Check how courts have cited this case. Use our free citator for the most current treatment.
No. 10287863
United States Court of Appeals for the Ninth Circuit
United States v. Dominic Dorsey
No. 10287863 · Decided December 4, 2024
No. 10287863·Ninth Circuit · 2024·
FlawFinder last updated this page Apr. 2, 2026
Case Details
Court
United States Court of Appeals for the Ninth Circuit
Decided
December 4, 2024
Citation
No. 10287863
Disposition
See opinion text.
Full Opinion
FOR PUBLICATION
UNITED STATES COURT OF APPEALS
FOR THE NINTH CIRCUIT
UNITED STATES OF AMERICA, No. 19-50182
Plaintiff-Appellee, D.C. No.
2:14-cr-00328-
v. CAS-1
DOMINIC DORSEY, AKA Boo,
AKA Boogaloo, AKA Dominic OPINION
Cavanaughn Dorsey,
Defendant-Appellant.
Appeal from the United States District Court
for the Central District of California
Christina A. Snyder, District Judge, Presiding
Argued and Submitted May 15, 2024
Pasadena, California
Filed December 4, 2024
Before: Daniel P. Collins, Holly A. Thomas, and Anthony
D. Johnstone, Circuit Judges.
Opinion by Judge Johnstone;
Concurrence by Judge Collins
2 USA V. DORSEY
SUMMARY *
Criminal Law
The panel affirmed Dominic Dorsey’s conviction for
multiple federal crimes arising from a spree of robberies
committed by two disguised men.
The evidence at trial included video from security
cameras that recorded the robberies. A police detective
testified, as a lay witness, about his out-of-court review of
the surveillance video. Under Federal Rule of Evidence 701,
a lay witness may offer testimony in the form of an opinion
if it is “helpful . . . to determining a fact in issue.”
Based on his close and repeated out-of-court review, the
detective opined on details in the video that the jury may
otherwise have missed. The panel held that such lay opinion
testimony is admissible because the witness’s out-of-court
review of the video adds value beyond simply playing the
video to the jury and may be helpful “to determining a fact
in issue.” Fed. R. Evidence. 701(b).
The detective also opined, based on his own comparison
of those details that were in evidence before the jury, that the
disguised robbers shown on the surveillance video were
Dorsey and his codefendant, Reginald Bailey. When a
witness identifies an unknown person in an image, that
opinion is not “helpful” under Rule 701 unless the witness
has some personal knowledge or experience that supports a
more informed identification than the jury can make on its
*
This summary constitutes no part of the opinion of the court. It has
been prepared by court staff for the convenience of the reader.
USA V. DORSEY 3
own. The panel held that the detective’s opinion testimony
identifying Dorsey and Bailey as the disguised robbers was
not “helpful” under Rule 701 because the detective testified
based on evidence already in front of the jury, without the
requisite personal knowledge or experience. The district
court therefore abused its discretion by allowing the
testimony.
The panel held that the admissible evidence at trial and
the district court’s instructions rendered the inadmissible
testimony harmless.
The panel addressed Dorsey’s additional bases for
appeal in a concurrently filed memorandum disposition.
Judge Collins concurred in the judgment. He wrote that
he has substantial doubt that the majority is correct in
holding that the district court abused its discretion in
allowing the detective’s challenged testimony, but
concluded that any error that may have occurred on that
score was more likely than not harmless.
COUNSEL
Suria M. Bahadue (argued) and David R. Friedman,
Assistant United States Attorneys, Criminal Appeals
Section; Bram M. Alden, Assistant United States Attorney,
Chief, Criminal Appeals Section; Justin R. Rhoades and
Joseph D. Axelrad, Assistant United States Attorneys; E.
Martin Estrada, United States Attorney; United States
Department of Justice, Office of the United States Attorney,
Los Angeles, California; Jeffrey M. Chemerinsky, Kendall
Brill & Kelly LLP, Los Angeles, California; for Plaintiff-
Appellee.
4 USA V. DORSEY
Michael Tanaka (argued), Law Office of Michael Tanaka,
Los Angeles, California, for Defendant-Appellant.
OPINION
JOHNSTONE, Circuit Judge:
A jury convicted Dominic Dorsey of multiple federal
crimes arising from a spree of robberies committed by two
disguised men. The evidence at trial included video from
security cameras that recorded the robberies. A police
detective testified, as a lay witness, about his out-of-court
review of the surveillance video. Based on his review, the
detective opined on details in the video that the jury may
otherwise have missed. The detective also opined, based on
his own comparison of those details that were in evidence
before the jury, that the disguised robbers shown on the
surveillance video were Dorsey and his codefendant,
Reginald Bailey.
Under Federal Rule of Evidence 701, a lay witness may
offer testimony in the form of an opinion only if it is
“helpful . . . to determining a fact in issue.” Fed. R. Evid.
701(b). But when a witness identifies an unknown person in
an image, that opinion is not “helpful” under Rule 701 unless
the witness has some personal knowledge or experience that
supports a more informed identification than the jury can
make on its own. The detective opined that the disguised
robbers were Dorsey and Bailey without having that
personal knowledge or experience. Thus, his identification
opinions were not helpful and should not have been
admitted. But the district court’s error in allowing the
testimony was harmless, and Dorsey’s additional bases for
USA V. DORSEY 5
appeal lack merit. 1 We have jurisdiction under 28 U.S.C.
§ 1291, and we affirm.
I. Dorsey was tried and convicted for a series of
robberies.
In the fall of 2013, two disguised men robbed a series of
gas stations in the Los Angeles area. The robbers would
enter a store, brandish a “cowboy-style” revolver, and
demand that employees give up the contents of the cash
register. They wore dark clothing, gloves, and hooded
sweatshirts. The taller robber wore a black ski mask; the
shorter robber placed a blue bandana over his face. After
targeting gas stations for two months, the men ended their
spree of armed robberies at a bank, where they made off with
more than $55,000.
Dorsey came to the attention of law enforcement based
on the robbers’ frequent use of a dark-colored sedan. A
witness reported seeing a black Nissan Altima with a license
plate ending in “435” parked in an unusual location by one
of the gas stations on the night it was robbed. Detective
Christopher Marsden, an investigator with the Los Angeles
Police Department, identified a car matching this
description. Further investigation showed that the car
belonged to Dorsey’s girlfriend and that Dorsey was driving
the vehicle around the time that the robberies took place.
Although security cameras recorded each of the robberies,
the robbers’ disguises prevented law enforcement from
identifying them from the video, so they relied on other
evidence to make the initial identification.
1
Dorsey raised two other bases for appeal in his opening brief which we
have addressed in a separate memorandum disposition filed concurrently
with this opinion.
6 USA V. DORSEY
Over the next few months, investigators discovered
further evidence connecting Dorsey to the robberies and to a
second suspect, Reginald Bailey. Law enforcement arrested
Dorsey and Bailey in June 2014, and the trial at which they
were convicted began in July 2016. At trial, Detective
Marsden offered a wide range of lay opinions about the steps
he took during his investigation and various conclusions that
he reached. The detective also opined about the contents of
the surveillance video of the robberies, which was admitted
in evidence.
Detective Marsden offered two types of opinions about
the surveillance video, which he had pored over before trial.
First, he opined about details that the jury might otherwise
have missed, such as the markings on the robbers’ shoes.
These opinions were grounded in the video itself and the
detective’s thorough out-of-court review of that video. The
district court admitted this narrative testimony under Rule
701. Second, Detective Marsden opined that the disguised
robbers shown in the surveillance video were Dorsey and
Bailey. These identification opinions rested on evidence
already in front the jury: still images of the robbers and of
Dorsey and Bailey, and the detective’s own comparison of
the details in those images. The district court also admitted
this identification testimony under Rule 701, despite
objections from the defense.
After eight days of trial, the jury returned guilty verdicts
on all charges against both Dorsey and Bailey. The district
court sentenced Dorsey to a term of imprisonment of 40
years. Dorsey timely appealed. Where, as here, the district
court has admitted testimony over an objection, we review
the district court’s decision for abuse of discretion, and its
interpretation of the Federal Rules of Evidence de novo.
United States v. Waters, 627 F.3d 345, 351 (9th Cir. 2010).
USA V. DORSEY 7
II. The detective’s identification opinions were
inadmissible under Federal Rule of Evidence 701.
Before Rule 701, courts distinguished between
admissible fact testimony and inadmissible opinion
testimony. United States v. Gadson, 763 F.3d 1189, 1206
(9th Cir. 2014) (noting the “then-prevailing evidentiary
principles” which limited lay witness testimony to factual
observations). Non-expert or “lay” witnesses were typically
barred from presenting opinion testimony on the grounds
that it “would mislead juries.” Id. Rule 701 rejected these
rationales and liberalized the admission of lay opinion
testimony. Id. Rule 701 permits a witness to offer lay
opinions that are “rationally based on the witness’s
perception.” Fed. R. Evid. 701(a); see also Fed. R. Evid. 602
(requiring a lay witness to have “personal knowledge of the
matter” testified to unless it is expert testimony). The
opinions must also be “helpful” to the jury in “clearly
understanding the witness’s testimony” or “determining a
fact in issue.” Fed. R. Evid 701(b). And they must be based
on the witness’s personal knowledge or experience, rather
than the “specialized” knowledge of an expert. Fed. R. Evid.
701(c). Subject to these limitations, a wide range of lay
opinion testimony—including by law enforcement officers
in a criminal trial—is admissible under Rule 701. See
Gadson, 763 F.3d at 1206–09 (describing the scope of
admissible testimony under Rule 701).
Although much of Detective Marsden’s lay opinion
testimony was properly admitted, the district court erred by
allowing the detective to opine that Dorsey and Bailey were
the disguised robbers. These identification opinions were
based on his assessment of still images from the robberies
and pictures of Dorsey and Bailey that were in evidence
before the jury. They did not meet “Rule 701’s requirement
8 USA V. DORSEY
of helpfulness,” because the detective was not “more likely
to identify correctly the [robbers] than [was] the jury.”
United States v. LaPierre, 998 F.2d 1460, 1465 (9th Cir.
1993). Instead, the detective merely “spoon-fed his
interpretations” of the evidence to the jury. Gadson, 763
F.3d at 1208 (quoting United States v. Freeman, 730 F.3d
590, 597 (6th Cir. 2013)). Thus, the identification opinions
should have been excluded.
A. Detective Marsden’s narrative testimony about
details appearing in the surveillance video of the
robberies was admissible.
Law enforcement officers often testify in criminal trials
about video footage. When a law enforcement officer points
out particulars in a video that are based on a close and
repeated out-of-court review and that a casual observer
would likely miss, the testimony is lay opinion because the
officer is contributing to the jury’s in-court perception of the
video. See United States v. Torralba-Mendia, 784 F.3d 652,
659 (9th Cir. 2015). Such lay opinion is admissible because
a juror, without the benefit of the officer’s thorough review,
might overlook the details highlighted by the officer’s
testimony. Thus, the officer’s out-of-court review of the
video adds value beyond simply playing the video to the jury
and may be helpful “to determining a fact in issue.” Fed. R.
Evid. 701(b).
In both United States v. Begay and Torralba-Mendia, we
explained that where a witness had watched video many
times, the witness’s narrative description of it was helpful
because the witness could point out details that a casual
observer was likely to miss. See 42 F.3d 486, 502–03 (9th
Cir. 1994); Torralba-Mendia, 784 F.3d at 659–661. In
Begay, the video at issue captured a chaotic and complex
USA V. DORSEY 9
mass demonstration, and we determined that a person
“viewing a videotape of a demonstration involving over 200
people would likely not see certain details.” 42 F.3d at 503.
Because the testifying officer had viewed the original
videotape “over 100 times,” as well as “about 800
photographs” from the demonstration, he was allowed to
create and narrate an enhanced video exhibit at trial. Id. at
502. We held that this was admissible lay opinion testimony.
Id.
We reiterated this holding in Torralba-Mendia. There, a
series of surveillance tapes recorded over several days
showed cars “arriving and departing” from surveilled
locations. Id. at 659. The testifying officer had “watched
each video roughly fifty times.” Id. The court permitted the
officer to opine about “unique characteristics of the
vehicles,” point out “the length of time lapses between video
clips,” and highlight details like “the particular clothing of
certain passengers.” Id. at 559–60. We held that this
testimony was “helpful” to the jury in “determining a fact in
issue,” Fed. R. Evid. 701(b), because it “helped the jury
understand the import of the videos,” id. at 660.
Detective Marsden took the witness stand on the third
day of trial. The detective, who was not qualified as an expert
witness, opined about the entire scope of his investigation
into the so-called “Cowboy Gun Bandits.” His testimony ran
from his initial insights into the methods of the unknown
robbers to the eventual arrest and post-arrest interview of
Dorsey. Much of the detective’s testimony described
surveillance video of the robberies. Detective Marsden
highlighted visible features of the disguised robbers: the
taller robber consistently wore a pair of gray sneakers with
silver eyelets, separated from a white sole by a black line;
the shorter robber often wore gray or dirty white sneakers,
10 USA V. DORSEY
and a frame-by-frame review of the video revealed that he
had glasses, was bald, and was missing a finger on his left
hand.
As in Begay and Torralba-Mendia, Detective Marsden’s
narrative testimony was an opinion because he drew on his
extensive out-of-court review of the surveillance video in
contributing to the jury’s perceptions of that evidence. This
thorough review allowed him to highlight salient, but minor,
details that the jury might otherwise have missed. In turn, his
testimony helped the jury to “discern correctly and
efficiently” those details. Begay, 42 F.3d at 503. It was
therefore properly admitted under Rule 701. See id.;
Torralba-Mendia, 784 F.3d at 659–60.
B. Detective Marsden’s testimony identifying
Dorsey and Bailey as the disguised robbers was
inadmissible.
Much of Detective Marsden’s testimony about his
observations was properly admitted, including his narrative
testimony about the details of the surveillance video. But he
also made several forays into improper identification
throughout his three days of testimony. On appeal, Dorsey
directs his challenge to this testimony.
A witness may, with sufficient background knowledge
of a person, offer a lay opinion identifying that person in an
image subject to the limits of Rule 701. Such an
identification may be admissible opinion testimony when it
evaluates evidence before the jury by contributing to that
evidence the witness’s personal knowledge that the jury
lacks. See United States v. Henderson, 68 F.3d 323, 326–27
(9th Cir. 1995) (explaining that an officer had “substantial
knowledge” about the defendant’s appearance that “the jury
was unable to see”); Gadson, 763 F.3d at 1208 (explaining
USA V. DORSEY 11
that lay opinion testimony connects the evidence before the
jury to “the witness’s own understanding, including a wealth
of personal information, experience, and education”). Such
testimony is “helpful . . . to determining a fact in issue,” Fed.
R. Evid. 701(b), when the witness’s personal knowledge
means that “the witness is more likely to identify correctly
the person than is the jury.” LaPierre, 998 F.2d at 1465.
Whether a lay witness’s identification opinion is
“helpful” to the jury under Rule 701 depends on the totality
of the circumstances. United States v. Beck, 418 F.3d 1008,
1015 (9th Cir. 2005). We have previously recognized two
situations in which an identification opinion has met “Rule
701’s requirement of helpfulness.” LaPierre, 998 F.2d at
1465. An identification opinion may be helpful, and
therefore admissible, where “the witness has had substantial
and sustained contact” with the defendant; or where “the
defendant’s appearance in the photograph is different from
his appearance before the jury and the witness is familiar
with the defendant as he appears in the photograph.” Id.
(collecting cases); see also Beck, 418 F.3d at 1015. Even so,
we have explained that this kind of identification testimony
is of “dubious value,” especially when provided by a law
enforcement officer, because it can create unfair prejudice
and discourage jurors from drawing their own conclusions.
LaPierre, 998 F.2d at 1465; see also United States v.
Butcher, 557 F.2d 666, 670 (9th Cir. 1977) (cautioning that
“lay opinion identification by [law enforcement] is not to be
encouraged”).
1. Detective Marsden’s testimony identified Dorsey
and Bailey as the disguised robbers.
After Detective Marsden highlighted the robbers’
sneakers and other details in his narrative testimony about
12 USA V. DORSEY
the surveillance video, he went further to opine that his
review of the video and images led him to identify Dorsey
as the taller robber. Detective Marsden addressed two
images that had been placed side-by-side before the jury.
One showed the disguised robbers. The other showed
Dorsey. Referring to the picture of the disguised robbers,
Detective Marsden testified that the taller robber wore the
“same sneakers” during every robbery. Then, turning to the
picture of Dorsey, the detective testified that Dorsey was
wearing the “same sneakers” as the taller robber. Finally,
Detective Marsden testified that his assessment of the
totality of the video—especially his conclusion that the taller
robber and Dorsey wore the same sneakers—led him “to
believe that Dominic Dorsey was the taller suspect.” Thus,
Detective Marsden’s opinion testimony identified Dorsey
based on surveillance video and still photos, evidence
already in front of the jury.
As to the shorter robber, Detective Marsden’s narrative
testimony had specified that the suspect was bald, with
glasses, dirty white sneakers, and a missing finger on his left
hand. But, as with his testimony about Dorsey, Detective
Marsden went even further and opined that his review of the
video and images led him to identify Bailey as the shorter
robber. For instance, the prosecution pulled up three pictures
of the shorter robber taken from surveillance video at one of
the gas stations. These three pictures were juxtaposed
against a fourth, this one showing Bailey at another time and
place. The prosecution elicited the detective’s opinion,
asking him to explain how the pictures “play[ed] a part in
[his] investigation.” Detective Marsden opined that he had
identified Bailey as the shorter robber because Bailey, like
the shorter suspect, was “bald and wearing glasses and
USA V. DORSEY 13
wearing the white shoes.” Once again, this opinion identified
Bailey based on evidence already in front of the jury.
2. Detective Marsden’s identification opinions
were inadmissible.
Detective Marsden’s lay opinions identifying Dorsey
and Bailey as the disguised robbers were “unhelpful” and
therefore inadmissible under Rule 701 because that
testimony did not provide reason to believe that Detective
Marsden was more likely to identify correctly the robbers
than was the jury. See LaPierre, 998 F.2d at 1465. The
detective did not identify the disguised robbers based on his
“sustained contact” with Dorsey and Bailey, LaPierre, 998
F.2d at 1465, nor any other personal knowledge about their
appearance that the jury lacked, Henderson, 68 F.3d at 326–
27. Detective Marsden served as the “lead investigator” of
the crimes, and in that capacity testified to tracking down
Dorsey through phone and vehicle records as well as
unsuccessful attempts to follow his car. But these
investigative steps focused on Dorsey’s identity on paper.
They did not provide the detective with personal knowledge
of Dorsey’s appearance, the basis of the detective’s
identification opinion.
Although Detective Marsden had arrested Dorsey, and
interviewed him post-arrest, he did not testify that this
limited personal contact helped him identify Dorsey as the
taller suspect in the video. The government also relied on
driver’s licenses and booking photos, not the detective’s
personal recollection, to establish Bailey’s appearance at the
time of the crimes. While “we have not provided clear
guidance as to the extent of contact sufficient to render lay
opinion testimony rationally based and helpful to the jury,”
Beck, 418 F.3d at 1014, our “case-by-case approach” has
14 USA V. DORSEY
relied on multiple contacts over a long time to establish
“sufficient contact” to support personal knowledge of
identity, id. at 1015 n.4 (collecting cases). Instead, after
comparing the images of the disguised robbers to images of
Dorsey and Bailey, the detective opined about the identities
of the robbers without the benefit of such personal
knowledge. He did so based only on his own belief that there
were enough similarities to say the same features, even the
same people, were visible in both sets of images.
These identification opinions were based on the
surveillance video, still images, and the detective’s extensive
review of that evidence. But the jury had access to all the
same evidence and, through the detective’s narrative
testimony, the jury had been directed to important details of
that evidence they might otherwise have missed. The
detective’s additional identification opinions, therefore, did
not “offer[] to the jury ‘a perspective it could not acquire in
its limited exposure’ to the defendant.” Beck, 418 F.3d at
1015 (quoting United States v. Allen, 787 F.2d 933, 936 (4th
Cir. 1986), vacated on other grounds, 479 U.S. 1077
(1987)). Thus, the identity of the disguised robbers “was a
determination properly left to the jury.” LaPierre, 998 F.2d
at 1465.
These restrictions on the admissibility of identification
opinions reflect a basic limitation on the scope of testimony
admissible as lay opinion. Rule 701 reduced courts’ reliance
on the slippery distinction between admissible factual
testimony and inadmissible opinion testimony. See Gadson,
763 F.3d at 1206 (“[T]he distinction between ‘fact’ and
‘opinion’ proved to be unworkable in practice.”). But the
rule does not allow non-expert witnesses to offer conclusory
opinions “which amount to little more than choosing up
sides.” Id. at 1208 (quoting Fed. R. Evid. 701 advisory
USA V. DORSEY 15
committee’s notes). When a witness opines about an issue
“within the common knowledge of the jury” based on
evidence already in front of the jury, the opinion is unhelpful
because the witness has “essentially ‘spoon-fed his
interpretations of the [evidence] to the jury.’” Id. at 1207–08
(quoting Freeman, 730 F.3d at 597); see also United States
v. Earls, 704 F.3d 466, 472 (7th Cir. 2012) (citing LaPierre
for the conclusion that “[o]ur sister circuits have consistently
held that Rule 701 does not extend so far as to allow a
witness to serve as the thirteenth juror and compare two
pieces of evidence that are already available to the jury”).
Here, the detective’s identification opinions raised exactly
these concerns: weighing evidence already in front of the
jury, choosing a side, and spoon-feeding that conclusion to
the jury. 2 The admission of the detective’s identification
opinions thus was improper under Rule 701.
C. The district court’s error was harmless.
“For errors that are not of constitutional magnitude, the
government must show that the prejudice resulting from the
2
We disagree with the government’s assertion that vigorous cross-
examination could safeguard against the issues with Detective
Marsden’s testimony. Cross-examination may, in some cases, address
the concern that opinion testimony could “mislead juries.” Gadson, 763
F.3d at 1206; see also Beck, 418 F.3d at 1015 (“[C]ross-examination
exists to highlight potential weaknesses in lay opinion testimony.”). But
cross-examination is unlikely to be effective where, as here, the
detective’s identification opinions—based on the officer’s assessment of
evidence that the jury was equally competent to assess—borrows
credibility from other testimony reflecting the detective’s role as the
“lead investigator” into the crimes. See LaPierre, 998 F.2d at 1465
(“[L]ay opinion identification by policemen or parole officers is not to
be encouraged, and should be used only if no other adequate
identification testimony is available to the prosecution.” (quoting
Butcher, 557 F.2d at 670)).
16 USA V. DORSEY
error was more probably harmless than not.” United States
v. Freeman, 498 F.3d 893, 905 (9th Cir. 2007) (citing United
States v. Mett, 178 F.3d 1058, 1066 (9th Cir. 1999)); see also
28 U.S.C. § 2111. We conclude that the admission of the
detective’s improper identification testimony, “when viewed
in the context of the entirety of [the detective’s] testimony
and other evidence offered by the [G]overnment,” was
harmless. Freeman, 498 F.3d at 905.
Here, “the evidence as a whole” provides a “fair
assurance that the jury was not substantially swayed by the
error.” Gadson, 763 F.3d at 1208 (quoting Freeman, 498
F.3d at 905). The evidence at trial established that Dorsey
drove a black Nissan Altima with a license plate ending in
“435” around the time of the robberies, and a witness
reported seeing a car of the same description near one of the
gas stations on the night it was robbed. A video recording
from another of the gas station crime scenes showed Dorsey,
undisguised, paying for fuel in cash. Minutes later, the
shorter, bandana-wearing robber entered, brandished the
cowboy-style revolver, and robbed the cash register. Cell
records also showed that Dorsey and Bailey often
communicated with one another before and after, but never
during, the robberies. Rental car records revealed that Bailey
rented a Nissan Versa the week of the bank robbery, and a
911 caller reported that the robbers used a silver Nissan
Versa as their getaway vehicle.
Even when Detective Marsden discussed the
surveillance video of the robberies, most of his narrative
testimony was admissible, and the video itself was properly
admitted into evidence. See United States v. Rodriguez, 971
F.3d 1005, 1020 (9th Cir. 2020) (finding that the erroneously
admitted testimony was harmless when it played a small role
in the trial and most of the officers’ testimony was
USA V. DORSEY 17
admissible under the Federal Rules of Evidence). The
district court also mitigated the prejudice resulting from the
inadmissible testimony with repeated admonitions to the
jury that questions of fact—including the identity of the
disguised robbers—were to be answered by the jury.
Given this overwhelming evidence, and the precautions
the district court took to limit the effect of the improper
identification opinions, we conclude that the Government
met its burden to prove that “the error was more probably
harmless than not.” 3 Freeman, 498 F.3d at 905.
III. Conclusion
We affirm Dorsey’s conviction. The district court abused
its discretion by allowing the prosecution to introduce lay
identification opinions inadmissible under Rule 701. Lay
identification opinions are “helpful” to the jury in
“determining a fact in issue” only in limited circumstances.
Fed. R. Evid. 701; see, e.g., LaPierre, 998 F.2d at 1465
(explaining the contexts in which such testimony has been
held admissible). And we have explained that Rule 701 does
3
Before the trial at which Dorsey and Bailey were convicted, a previous
trial had ended in a mistrial because of a deadlocked jury. Dorsey argues
that we can infer the detective’s improper identification opinions were
crucial to his conviction because they were not presented at the first trial
but were presented at the second. Even if we begin with that
presumption, however, multiple aspects of the charges, trial strategy, and
evidence changed from the first trial to the second. And, as we have
discussed, the evidence admitted at the second trial is more than adequate
to assure us “that the jury was not substantially swayed by the error.”
Gadson, 763 F.3d at 1208 (quoting Freeman, 498 F.3d at 905). Finally,
unlike in United States v. Marsh, to which Dorsey directs us, the
evidentiary error here was not a constitutional error, and so we need not
determine that “the error was harmless beyond a reasonable doubt.” 144
F.3d 1229, 1240–41 (9th Cir. 1998).
18 USA V. DORSEY
not permit witnesses to spoon-feed their interpretations of
the evidence to the jury. See Gadson, 763 F.3d at 1208. But
here, that is exactly what the detective accomplished through
his improper identification opinions. His opinion testimony
identifying Dorsey and Bailey was not “helpful” within the
meaning of Rule 701 and should have been excluded. We
affirm only because the admissible evidence at trial and the
district court’s instructions rendered the inadmissible
testimony harmless.
AFFIRMED.
COLLINS, Circuit Judge, concurring in the judgment:
I have substantial doubt that the majority is correct in
holding that the district court abused its discretion in
allowing the testimony of Detective Christopher Marsden
that Defendant-Appellant Dominic Dorsey challenges on
appeal. But I need not decide that issue, because, for
substantially the reasons stated in section II(C) of the
majority opinion, any error that may have occurred on that
score was more likely than not harmless. On that basis, I
concur in the court’s judgment affirming Dorsey’s
conviction.
Plain English Summary
FOR PUBLICATION UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT UNITED STATES OF AMERICA, No.
Key Points
01FOR PUBLICATION UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT UNITED STATES OF AMERICA, No.