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Wallace & Layne v. United States

2026-08-27

Summary

Holding. The trial court's decision to admit Officer Scott Brown's expert testimony regarding narcotics and drug distribution was not an abuse of discretion; the trial judge's questioning of witnesses did not constitute error harmful to the defendant's substantial rights; and there was sufficient evidence to support both Wallace's conviction for possession with intent to distribute crack cocaine and Layne's convictions for the offenses charged. All convictions are affirmed.

Elliott Wallace and Antoine Layne appealed their convictions for firearm and drug offenses following a traffic stop in Washington, D.C. Both defendants challenged the admissibility of expert testimony from Officer Scott Brown, an MPD narcotics officer, regarding the intent to distribute drugs found in their possession. Officer Brown testified that the quantity, packaging, and circumstances surrounding the seized drugs indicated distribution rather than personal use. The defense objected to Officer Brown's qualification as an expert on N,N-dimethylpentylone ("boot"), a newer drug in the D.C. market, contending he lacked sufficient knowledge and experience with that particular substance. Additionally, Layne argued that the trial judge improperly questioned witnesses during testimony in a manner that suggested partiality, and Wallace challenged the sufficiency of evidence supporting his possession-with-intent-to-distribute conviction for crack cocaine.

The appellate court upheld the trial court's decision to admit Officer Brown's expert testimony, finding that although boot was a relatively new trend, Officer Brown possessed sufficient general narcotics expertise, familiarity with the drug in the local context, and analogical knowledge comparing boot to crack cocaine. The court determined that deficiencies in Officer Brown's specific knowledge of boot were matters of credibility and weight for the jury to assess through cross-examination rather than grounds for exclusion. The court also rejected Layne's challenge to the trial judge's questioning of witnesses, concluding that the questions merely clarified existing lines of inquiry and were not improper. Finally, the court found sufficient evidence to support Wallace's conviction, including expert testimony about quantity and packaging, the presence of cash in multiple denominations, a firearm, and a variety of drug types.

Summary generated by law.co from the public-domain opinion. The opinion text itself is public domain.

Key issues

  • Admissibility of expert testimony on narcotics distribution from an officer with limited specific experience with a newly prevalent drug
  • Whether deficiencies in an expert's knowledge are grounds for exclusion or matters of weight and credibility for jury determination
  • Impartiality of trial judge when judge questions witnesses during testimony
  • Sufficiency of evidence to establish intent to distribute based on quantity, packaging, and circumstantial factors

Procedural posture

Appeals from two District of Columbia Superior Court convictions for firearm and drug offenses, heard by the District of Columbia Court of Appeals.

Authorities cited

Opinion

majority opinion

Notice: This opinion is subject to formal revision before publication in the Atlantic and Maryland Reporters. Users are requested to notify the Clerk of the Court of any formal errors so that corrections may be made before the bound volumes go to press.

DISTRICT OF COLUMBIA COURT OF APPEALS

Nos. 24-CF-0043 & 24-CF-0156

ELLIOTT WALLACE, APPELLANT,

and

ANTOINE LAYNE, APPELLANT,

V.

UNITED STATES, APPELLEE.

Appeals from the Superior Court

of the District of Columbia

(2022-CF2-005858 & 2023-CF2-002579)

(Erik Christian, Judge)

(Argued January 8, 2026 Decided August 27, 2026)

Michael Bruckheim for appellant Elliott Wallace.

Justin A. Okezie, appointed by the court, argued the case for appellant Antoine Layne. After the case was argued, this court granted Justin A. Okezie’s motion to withdraw as counsel of record. Anne Keith Walton was on the brief for appellant Antoine Layne.

Michael E. McGovern, Assistant United States Attorney, with whom Jeanine Ferris Pirro, United States Attorney, and Chrisellen R. Kolb, Nicholas P. Coleman, Sara Matar, and Molly Smith, Assistant United States Attorneys, were on the brief, for appellee.

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Before DEAHL, HOWARD, and SHANKER, Associate Judges.

Opinion of the court by Associate Judge HOWARD.

Opinion by Associate Judge DEAHL, concurring in part and dissenting in part,

at page 25.

HOWARD, Associate Judge: Metropolitan Police Department (MPD) officers

conducted a traffic stop on appellants Elliott Wallace and Antoine Layne, * who were

subsequently arrested and charged with several firearm and drug offenses. At trial,

over the objection of both appellants’ counsels, the government relied on expert

testimony from an MPD officer regarding the packaging, distribution, price, and use

of the narcotics seized during this traffic stop. Relying on this testimony and other

evidence presented, the jury convicted Mr. Wallace and Mr. Layne. On appeal, both

appellants argue that the trial court erred by admitting unreliable expert testimony

from the government’s narcotics expert. In addition, Mr. Wallace argues that there

was insufficient evidence to support his conviction for possession with the intent to

distribute (PWID), and Mr. Layne argues that the trial court improperly acted in a

partisan manner by interfering in the testimony of several witnesses. For the reasons

below, we affirm on all counts.

*

Appellant Mr. Layne’s motion for a temporary stay is denied as moot. Judge Deahl would have granted the motion.

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I. Background

A. The Traffic Stop

On October 2, 2022, Sergeant Owais Akhtar from the MPD’s Crime

Suppression Team (CST) was on patrol in the Northwest quadrant of D.C. At

approximately 5:30 p.m., Sgt. Akhtar observed a black BMW with heavily tinted

windows and a plastic cover on the license plate, which was an equipment violation.

Sgt. Akhtar pulled the car over near the intersection of 5th Street and T Street NW.

Sgt. Akhtar identified the driver of the vehicle as appellant Mr. Wallace, the front

passenger as Jowan Plummer, and the backseat passenger as appellant Mr. Layne.

At this time, additional CST officers arrived, including Officers Dawes and

Merricks.

During the traffic stop, Sgt. Akhtar noticed Mr. Plummer reach under his seat

with his hand a couple of times. Officer Dawes, standing near the open, rear driver’sside window, could see inside the car and noticed Mr. Layne fidgeting with his

phone and kicking something underneath the passenger-side seat in front of him.

Officer Dawes used his flashlight to get a better look at what Mr. Layne was

attempting to conceal with his foot under the seat but did not yet see what the object

was. Sgt. Akhtar then asked all the men to step out of the vehicle, and the men were

detained.

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Once the three men were out of the vehicle, the officers observed in the

backseat of the vehicle an open bottle of Remy Martin 1738, which had brown liquid

inside it, as well as a blue solo cup with similar liquid in it from the front seat

cupholder. The officers then observed a firearm underneath the front passenger-side

seat where they had seen Mr. Plummer reach under and Mr. Layne fidget with his

feet. Officer Dawes seized the firearm, which had a round in the chamber and twelve

rounds in the magazine.

Officers then searched Mr. Wallace’s person and found $405 in cash and a

bag of suspected drugs. The drugs included (1) thirteen small individual bags of a

rock substance that tested positive for crack cocaine and N,N-dimethylpentylone,

(2) three small bags of a white powder substance that tested positive for cocaine,

fentanyl, and 4-ANPP, and (3) a vial of amber colored liquid that tested positive for

PCP. Officers also searched Mr. Layne’s person and found $284 in cash and a

sandwich bag containing two individual bags of a white, rock substance that tested

positive for N,N-dimethylpentylone.

All three men were arrested at the end of the traffic stop. Relevant to this

appeal, the government charged Mr. Wallace and Mr. Layne with several firearm

and drug offenses.

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B. Trial

The case proceeded to a jury trial. At the outset, the trial court instructed the

jury that any actions or questions from the trial judge should not be construed as

conveying any opinion of the trial judge, and instead the jury has the sole

responsibility for deciding the case. In fact, several times during trial, the judge

asked questions of the witnesses, for example, asking Sgt. Akhtar to further explain

how he spotted the equipment violation leading to the traffic stop, asking Sgt. Akhtar

how he requested the individuals exit the vehicle, and asking an investigator how

buccal swabs are collected. Before jury deliberations, the trial judge reiterated to the

jury that any comments, questions, or rulings made by the judge during trial were

not indicative of any opinion of the court, and that the jury had the sole decisionmaking authority.

At the end of trial, the jury found Mr. Wallace guilty of PWID a controlled

substance (Cocaine), possession of liquid PCP; and possession of cocaine (which

merged with his PWID charge for sentencing). Mr. Wallace was sentenced to forty

months of incarceration followed by five years of supervised release. Mr. Layne was

found guilty of PWID a controlled substance (N,N-Dimethylpentylone) while

armed, possession of a firearm during a crime of violence or dangerous offense,

possession of N,N-Dimethylpentylone (merged with PWID), unlawful possession of

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a firearm (prior conviction), carrying a pistol without a license, possession of an

unregistered firearm, and unlawful possession of ammunition. Mr. Layne was

sentenced to 210 months of incarceration followed by three years of supervised

release. The evidence presented at trial is the key issue on appeal, so we will examine

both sides’ evidence at the trial court, as it is relevant to this appeal, in greater detail

below.

1. The Government’s Evidence

The government presented eleven witnesses at trial, including several of the

officers involved with the traffic stop. Officer Dawes testified that Mr. Layne

fidgeted with something under the front seat of the vehicle, that he seized an open

liquor bottle and firearm from the vehicle, and that he observed no drug

paraphernalia, powder, or containers in the car upon searching it. Officer Dawes also

testified regarding the drugs and cash found in Mr. Wallace’s jacket pocket when

another officer conducted a search incident to arrest. Sgt. Akhtar, who initiated the

traffic stop, testified that Mr. Wallace was cooperative during the stop and did not

appear to be under the influence of drugs. After the pat down and searches of both

appellants, Sgt. Akhtar supervised the processing of the seized drugs into evidence.

Finally, Officer Merricks testified that she responded to the scene and seized a bag

of drugs and cash from Mr. Layne.

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The government also called several forensic experts who testified regarding

the drugs that were found on appellants’ during the stop. Kyle Brown, a forensic

chemistry supervisor, tested the drugs found during the traffic stop and identified

cocaine, N,N-dimethylpentylone, ANPP, fentanyl, and PCP on Mr. Wallace and

N,N-dimethylpentylone on Mr. Layne. Mr. Brown noted that the drug samples that

were tested were not tested for purity. Brittany Argento, also a forensic chemist,

testified that she tested the drugs found by the officers during the traffic stop and

confirmed the presence of the same drugs as those Mr. Brown testified to.

a. Officer Scott Brown

Most notable to this appeal, the government relied on expert testimony from

Officer Scott Brown, an MPD officer of over thirty-two years who works on

narcotics investigations. The government provided notice that it intended to call

Officer Brown as a narcotics expert, and defense counsel objected and sought to

conduct voir dire on Officer Brown’s knowledge of N,N-dimethylpentylone. Prior

to defense counsel’s voir dire, Officer Brown testified regarding his expertise in

narcotics. Officer Brown had spent the last twenty years in the Violent Crime

Suppression Division, and the last thirteen in the FBI Safe Streets Task Force,

focused on narcotics work. Officer Brown also often taught classes on drug trends

in D.C. Officer Brown was familiar with the most common drugs in D.C. and

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continued to keep himself knowledgeable on drug trends in D.C. by training and

speaking with other law enforcement agents, drug arrestees, and confidential

informants.

Officer Brown then testified about N,N-dimethylpentylone, which he noted

was more commonly referred to as “boot.” Officer Brown stated that boot was a new

trend in D.C. that he had started seeing more of in the last six months, and Officer

Brown had about a dozen cases of his own dealing with boot. Officer Brown also

discussed boot with confidential sources and other law enforcement agents who were

more knowledgeable on boot than he was. Officer Brown described boot as a drug

that comes in a powder or hard rock substance similar to cocaine and is consumed

in a manner similar to cocaine. Officer Brown noted that boot is a “cheap version of

crack cocaine.” Officer Brown later mentioned that he spoke with another officer

about boot a week before testifying, and he interviewed one or two sources

specifically about boot, with the most recent happening three months before his

testimony.

During voir dire, defense counsel objected to Officer Brown being certified

as an expert due to his lack of knowledge on N,N-dimethylpentylone, or boot. The

defense pointed out that Officer Brown consistently mispronounced the narcotic as

“dimethylon pentylonen,” he had only recently come across boot in the last six

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months, he had taught no classes or written any papers on boot, and the drug chart

Officer Brown produced was from 2020 and did not include any information on boot.

Counsel for Mr. Layne emphasized that Officer Brown did not have the requisite

expertise in boot to qualify him as an expert in the use and distribution of boot.

Counsel for Mr. Wallace cosigned this argument, arguing that because it could not

be determined what percentage of the drugs found on Mr. Wallace and tested was

boot, Officer Brown was not qualified to testify as an expert on the narcotic. The

trial court overruled both objections and allowed Officer Brown to be certified as an

expert, citing that he had sufficient knowledge on narcotics in general, and that he

could opine as to whether the drugs found on the appellants were for distribution or

personal use. The trial court stated that the defense could challenge Officer Brown’s

credibility on cross examination.

On direct examination, Officer Brown stated that the quantity of drugs found

on the appellants during the traffic stop was “more consistent with” distribution than

with personal use. Officer Brown noted that the thirteen individual bags of crack

cocaine and boot found on Mr. Wallace’s person would have a street value of about

$1,300, and the two bags of boot found on Mr. Layne’s person would have a street

value of about $150 to $300. Officer Brown testified that users do not buy crack

cocaine in “bulk,” and the amount of crack cocaine in just one of the larger thirteen

bags found on Mr. Wallace could cause an overdose if someone attempted to ingest

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it all. In addition, Officer Brown made several other observations that bolstered his

view that the drugs were possessed for distribution instead of personal use,

including: (1) the presence of a gun, possibly for protection, (2) the lack of drug

paraphernalia in the car to ingest the drugs, (3) that the drugs found on Mr. Wallace

were packaged for ease of distribution, (4) the amount and denominations of cash

the appellants were found with, (5) the variety of drugs Mr. Wallace was found with,

since it was not normal for someone to have multiple different substances at once

unless they were selling one, and (6) the amount of PCP and fentanyl found on

Mr. Wallace, which in contrast were of a quantity that were clearly consistent with

personal use.

2. The Defense’s Evidence

Mr. Layne called no witnesses, but Mr. Wallace called three. 1 Mr. Wallace

first called Chenae Priester, his neighbor, who testified that she had known

Mr. Wallace for over a year and during that time had seen him use crack cocaine

about a hundred times, essentially anytime that she saw him. Next Mr. Wallace

called Alex Alexander, his employer, who testified that he knew Mr. Wallace used

1

Prior to the start of the defense’s case, counsel moved for a judgment of acquittal, which was quickly denied by the trial judge.

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crack cocaine and observed him smoking crack cocaine a few times a day while

Mr. Wallace was working for him.

Mr. Wallace then called his own narcotics expert, Myron Smith, a former

MPD detective currently residing in North Carolina, who now works as a private

narcotics consultant for trials. Based on his experience in the narcotics field,

Mr. Smith was certified as an expert for trial and examined the drug evidence

collected during the traffic stop and listened to testimony from the other witnesses.

Mr. Smith disagreed with Officer Brown’s assessment of the crack cocaine found on

Mr. Wallace, stating that the amount found was consistent with personal use.

Mr. Smith noted several factors that supported his assessment, including the context

of the traffic stop versus an observed drug deal, the lack of distribution tools, the

relatively low amounts of money found, and the variety of drugs found on

Mr. Wallace, which were not indicative of distribution instead of personal use. For

the “boot” that was found during the traffic stop, Mr. Smith noted that boot was “still

fresh” in the D.C. area, and that officers don’t know enough about its dosage to

assess how much of it a person would buy. Mr. Smith also agreed with Officer

Brown that boot is a “cheaper crack cocaine.”

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II. Discussion

On appeal, both Mr. Wallace and Mr. Layne argue that the trial court erred by

allowing Officer Brown to testify as a narcotics expert regarding boot. Appellants

argue that Officer Brown was unqualified to opine on boot given his lack of

experience with and knowledge of the narcotic, and any of his testimony regarding

appellants’ intent to distribute boot was unreliable. In addition, Mr. Layne argues

that the trial court erred by improperly questioning several government witnesses

during their testimonies, denying him his right to an impartial decisionmaker.

Mr. Wallace also argues that there was insufficient evidence to prove beyond a

reasonable doubt that he had the requisite intent to distribute crack cocaine.

Applying each respective standard of review in this close case, we affirm the court’s

ruling on all counts. We address each issue in turn.

A. The Expert Testimony of Officer Brown

We begin with the challenge that both appellants raise: the admissibility of

expert testimony from Officer Brown. “We review a trial court’s decision on the

admissibility of expert testimony for abuse of discretion.” Parker v. United States,

249 A.3d 388, 401 (D.C. 2021). We will reverse the trial court’s decision only if it

had an “improper or legally insufficient reason, if its ruling lacked a firm factual

foundation, or if the trial court otherwise failed to exercise its judgment in a rational

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and informed manner.” Faltz v. United States, 318 A.3d 338, 347 (D.C. 2024)

(quoting Hinton v. United States, 979 A.2d 663, 683-84 (D.C. 2009)). In determining

the admissibility of expert testimony, this court has adopted the reliability-based

standard set forth in Federal Rules of Evidence 702 and Daubert v. Merrell Dow

Pharmaceuticals, Inc., 509 U.S. 579, 587 (1993). See Motorola Inc. v. Murray, 147

A.3d 751, 756 (D.C. 2016) (en banc).

To determine the admissibility of expert testimony, the trial court considers

whether:

[1] the expert’s scientific, technical, or other specialized

knowledge will help the trier of fact to understand the

evidence or to determine a fact in issue; [2] the testimony

is based on sufficient facts or data; [3] the testimony is the

product of reliable principles and methods; and [4] the

expert has reliably applied the principles and methods to

the facts of the case.

Faltz, 318 A.3d at 348. This standard establishes the trial judge as a “gatekeeper”

tasked with making a “preliminary assessment” to ensure that the

“expert . . . employs in the courtroom the same level of intellectual rigor that

characterizes the practice of an expert in the relevant field.” Lewis v. United States,

263 A.3d 1049, 1059 (D.C. 2021). However, this gatekeeping role is not meant to

displace the adversary system or replace “[v]igorous cross-examination,

presentation of contrary evidence, and careful instruction on the burden of proof [as]

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the traditional and appropriate means of attacking shaky but admissible evidence.”

Id. (quoting Motorola Inc., 147 A.3d at 754).

Appellants both argue that the trial court abdicated its role as “gatekeeper” by

allowing Officer Brown to give expert testimony regarding boot without sufficient

facts or data, in violation of Motorola Inc. 2 They point out several alleged

deficiencies in Officer Brown’s expertise, including his mispronunciation of

dimethylpentylone, the fact that he first encountered boot only six months before

trial, his lack of formal training or publications on boot, that he had never been

certified as an expert on boot, and the fact that he had only a “handful” of cases and

conversations prior to trial relating to boot. Given these shortcomings, appellants

argue that speculative and unreliable expert testimony made its way to the jury,

which was an abuse of discretion. We disagree.

2

In his reply brief and during oral argument, Mr. Layne sought to advance a formalistic, procedural argument that the trial court failed to lay a foundation for a reliability assessment of the expert testimony through a proper Daubert analysis. Mr. Layne cites our recent case, Willis v. United States, 346 A.3d 1204 (D.C. 2025), to support this argument that the trial court failed to properly make a sufficient reliability assessment. The government noted at oral argument that this is a new argument distinct from the substantive challenge raised in the original brief. We agree that this procedural argument is different from the substantive, expert testimony challenge in Mr. Layne’s original brief. “We generally will not consider arguments raised for the first time in a reply brief.” Cummings v. Dep’t of Motor Vehicles, 294 A.3d 121, 128 (D.C. 2023). As a result, we will not consider this now and we focus on Mr. Layne’s substantive challenge instead.

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Mr. Wallace cites Johnson v. District of Columbia, 728 A.2d 70 (D.C. 1999),

to support his argument that Officer Brown’s testimony should not have been

admitted. This case is no longer binding given that it predates this court’s switch to

the Daubert standard, 3 but even if it were, it involved a plumber whom the appellant

sought to offer as an expert on the design and regulation of water heaters, which he

knew almost nothing about. Johnson, 728 A.2d at 74. Here, Officer Brown stated

that, although boot was a recent trend, he had dealt with it in about a dozen

investigations, he had spoken with other officers and confidential sources about it,

and he knew that boot was similar to crack cocaine, a drug that both sides agree he

is an expert on given his roughly twenty years of narcotics experience. Comparing

this level of knowledge, albeit not immense, to a witness who knew next to nothing

in Johnson is misplaced.

Mr. Layne cites several other cases in arguing a similar point. Mr. Layne notes

that in McClain v. Metabolife International, Inc., the court took issue with the expert

witness making an unreliable analogy between two drugs in a toxic tort case. 401

F.3d 1233, 1245-46 (11th Cir. 2005). Here, Officer Brown often did analogize crack

cocaine to boot, describing boot as a “cheap version of crack cocaine” with similar

3

In Johnson, the court applied the old Dyas v. United States, 376 A.2d 827 (D.C. 1977), standard for admitting expert testimony, which we have since moved away from.

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properties. But we do not have reason here to dispute that analogy, as the defense’s

own expert witness agreed that boot is a cheap version of crack cocaine. If Officer

Brown, an expert regarding the distribution of common narcotics like crack cocaine,

testified that boot was similar to crack cocaine in appearance, price, and distribution,

and those were the aspects of boot he was asked to give expert testimony on, then

we are not convinced that it was improper for Officer Brown to testify as to these

attributes. And it is important to note that Officer Brown was offered and certified

as an expert in narcotics generally, not boot, so McClain is not operable here.

Mr. Layne also relies on United States v. Valencia-Lopez, 971 F.3d 891 (9th

Cir. 2020), both in his brief and during oral argument. Mr. Layne notes that the court

in that case reversed the admission of the expert’s testimony because the expert

lacked personal or specific knowledge of the drug issues at play. Valencia-Lopez,

971 F.3d at 900-01. We have noted though, and Mr. Wallace even agrees in his brief,

that specific knowledge is not always needed for expert testimony, and sufficient

familiarity with the subject matter can be enough. See, e.g., Govan v. Brown, 228

A.3d 142, 155 (D.C. 2020) (“‘While a physician need not be a specialist’ in a

particular field to provide expert testimony, ‘he or she must still be a qualified

physician and have familiarity with the particular subject matter in order to render

an expert medical opinion.’” (citation omitted)). We find the example of Govan more

applicable to this case. Officer Scott Brown was undeniably a narcotics expert and

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qualified as such, and he testified to his familiarity with boot despite it being new.

We do not see a reason to depart from the trial court’s ruling where Officer Brown

was indeed qualified to speak on narcotics generally, even if that included boot.

While appellants assert that the trial court failed to properly examine the

qualifications of Officer Brown, the trial court in fact allowed defense counsel to

conduct mid-trial voir dire on Officer Brown in front of the jury. Defense counsel

had an opportunity to challenge Officer Brown’s education, training, narcotics

experience, information sources, knowledge of boot, and any other relevant

methodology or skills. At the end of that voir dire, the trial court made clear that

based on Officer Brown’s responses, he had “sufficient education and training to

testify about [the] narcotics in general.” The trial judge also stated that Officer

Brown’s experience with boot in D.C. and a neighboring county was sufficient to

qualify him. It was noted that the forensic experts, who were qualified without

objection, indicated that Mr. Wallace’s drugs were a mix of boot and cocaine, further

supporting the credibility of Officer Brown’s testimony regarding crack cocaine and

boot. With this foundation, we agree with the trial court that Officer Brown was

qualified as a narcotics expert.

After voir dire, appellants had further space to properly challenge Officer

Brown’s credibility on cross-examination. Officer Brown’s alleged inexperience

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with boot was an issue of credibility and weight that defense counsel should have

and did attack during cross examination, not an issue that should have prevented

certification. See, e.g., Govan, 228 A.3d at 155 (“[T]he trial court properly

understood [expert witness’s methodology choices] as relevant to the weight to

afford the opinion, rather than its admissibility.”); Holbrook v. Lykes Bros. S.S. Co.,

Inc., 80 F.3d 777, 782 (3d Cir. 1996) (“Because of our liberal approach to admitting

expert testimony, most arguments about an expert’s qualifications relate more to the

weight to be given the expert’s testimony than to its admissibility.”). Defense

counsel had an opportunity to discredit Officer Brown during cross examination on

his knowledge of boot, and it was then left to the jury to decide if they were

persuaded by Officer Brown’s testimony or not. We properly leave that to the jury.

While we acknowledge that Officer Brown was not a perfect expert witness

when it came to the narcotic boot, and appellants are justified in their well-delivered

critique of Officer Brown’s relevant expertise, his deficiencies were properly left to

cross-examination and the jury. This is a case-specific analysis, and we take great

care in evaluating the trial court’s decision. However, a foundation was established

for Officer Brown’s expertise in narcotics, and the trial judge articulated a basis for

admitting him; as a result, we are satisfied that this decision was not an abuse of

discretion. We affirm.

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B. The Trial Court’s Questioning of Witnesses

Next, we address Mr. Layne’s argument that the trial judge improperly

questioned witnesses at various points during trial. We normally review challenges

that a trial judge improperly questioned witnesses for abuse of discretion. Thacker

v. United States, 599 A.2d 52, 63 (D.C. 1991). However, Mr. Layne’s trial counsel

did not object to the trial judge’s questioning during trial, so on appeal the

government seeks a plain-error standard of review. In his reply brief, Mr. Layne

agrees that there was no objection at the trial court, but he nonetheless contends that

this argument was preserved and we should examine the entire trial transcript to

evaluate the trial judge’s involvement in context. Mr. Layne relies on old D.C.

Circuit caselaw to support his argument, including United States v. Barbour, 420

F.2d 1319 (D.C. Cir. 1969), and Jackson v. United States, 329 F.2d 893 (D.C. Cir.

1964). 4 We are not convinced that we must follow these cases.

4

As Mr. Layne notes, these cases predate February 1, 1971, and thus would be binding on this court unless later caselaw has instructed otherwise. See M.A.P. v. Ryan, 285 A.2d 310, 312 (D.C. 1971). “[W]e have adopted the rule that no division of this court[] will overrule a prior decision of this court[ ] or refuse to follow a decision of the United States Court of Appeals rendered prior to February 1, 1971, and that such result can only be accomplished by this court en banc.” Id.

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The D.C. Circuit, more recently than Mr. Layne’s cited cases, has made clear

that if “counsel did not object to the judge’s questions at trial, the plain-error standard

applies.” United States v. Winstead, 74 F.3d 1313, 1319 (D.C. Cir. 1996). Our court

has also consistently applied this standard. See, e.g., Hagood v. United States, 93

A.3d 210, 227 (D.C. 2014); Jennings v. United States, 989 A.2d 1106, 1114 (D.C.

2010); Lampkins v. United States, 973 A.2d 171, 172 (D.C. 2009); Long v. United

States, 940 A.2d 87, 100 (D.C. 2007); see also Keerikkattil v. United States, 313

A.3d 591, 601 (D.C. 2024) (stating that challenges not raised before the trial court

are unpreserved and thus reviewed for plain error “because the failure to raise such

arguments with the trial court deprives that court of the opportunity to remedy the

error before or during trial” (citation omitted)). We will proceed by applying the

plain-error standard to this issue. Under the plain-error standard of review, “‘[t]here

must be an error that is plain and that affects substantial rights,’ and reversal is not

appropriate ‘unless the error seriously affects the fairness, integrity or public

reputation of the judicial proceedings.’” Lampkins, 973 A.2d at 172.

“Prosecution and judgment are two separate functions in the administration of

justice; they must not merge.” Jennings, A.2d at 1115 (quoting Johnson v. United

States, 613 A.2d 888, 895 (D.C. 1992)). “A judge is permitted to ask questions of

witnesses so long as she does not assume a partisan role.” Hagood, 93 A.3d at 228.

“The judge may ‘permissibly illuminate the witness’s testimony’ so long as the

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questions asked ‘in no way jeopardized the appellant’s presumption of

innocence . . . or improperly suggested to the prosecutor tactics he had not

considered.’” Id. (quoting Johnson, 613 A.2d at 895-96).

Here, Mr. Layne cites four occurrences where the trial judge intervened by

questioning witnesses, allegedly demonstrating impartiality to the detriment of

Mr. Layne. First, the trial judge asked Sgt. Akhtar about the glare coming off the

plastic cover on the vehicle’s license plate, which was the traffic violation that led

him to stop the appellants. Second, the judge, shortly after the above questioning,

asked Sgt. Akhtar to clarify what he said when he instructed the appellants to exit

the vehicle. Third, during the direct examination of Jean-Paul Paskalis, an MPD

crime scene investigator on this case, the trial judge asked Mr. Paskalis to explain

how he typically takes and stores a buccal swab during an investigation. Finally, the

trial judge asked Officer Brown during his cross-examination to clarify why it would

be dangerous to let a buyer into a drug dealer’s car, after Officer Brown stated that

this was potentially dangerous.

We disagree with Mr. Layne that the above instances or any others at trial

were improper and denied him his right to an impartial decisionmaker. All these

instances involved simply clarifying a line of questioning that was already being

conducted, not assisting the prosecution or damaging the defense’s theories as

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Mr. Layne suggests. See Hagood, 93 A.3d at 228 (stating that the “the trial judge

was clarifying for the record demonstrations or actions performed in court pursuant

to inquiries the prosecutor had initiated”); Long, 940 A.2d at 101 (discussing how

the trial court’s questions “properly sought information to develop more fully a line

of questioning already initiated by the prosecution”). We discern no error, let alone

one that is plain. In addition, Mr. Layne agrees that some of these questions, like the

inquiry into the license plate glare, were not central to the case, so we are not

convinced his substantial rights were impacted by these inquiries. And even if there

were error, the trial judge at the start of trial and at the close of testimony instructed

the jury that any questions from the trial judge should not be construed as conveying

an opinion, and instead the jury has the task of deciding this case, further alleviating

any concern over possible prejudice. See Holloway v. United States, 25 A.3d 898,

903 (D.C. 2011) (“We ordinarily presume that the jury understands and obeys the

trial judge’s instructions.”).

Therefore, we conclude that the trial judge’s questioning of witnesses was

solely to clarify existing inquiries and was not plain error nor harmful to Mr. Layne’s

substantial rights. We affirm.

22

C. The Sufficiency of the Evidence for PWID

We now turn to Mr. Wallace’s insufficiency of the evidence argument. We

review a challenge to the sufficiency of the evidence de novo, “viewing the evidence

in the light most favorable to the [verdict], drawing all reasonable inferences in the

government’s favor, and giving deference to the jury’s right to determine credibility

and weight.” Toyer v. United States, 325 A.3d 417, 424 (D.C. 2024) (quoting

Rollerson v. United States, 127 A.3d 1220, 1232 (D.C. 2015)). Under this lens, we

then must determine whether “there was sufficient evidence from which a reasonable

mind might fairly infer guilt beyond a reasonable doubt.” Id. The government need

not negate “every possible inference of innocence,” id., but rather the appellant bears

the “heavy burden of showing that the [government] offered no evidence upon which

a reasonable mind could find guilt beyond a reasonable doubt.” Id. (quoting Bruce

v. United States, 305 A.3d 381, 392 (D.C. 2023)).

To prove PWID, the government must show that Mr. Wallace (1) knowingly

and intentionally possessed crack cocaine (2) with the specific intent to distribute.

D.C. Code § 48-904.01(a)(1); see also Toyer, 325 A.3d at 424; Kornegay v. United

States, 236 A.3d 414, 418 (D.C. 2020). “An intent to distribute can be inferred from

the possession of a quantity of drugs that ‘exceeds supply for personal use’ or that is

packaged in a manner indicative of future distribution.” Toyer, 325 A.3d at 424

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(quoting McRae v. United States, 148 A.3d 269, 273 (D.C. 2016)). Intent to

distribute can also be inferred through expert testimony. See Digsby v. United States,

981 A.2d 598, 604-05 (D.C. 2009).

Mr. Wallace states that the government’s only evidence supporting its

argument that he had the intent to distribute the crack cocaine found in his possession

was the possession itself. Mr. Wallace relies on McRae v. United States to support

his argument. In that case, this court found that there was no direct evidence that the

appellant had been selling or intended to sell the marijuana found in his possession,

thus rendering the evidence insufficient to support his PWID conviction. McRae,

148 A.3d at 273. This court noted that “expert testimony or other evidence showing

that the quantity or packaging of appellant’s marijuana was more consistent with an

intent to distribute than with personal use” was “strikingly absent.” Id.

In this case, we see several other pieces of evidence presented by the

government indicating that a reasonable person could infer an intent to distribute

beyond a reasonable doubt, namely expert testimony and other physical evidence

found during the traffic stop. The government’s expert Officer Brown testified that

the amount of crack cocaine found on Mr. Wallace far exceeded what a drug user

would buy for personal use, going so far as to say that just one of the thirteen baggies

found would likely cause an overdose if ingested entirely. See, e.g., Toyer, 325 A.3d

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at 424 (discussing officer testimony that the amount of crack cocaine found on the

appellant, “4.3 grams” with a “resale price of least $600,” was an “amount greater

than the quantity typically purchased at one time for personal use”). This is unlike

McRae, where the amount of marijuana found on the appellant was consistent with

personal use, and expert testimony to the contrary was absent. 148 A.3d at 273-74.

Officer Brown also noted that the packaging of the crack cocaine was more

consistent with distribution, another difference from McRae where the marijuana

was found in a bag consistent with personal use. Id. at 274. Thus, here we have

evidence that the quantity and packaging of the drugs indicate an intent to distribute.

The government also relied on other evidence found during the traffic stop to

support its theory of intent. Mr. Wallace was found with $405 in cash in multiple

denominations and a variety of other drugs, including small quantities of fentanyl

and PCP that were more akin to personal use; a firearm was found in the vehicle;

and Mr. Wallace was found with no drug-use paraphernalia. Officer Brown noted

that all these factors suggested the crack cocaine was for distribution rather than

personal use. See, e.g., Bruce, 305 A.3d at 392 (stating that “small denominations of

cash and the presence of [a] firearm [are] indicative of a drug-dealing operation,” as

this court has noted in our PWID caselaw). Mr. Wallace again challenges the

credibility of Officer Brown, but we stated above that the trial court did not err in

certifying Officer Brown as an expert; and even if it had, we consider all evidence

25

admitted at trial during a sufficiency of the evidence review, even erroneously

admitted evidence. See Ransom v. United States, 322 A.3d 521, 527 (D.C. 2024).

Thus, under our sufficiency standard of review, we must defer to the jury’s

credibility determination on Officer Brown’s PWID testimony versus the defense’s

expert testimony, and we see no reason to undermine that authority here.

We see sufficient evidence in the record to establish Mr. Wallace’s intent to

distribute crack cocaine. Mr. Wallace has not carried his burden of showing that

there was no evidence upon which a reasonable mind could find him guilty beyond

a reasonable doubt of PWID crack cocaine. We affirm.

III. Conclusion

For the foregoing reasons, the judgment of the trial court is affirmed.

So ordered.

DEAHL, Associate Judge, concurring in the judgment in part and dissenting in

part: I agree with my colleagues on their resolution of the issues that the opinion for

the court addresses. But I respectfully dissent, in part, because of an issue they have

chosen not to reach: whether there was sufficient evidence to sustain Antoine

Layne’s convictions for possession with intent to distribute and possession of a

26

firearm during a crime of violence or other dangerous offense, with the intent to

distribute being a predicate of the latter charge. In my view, the evidence was

insufficient to sustain Layne’s convictions for those offenses because it did not come

particularly close to establishing, beyond a reasonable doubt, that Layne had the

intent to distribute the modest amount of drugs found on him. And I do not share my

colleagues’ view that we should bypass that issue because Layne raised it only

belatedly, and seemingly in response to questions posed at oral argument. See

Wallace v. United States, 351 A.3d 1, 6-14 (D.C. 2026) (Deahl, J., dissenting).

I have already thoroughly expressed my views on this matter in my dissent

from the court’s denial of Layne’s request to brief his sufficiency argument in the

days after this case was argued and submitted. Id. I offer this epilogue only because,

in that earlier procedural posture, I did not express a firm view on the merits of

Layne’s sufficiency argument, given that Layne was simply seeking to brief the

matter, and I thought we should have let him do that. With that ship having sailed, I

now more firmly conclude that the evidence was insufficient to sustain these

convictions.

I will not comprehensively rehash the many reasons I previously laid out for

doubting the sufficiency of the evidence to sustain the most serious of Layne’s

convictions. Id. at 7-9. I will instead offer a more abbreviated accounting: Layne is

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serving a 17.5-year prison sentence, and ten of those years are attributable to the

jury’s conclusion that Layne had the “intent to distribute” the dimethylpentylone, or

“boot,” that Layne had on him. I do not see how any rational factfinder could

conclude beyond a reasonable doubt that Layne intended to distribute the moderate

quantity of boot he had on him.

Layne had just seven grams, or about $200 worth of boot. The boot was not

packaged or broken down in a way suggestive of an intent to sell it—to the contrary,

it was in two small rocks, which even the government’s own expert said was more

consistent with personal use than an intent to distribute. The quantity of boot was

not particularly suggestive of an intent to distribute either. While the government’s

expert opined that seven grams was more consistent with an intent to distribute, his

basis for that opinion was facially ludicrous: he posited that “[y]ou would kill

yourself” if you smoked either of the two rocks at once. But that’s like saying that a

handle of bourbon, or a few bottles of wine, are “more consistent with” an intent to

distribute alcohol than possession of it for personal use, because imbibing those

quantities in one sitting could kill you. The glaring hole in that logic is that plenty of

people possess intoxicating substances for personal use in quantities that they do not

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intend to ingest in a single sitting, and could not safely ingest in one sitting. 1 There

is just a chasm between the two things. And in any event, even if that quantity of

boot were “more consistent” with an intent to distribute, that is a far cry from proof

beyond a reasonable doubt that the boot was marked for distribution.

Also, consider that (1) Layne was not in any open air drug market or seen in

any hand-to-hand exchanges—he was simply riding as a backseat passenger in a car

that was pulled over in a routine traffic stop; (2) there was no evidence that Layne

even had the tools necessary to break the boot down for individual sales, i.e., the

government had no evidence that Layne had any little baggies, cutting implements,

or digital scales—the types of things we often stress as indicative of an intent to

distribute, see, e.g., Buchanan v. United States, 165 A.3d 297, 303 (D.C. 2017)

(highlighting detective testimony about how “the scale, nail file, small zip-lock bags,

and other items found [on the defendant] are tools commonly used to separate and

package drugs for distribution.”); and (3) there was no evidence that Layne had sent

or received any messages suggesting that he was engaged in the drug trade, despite

the government’s clear incentive to procure a search warrant for his phone if it

actually believed he was a drug dealer. In short, the government apparently chose

1

If the government expert’s view was that drug users never procure drugs for the days and weeks ahead, as he at some points suggested, then that is also a ludicrous claim that I do not think any rational factfinder could believe.

29

not to investigate its case—or its investigation came up empty—and Layne is now

serving a decade in prison on charges that the government did not come particularly

close to proving beyond a reasonable doubt. The evidence here was far flimsier than

any possession with intent to distribute conviction that this court has previously

upheld. See Wallace, 351 A.3d at 9 (Deahl, J., dissenting). It was also far flimsier

than the evidence against Wallace—and while I agree with the court that the

evidence was sufficient to uphold Wallace’s distribution conviction, largely because

of the packaging and higher quantity of drugs on him, I view that as a considerably

closer call than the opinion for the court makes it out to be. 2

I note two final aspects of this case that trouble me: First, as I have previously

detailed, and since we have now issued an opinion, Layne is now free to raise this

same sufficiency argument that my colleagues have opted not to address in the

context of an ineffective assistance of appellate counsel claim. Id. at 12. So the claim

is surely coming before this panel regardless, and I continue to believe that we have

not advanced or protected any salient values by delaying the consideration of that

claim.

It is for that reason that I concur only in the judgment as to the issues where

2

I agree with the court’s bottom-line judgment.

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Second, while the government has steadfastly opposed Layne’s attempts to

belatedly raise this argument, it is worth noting that even if the challenged

convictions were reversed, Layne would still be serving a longer sentence than the

government recommended at sentencing. That is, while the government

recommended a six-year sentence be imposed for all of Layne’s convictions, the trial

court imposed a 17.5-year sentence, and ten of those years hinge on whether Layne

had an intent to distribute. Subtract that decade from Layne’s sentence, and he will

still be serving a sentence that is a year-and-a-half longer than what the government

once thought was fitting. So it is strange to me that the U.S. Attorney’s Office in this

case—whose members are often quick to remind us that their “interest in a criminal

prosecution is not that [they] shall win a case, but that justice shall be done,” Vaughn

v. United States, 93 A.3d 1237, 1253 (D.C. 2014) (quoting Berger v. United States,

295 U.S. 78, 88 (1935))—has so staunchly opposed review of Layne’s claim that he

is legally innocent. I would think, under the circumstances, that they would welcome

that review, as they have done on so many past occasions when similar claims were

belatedly raised. See, e.g., Walker v. United States, 982 A.2d 723, 738 (D.C. 2009)

(reversing defendant’s convictions even though he did not raise a sufficiency

challenge because the government “concede[d]” that his co-defendant’s conviction

“must be vacated for failure of proof”); Jennings v. United States, 431 A.2d 552,

555 n.3 (D.C. 1981) (reversing convictions of three defendants even though only one

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raised a sufficiency challenge because “the government, in its brief, concedes that it

failed to produce sufficient evidence”); Gilliam v. United States, 80 A.3d 192,

205-06 (D.C. 2013) (deeming it “in the interests of justice to reverse [defendant’s]

convictions along with those” of co-defendants even though defendant failed to brief

dispositive issue because the government did not “defend the trial court’s ruling on

appeal”).

For those reasons, I would reverse Layne’s convictions for possession with

intent to distribute a controlled substance and for possession of a firearm during a

crime of violence. And I therefore respectfully dissent from the court’s decision to

affirm those convictions.