d 169, 174-75 (3d Cir. 1960) (listing cases) (cited
with approval in Torres, 74 M.J. at 157). This case resem-
bles the former situation, rather than the latter. Nothing
in the record suggests Appellant knew or disregarded the
chance he would be subject to a rare side effect of Ambien.
Of course, Appellant did admit his car “was seen reck-
lessly weaving and blocking traffic.” He also agreed that he
drove his vehicle voluntarily. But as the Court correctly de-
scribes, these solitary statements fail to touch on his men-
tal state. Considering his driving “under all the circum-
stances” paints the picture of a man wanting to sleep, going
to bed, and intending to sleep. MCM pt. IV, para. 51.c.(7).
These statements should also be viewed in light of the mil-
itary judge’s instructions. Upon reopening the guilty plea,
the military judge gave Appellant the voluntary intoxica-
tion instruction, saying “tak[ing] a drug voluntarily is not
a defense.” 3 Appellant, intending to sleep, did take Ambien
voluntarily; so after being told that this could not be a
3 Appellant did not raise instructional error on appeal, but
his admissions raise the defense of involuntary intoxication.
“[I]ntoxication is involuntary when an accused is unaware of the
effect of a drug or substance on him.” United States v.
MacDonald, 73 M.J. 426, 437-48 (C.A.A.F. 2014). “Among the
circumstances of intoxication said to be involuntary is the
circumstance in which, as a result of a genuine mistake as to the
nature or character of the liquor or drug, the drunkenness has
resulted from taking something not known to be capable of
producing such a result.” United States v. Ward, 14 M.J. 950,
953 (A.C.M.R. 1982).
4
United States v. Navarro Aguirre, No. 24-0146/AF
Judge JOHNSON, concurring in part and dissenting in part
defense to his conduct, Appellant naturally agreed with the
military judge.
Appellant’s admissions fail to establish his actions were
a result of a culpable disregard of any consequences. In
light of this, his mental state does not rise to the reckless
mens rea. Absent mens rea, I would hold Appellant was
materially prejudiced by the military judge’s acceptance of
his guilty plea and his plea should be held improvident.
5