PUBLISHED
UNITED STATES COURT OF APPEALS
FOR THE FOURTH CIRCUIT
UNITED STATES OF AMERICA,
Plaintiff-Appellee,
v. No. 06-5009
KEVIN TYRELLE SUMMERS,
Defendant-Appellant.
Appeal from the United States District Court
for the District of Maryland, at Greenbelt.
Peter J. Messitte, Senior District Judge.
(8:05-cr-00101-PJM)
Argued: September 23, 2011
Decided: December 16, 2011
Before KING, SHEDD, and FLOYD, Circuit Judges.
Affirmed by published opinion. Judge King wrote the opin-
ion, in which Judge Shedd joined. Judge Floyd wrote an opin-
ion concurring in the judgment.
2 UNITED STATES v. SUMMERS
COUNSEL
ARGUED: Lauren Elizabeth Case, OFFICE OF THE FED-
ERAL PUBLIC DEFENDER, Greenbelt, Maryland, for
Appellant. Sujit Raman, OFFICE OF THE UNITED STATES
ATTORNEY, Baltimore, Maryland, for Appellee. ON
BRIEF: James Wyda, Federal Public Defender, Denise C.
Barrett, Assistant Federal Public Defender, OFFICE OF THE
FEDERAL PUBLIC DEFENDER, Baltimore, Maryland, for
Appellant. Rod J. Rosenstein, United States Attorney, Bryan
M. Giblin, Assistant United States Attorney, OFFICE OF
THE UNITED STATES ATTORNEY, Baltimore, Maryland,
for Appellee.
OPINION
KING, Circuit Judge:
Kevin Tyrelle Summers appeals his drug trafficking and
firearm convictions, entered in the District of Maryland in
accordance with the jury’s verdict. Summers contends that the
district court erroneously admitted into evidence a jacket
recovered from the vicinity of his arrest. He asserts further
that the court compounded its error by declining to exclude,
on Confrontation Clause grounds, expert evidence concerning
DNA testing performed on the jacket, together with evidence
documenting the jacket’s handling and custody during the
testing process. Discerning no reversible error, we affirm.
I.
During the evening of November 18, 2004, Summers,
wearing a black North Face-branded jacket, stood with
another man near the corner of Glacier Avenue and Fable
Street in Capitol Heights, Maryland. Corporal Patrick Hamp-
son, a uniformed detective with the Prince George’s County
UNITED STATES v. SUMMERS 3
Police Department, emerged from his cruiser to ask the pair
about an exchange of gunfire that had occurred shortly before
at the intersection. Both men fled, with Summers sprinting
down Glacier Avenue past undercover detectives Chad Schm-
ick and Kevin Morris, who were parked at the curb. Summers
detoured through a couple of backyards on Kayak Avenue
before surrendering to Morris. By then, however, Summers
was no longer wearing the jacket.
Hampson and Schmick found a black North Face jacket
atop one of the houses along Summers’s flight path. Hampson
placed the jacket and its contents — a Hi-Point Model C 9mm
handgun, eleven rounds of ammunition unloaded from the
pistol’s clip, and a large packet containing more than ninety
grams of crack cocaine — inside separate evidence bags for
transport in his cruiser. Hampson filled out property receipts
on the items to catalog them and to direct forensic examina-
tion.
On March 7, 2005, Summers was indicted for possession
with intent to distribute crack, in violation of 21 U.S.C.
§ 841(a)(1) ("Count One"), and possession of a firearm by a
felon, contravening 18 U.S.C. § 922(g) ("Count Two"). A
superseding indictment of May 4, 2006, charged Summers
with the additional offense of possession of a firearm during
and in relation to a drug trafficking crime, conduct proscribed
by 18 U.S.C. § 924(c) ("Count Three").
Following the federal indictment, the county police sent a
black jacket to the FBI’s Baltimore field office. The jacket
was then forwarded to the agency’s laboratory in Quantico,
Virginia, arriving at the Evidence Control Unit (the "ECU")
on May 11, 2005. The ECU routed the jacket to DNA Analy-
sis Unit 1, where, according to an internal log, it was deliv-
ered to storage on May 13, 2005. The log shows that FBI
analysts took possession of the jacket on May 18, 2005, to
perform DNA testing, then shuttled it back to storage on May
26, 2005, for eventual return to the ECU on October 18, 2005.
4 UNITED STATES v. SUMMERS
At trial, a black jacket was marked for identification as
Government’s Exhibit 1. Asked whether he recognized the
exhibit, Hampson answered that "[i]t looks like the black
Northface coat the defendant was wearing." J.A. 73.1 Schmick
and Morris were rather less equivocal. Schmick confirmed
that Exhibit 1 was "the coat that we recovered," id. at 152,
and, when questioned whether the jacket in the courtroom was
the one that Summers wore while fleeing, Morris responded
simply, "Yes, it was," id. at 267.
The government’s case-in-chief otherwise featured the
expert testimony of Brendan Shea, a forensic examiner at the
Quantico laboratory who supervises Unit 1’s analysts and
directs them to perform particular tests on evidence. After
identifying Government’s Exhibit 1 as the coat submitted to
the lab, Shea explained that he had directed his subordinate
analysts to conduct two methods of polymerase chain reaction
based, short tandem repeat typing on the jacket. The lab also
performed DNA typing on buccal swabs taken from Sum-
mers’s mouth. Shea compared the typing data, testifying that
although DNA from at least four different people was found
on the jacket, Summers was the major contributor.
Shea documented the typing results and his conclusions in
a three-page report. The report contained a table juxtaposing
the numerical identifiers of the allele found at corresponding
loci of the DNA extracted from the jacket and the buccal
swabs, revealing an exact match. Shea stated "to a reasonable
degree of scientific certainty" that Summers was the major
DNA contributor, statistically calculating the probability of a
random match as equal to or less than one in 280 billion. See
J.A. 524-25. Shea signed the report, and no other lab
employee was named therein or testified at trial. The report
was admitted into evidence as Government’s Exhibit 25.
1
Citations herein to "J.A. __" refer to the contents of the Joint Appendix
filed by the parties to this appeal.
UNITED STATES v. SUMMERS 5
The government presented no evidence of the jacket’s
whereabouts from the time Corporal Hampson placed it in his
cruiser until it arrived at the FBI laboratory. While the jacket
was at the lab, the internal log documented its movement
within Unit 1. The log reflects that four lab employees signed
for and took custody of the jacket at different times. Based on
the varying legibility of their signatures, some of the employ-
ees’ identities are more susceptible than others of being ascer-
tained. It is clear, however, that none of them were Shea,
though he did initial the log at its bottom right corner. See
J.A. 200. The log was admitted into evidence as part of
Defendant’s Exhibit 3.
On cross-examination, Shea acknowledged that he could
not confirm that the jacket he tested was the one that Hamp-
son recovered. Though verifying the authenticity of the log,
Shea could only speak in generalities concerning the jacket’s
safekeeping during the time that it was housed at the lab, testi-
fying that the jacket would have been subjected to the stan-
dard routing and inventory process. Arguing to the jury at
closing, defense counsel emphasized Shea’s concession:
"Brendan Shea told you, six or seven months, I don’t know
what happened to that jacket. I can’t tell you that that jacket
is the same jacket that was allegedly pulled off of Kevin Sum-
mers." J.A. 504-05.
Counsel’s argument ultimately failed to persuade the jury,
which found Summers guilty of the drug and firearm posses-
sion charges underlying Count One and Count Two. The jury
acquitted Summers on Count Three, concluding that he did
not, beyond a reasonable doubt, possess the firearm during
and in relation to a drug trafficking crime. The district court
entered judgment on the jury’s verdict, sentencing Summers
to 262 months in prison, followed by five years of supervised
release. Summers timely noted this appeal, and we possess
jurisdiction pursuant to 28 U.S.C. § 1291.
6 UNITED STATES v. SUMMERS
II.
We review for abuse of discretion a trial court’s decision
concerning the admissibility of evidence. See United States v.
Myers, 589 F.3d 117, 123 (4th Cir. 2009). We will not
adjudge the court to have abused its discretion unless its rul-
ing was "arbitrary and irrational." See United States v. Haney,
914 F.2d 602, 607 (4th Cir. 1990). We review de novo, how-
ever, an evidentiary ruling implicating the Confrontation
Clause. See United States v. Williams, 632 F.3d 129, 132 (4th
Cir. 2011). Finally, we review for abuse of discretion a trial
court’s determination that an evidentiary item’s chain of cus-
tody has been sufficiently established. See United States v.
Ricco, 52 F.3d 58, 61 (4th Cir. 1995).
III.
The Sixth Amendment affords a criminal defendant "the
right . . . to be confronted with the witnesses against him."
U.S. Const. amend. VI. Summers maintains that he was con-
victed by the testimony of witnesses whom he was not permit-
ted to cross-examine, in derogation of the Confrontation
Clause. According to Summers, the government was constitu-
tionally compelled to produce at trial the laboratory employ-
ees who signed the internal log, along with the subordinate
analysts who actually conducted the DNA typing upon which
Shea’s expert conclusions were premised.
A.
In Crawford v. Washington, 541 U.S. 36 (2004), the
Supreme Court unanimously ruled that the defendant’s Con-
frontation Clause rights had been violated by the admission
into evidence of his nontestifying wife’s statement to the
police. The opinion of the Court, authored by Justice Scalia,
overruled Ohio v. Roberts, 448 U.S. 56 (1980), which had
permitted statements of unavailable witnesses to be admitted
at trial insofar as they bore "adequate indicia of reliability,"
UNITED STATES v. SUMMERS 7
meaning that they satisfied a "firmly rooted hearsay excep-
tion" or were otherwise bolstered by "particularized guaran-
tees of trustworthiness." Roberts, 448 U.S. at 66.
Crawford changed the law to condition the admission of
such statements on (1) the witness being unavailable at trial,
and (2) the defendant having had the prior opportunity to
cross-examine the witness. Crawford applies whenever "testi-
monial evidence is at issue." 541 U.S. at 68. Inasmuch as it
was the result of formal police interrogation, the evidence at
issue in Crawford plainly met the Court’s criterion, although
it elected to "leave for another day any effort to spell out a
comprehensive definition of ‘testimonial.’" Id. The Court did
distinguish "nontestimonial hearsay," however, noting that
"an approach that exempted such statements from Confronta-
tion Clause scrutiny altogether" would be consistent with the
Framers’ intent. Id.; cf. United States v. Cabrera-Beltran, 660
F.3d 742, 753 (4th Cir. 2011) (holding that border crossing
records not created for trial are nontestimonial and admissible
under public records exception to hearsay rule).
The distinction between testimonial and nontestimonial
statements came to the forefront in Davis v. Washington, 547
U.S. 813 (2006), in which the trial court had admitted a
recording of a 911 call from a woman to prove, in the absence
of the woman’s testimony, that the defendant, her former boy-
friend, had assaulted her. The Supreme Court unanimously
ruled that the woman’s statement was nontestimonial. The
Court again spoke through Justice Scalia:
Statements are nontestimonial when made in the
course of police interrogation under circumstances
objectively indicating that the primary purpose of the
interrogation is to enable police assistance to meet an
ongoing emergency. They are testimonial when the
circumstances objectively indicate that there is no
such ongoing emergency, and that the primary pur-
pose of the interrogation is to establish or prove past
8 UNITED STATES v. SUMMERS
events potentially relevant to later criminal prosecu-
tion. . . . This is not to imply, however, that state-
ments made in the absence of any interrogation are
necessarily nontestimonial. . . . And of course even
when interrogation exists, it is in the final analysis
the declarant’s statements, not the interrogator’s
questions, that the Confrontation Clause requires us
to evaluate.
Davis, 547 U.S. at 822 & n.1. The Court assumed, for the
sake of argument, that the questions posed by the 911 opera-
tor eliciting the incriminating responses were the acts of the
police, constituting "interrogation." See id. at 823 n.2. Nota-
bly, Justice Thomas concurred only partially in the judgment,
concluding that the responses were admissible because they
were not part of a "formalized dialogue" resembling testi-
mony. See id. at 840 (Thomas, J., concurring in the judgment
in part and dissenting in part).
About a year after the Supreme Court’s decision in Davis
v. Washington, we had occasion to apply its teachings in
United States v. Washington, 498 F.3d 225 (4th Cir. 2007). In
the latter proceeding, an appeal from federal criminal driving
convictions, the district court admitted the expert testimony of
a lab director with respect to his report (which was not part
of the evidentiary record) of gas chromatograph tests per-
formed on the defendant’s blood, though the technicians who
operated the diagnostic machines did not appear at trial. We
affirmed the convictions, concluding that the test data reveal-
ing the presence of alcohol and PCP in the defendant’s blood
were not the technicians’ statements, but instead were "the
‘statements’ of the machines themselves." Washington, 498
F.3d at 230 (emphasis deleted). Judge Niemeyer, writing for
the panel majority, explained that such "raw data," being "in-
dependent of human observation or reporting," was not sus-
ceptible to cross-examination and thus did not implicate the
Confrontation Clause. Id.
UNITED STATES v. SUMMERS 9
Next, in Melendez-Diaz v. Massachusetts, 129 S. Ct. 2527
(2009), the Supreme Court considered whether sworn certifi-
cates from forensic analysts, admitted to attest that the sub-
stance seized from the defendant was cocaine, were
"testimonial" for Confrontation Clause purposes. The Court,
by a 5-4 vote, held in the affirmative and vacated the defen-
dant’s conviction, with Justice Scalia observing for the major-
ity that the certificates were "functionally identical to live, in-
court testimony, doing ‘precisely what a witness does on
direct examination.’" Melendez-Diaz, 129 S. Ct. at 2532
(quoting Davis, 547 U.S. at 830). The Court pointed out that
"the sole purpose of the affidavits was to provide prima facie
evidence of the composition, quality, and the net weight of the
analyzed substance," and that it could be safely assumed "that
the analysts were aware of the affidavits’ evidentiary pur-
pose." Id. (internal quotation marks omitted). Because the
analysts could have been available to testify (or, at least, there
was no showing to the contrary) and because there had been
no opportunity for them to be cross-examined, Crawford
demanded that the defendant’s conviction be overturned.2 Jus-
tice Thomas, providing the determinative fifth vote, wrote a
concurring opinion noting his adherence to the position that
extrajudicial statements implicate the Confrontation Clause
"only insofar as they are contained in formalized testimonial
materials, such as affidavits, depositions, prior testimony, or
confessions." Id. at 2543 (Thomas, J., concurring).
Not long thereafter, we decided United States v. Johnson,
587 F.3d 625 (4th Cir. 2009). In that case, the trial court
admitted the expert testimony of police officers to decipher
2
Justice Scalia cautioned, however, that "we do not hold, and it is not
the case, that anyone whose testimony may be relevant in establishing the
chain of custody, authenticity of the sample, or accuracy of the testing
device, must appear in person as part of the prosecution’s case."
Melendez-Diaz, 129 S. Ct. at 2532 n.1. Rather, "[i]t is up to the prosecu-
tion to decide what steps in the chain of custody are so crucial as to
require evidence; but what testimony is introduced must (if the defendant
objects) be introduced live." Id.
10 UNITED STATES v. SUMMERS
code words used in telephone conversations between drug
traffickers. The experts’ testimony was based upon their expe-
rience in general, together with particular knowledge gleaned
from the investigation. Judge Wilkinson authored our opinion,
pointing out that Crawford "in no way prevents expert wit-
nesses from offering their independent judgments merely
because those judgments were in some part informed by their
exposure to otherwise inadmissible evidence." Johnson, 587
F.3d at 635. On the other hand, Crawford would apply to bar
testimony "where the witness is used as little more than a con-
duit or transmitter for testimonial hearsay, rather than as a
true expert whose considered opinion sheds light on some
specialized factual situation." Id. Thus, "an expert’s use of
testimonial hearsay is a matter of degree." Id. Judge Wilkin-
son’s opinion distinguished Melendez-Diaz, observing that, in
Johnson, the government’s experts appeared at trial and were
cross-examined. See id. at 636.
Most recently, the Supreme Court issued its opinion in Bul-
lcoming v. New Mexico, 131 S. Ct. 2705 (2011). Bullcoming
was another 5-4 case, and this time Justice Ginsburg delivered
the opinion of the Court, which attracted the concurrence of
Justice Thomas in everything but Part IV and footnote 6 (reit-
erating Justice Scalia’s "primary purpose" test in Davis for
evaluating whether a statement is testimonial). Bullcoming
involved a drunk-driving trial in which the state introduced a
lab report certifying the results of a blood-alcohol test per-
formed on a sample taken from the defendant. The signatory
analyst did not testify, "having very recently [been] put on
unpaid leave," 131 S. Ct. at 2711-12 (alteration in original),
but another analyst familiar with the lab’s procedures did. The
testifying analyst had not participated in or observed the
defendant’s blood test, however.
The Supreme Court vacated the defendant’s conviction:
"As a rule, if an out-of-court statement is testimonial in
nature, it may not be introduced against the accused at trial
unless the witness who made the statement is unavailable and
UNITED STATES v. SUMMERS 11
the accused has had a prior opportunity to confront that wit-
ness." Bullcoming, 131 S. Ct. at 2713. The Court stressed that
the first analyst’s certification "reported more than a machine-
generated number," in that it also verified that the lab had
received the blood sample intact, that the sample was in fact
the defendant’s, that the analyst performed a particular test in
accordance with a specific protocol, and that the process had
not been compromised. Id. at 2714. Although the report was
in this case unsworn, it was yet testimonial because it was
"created solely for an ‘evidentiary purpose,’" id. at 2717
(quoting Melendez-Diaz, 129 S. Ct. at 2532), and was "‘for-
malized’ in a signed document," id. (quoting Davis, 547 U.S.
at 837 n.2 (Thomas, J., concurring in the judgment in part and
dissenting in part)).
Writing separately, Justice Sotomayor pointed out that Bul-
lcoming "is not a case in which the person testifying is a
supervisor, reviewer, or someone else with a personal, albeit
limited connection to the scientific test at issue." 131 S. Ct.
at 2722 (Sotomayor, J., concurring in part). According to Jus-
tice Sotomayor, "[i]t would be a different case if, for example,
a supervisor who observed an analyst conducting a test testi-
fied about the results or a report about such results." Id. In
addition, Bullcoming "is not a case in which an expert witness
was asked for his independent opinion about underlying testi-
monial reports that were not themselves admitted into evi-
dence." Id. (citing Fed. R. Evid. 703). Finally, Justice
Sotomayor noted that Bullcoming — perhaps in contrast to
the situation we confronted in United States v. Washington,
supra — "is not a case in which the State introduced only
machine-generated results, such as a printout from a gas chro-
matograph," and that the Court did not decide "whether . . .
a State could introduce (assuming an adequate chain of cus-
tody foundation) raw data generated by a machine in conjunc-
tion with the testimony of an expert witness." Id.
B.
Against the backdrop of Crawford and the subsequent
authorities applying it, we evaluate first the Confrontation
12 UNITED STATES v. SUMMERS
Clause implications, if any, of the absence of trial testimony
from the FBI lab employees who signed the internal log docu-
menting custody of the jacket. Justice Scalia may well have
had things like the log in mind when he spoke in Melendez-
Diaz of evidence that "may be relevant in establishing the
chain of custody, authenticity of the sample, or accuracy of
the testing device." 129 S. Ct. at 2532 n.1; see supra note 2.
Although the government is required, after Melendez-Diaz, to
provide live testimony if it deems evidence of certain "steps
in the chain of custody" to be crucial, see 129 S. Ct. at 2532
n.1, no such requirement inheres when chain-of-custody evi-
dence is introduced by the defense, see Evans v. Verdini, 466
F.3d 141, 147 (1st Cir. 2006) (declining to find Sixth Amend-
ment violation where defendant’s questioning of witness
opened door to rebuttal testimony not subject to cross-
examination).
In this case, Summers caused the log to be admitted as part
of Defendant’s Exhibit 3. Thus, to the extent that there could
have been points to be scored with the jury by challenging the
handling of the jacket at the FBI lab, it was incumbent upon
the defense to subpoena the lab employees. Cf. Melendez-
Diaz, 129 S. Ct. at 2540 (recognizing, in contrasting situation,
where prosecution ignores its duty to provide necessary wit-
nesses, defendant’s subpoena power "is no substitute for the
right of confrontation").
The prosecutor’s decision to forgo any chain-of-custody
evidence with respect to the jacket suggests that the govern-
ment considered that part of its case to be something less than
crucial. The government’s strategy in this regard appears to
have been vindicated, notwithstanding the risk that jurors who
watch television and movies may expect evidence revealing
the chain of custody, providing a tenacious defense lawyer the
opportunity to exploit that expectation by peppering prosecu-
tion witnesses with questions probing the omission. Nonethe-
less, "[t]he chain of custody is not relevant when a witness
identifies the object as the actual object about which he testi-
UNITED STATES v. SUMMERS 13
fied." United States v. Phillips, 640 F.2d 87, 94 (7th Cir.
1981).
In deciding whether the jacket was admissible, the district
court needed only to satisfy itself that it was "improbable that
the original item had been exchanged with another or other-
wise tampered with." United States v. Jones, 356 F.3d 529,
535 (4th Cir. 2004); see Fed. R. Evid. 901(a) ("The require-
ment of authentication or identification as a condition prece-
dent to admissibility is satisfied by evidence sufficient to
support a finding that the matter in question is what its propo-
nent claims."). Establishing a strict chain of custody "is not an
iron-clad requirement, and the fact of a missing link does not
prevent the admission of real evidence, so long as there is suf-
ficient proof that the evidence is what it purports to be and has
not been altered in any material respect." United States v.
Ricco, 52 F.3d 58, 61-62 (4th Cir. 1995). The district court’s
role is merely to act as a gatekeeper for the jury, and the pro-
ponent of the evidence need only make a prima facie showing
of its authenticity. See United States v. Vidacak, 553 F.3d
344, 349 (4th Cir. 2009).
At trial, Hampson, Schmick, and Morris each identified
Government’s Exhibit 1 as the North Face jacket Summers
wore the night he was arrested. The officers’ testimony was
more than enough to put the issue before the jury, which
heard in counterbalance Shea’s testimony on cross-
examination that he had no idea where the jacket had been
prior to its receipt by the lab six or seven months following
Summers’s arrest, or whether it had been tampered with. Dur-
ing the defense’s closing argument, counsel emphasized
Shea’s admissions; absent any affirmative evidence of tam-
pering, however, the jury simply declined to attribute much
importance to the imperfections in the government’s docu-
mentation. Under the circumstances, the district court did not
abuse its discretion in ruling that admission of the jacket into
evidence satisfied the Rule 901(a) threshold.
14 UNITED STATES v. SUMMERS
C.
1.
A more substantial question is presented by the absence at
trial of the analysts responsible for conducting the DNA tests
on the jacket, the results of which provided the basis for
Shea’s testimony and the preparation of his report. We per-
ceive little difficulty with the admission of Shea’s testimony,
given the predominance therein of his independent, subjective
opinion and judgment relative to the lesser emphasis accorded
the objective raw data generated by the analysts. See Fed. R.
Evid. 703 (instructing that facts or data upon which an expert
bases an opinion or inference, if of a type reasonably relied
on by similar experts, "need not be admissible in evidence in
order for the opinion or inference to be admitted").
On the witness stand, Shea painstakingly explained the pro-
cess whereby he, and he alone, evaluated the data to reach the
conclusion that, to a reasonable degree of scientific certainty,
Summers was the major contributor of the DNA recovered
from the jacket. In that respect, Shea’s testimony was no dif-
ferent, and no more problematic, than that of the police offi-
cers in Johnson. Far from being "a conduit or transmitter" of
what his subordinate analysts had concluded about the jacket,
Shea’s opinion was an "original product" that could be (and
was) readily "tested through cross-examination." Johnson,
587 F.3d at 635.
To a considerable extent, much the same can be said about
Shea’s written report, which more or less mirrored his trial
testimony. The appearance of the analysts’ testing results
within, however, gives us pause insofar as the table detailing
those results constituted a more prominent part of the report
than the underlying data did of the testimony. This is not to
imply that the data was unimportant to Shea’s opinion, for of
course it was crucial. The difference is that while Shea’s testi-
mony focused upon the conclusions he drew from the data,
UNITED STATES v. SUMMERS 15
the report invited the jurors’ attention to the data’s numerical
identifiers. Admission of the report presented an unnecessary
risk that the jury would improperly evaluate the DNA evi-
dence based on its lay perceptions of what the data meant
rather than on Shea’s expertise and any potential inaccuracies
in his conclusions that might be developed on cross-
examination. Cf. Fed. R. Evid. 703 ("Facts or data that are
otherwise inadmissible shall not be disclosed to the jury . . .
unless the court determines that their probative value in assist-
ing the jury to evaluate the expert’s opinion substantially out-
weighs their prejudicial effect.").
Presented with an analogous situation, the Seventh Circuit
affirmed the defendant’s conviction for trafficking in crack
cocaine, notwithstanding that the head of the lab unit testified
in place of the analyst who actually tested the seized sub-
stance. See United States v. Turner, 591 F.3d 928 (7th Cir.
2010). In Turner, the supervisor essentially peer-reviewed his
subordinate’s report, which was not admitted into evidence,
and then testified, based on his own training and experience,
that the substance produced at trial was crack. The court of
appeals rejected the defendant’s Confrontation Clause chal-
lenge, relying on another drug trafficking case, United States
v. Moon, 512 F.3d 359 (7th Cir. 2008). The court in Moon
held, in agreement with our decision in United States v. Wash-
ington, that pure instrument read-outs are not testimonial. See
Moon, 512 F.3d at 362; see also Turner, 591 F.3d at 932.
Indeed, our Washington precedent controls the result in
Summers’s case. The numerical identifiers of the DNA allele
here, insofar as they are nothing more than raw data produced
by a machine, are indistinguishable in character from the gas
chromatograph data in Washington and the chromatograph
and spectrometer results in Moon and Turner. Undoubtedly,
the more sound practice would have been to exclude Shea’s
report from evidence, in the same fashion that the founda-
tional reports were treated in Washington and Turner, but the
jury’s access to the report during deliberations in no way
16 UNITED STATES v. SUMMERS
detracts from the validity of its verdict. See Moon, 512 F.3d
at 362 (opining that non-testifying expert’s "own conclusions
based on the data should have been kept out of evidence," but
declining to disturb conviction for plain error in light of testi-
fying expert’s "live testimony and availability for cross-
examination").
The Supreme Court’s decisions in Melendez-Diaz and in
Bullcoming do not compel a different result. The notarized
certificates of analysis at issue in Melendez-Diaz revealed
considerably more than raw data; they concluded that the sub-
stance attributed to the defendant’s possession "was found to
contain: Cocaine." 129 S. Ct. at 2531. To be sure, Shea’s
report also contained the statement on the ultimate issue that
Summers was "the major contributor of the DNA obtained
from" the jacket, J.A. 524 (endnote omitted), but that was
Shea’s statement and not that of the analysts, and was in any
event merely duplicative of his permissible trial testimony.3
Bullcoming is distinguishable because it was patently not,
as Justice Sotomayor stressed, a case contesting the Sixth
Amendment implications of machine-generated results. Sum-
mers has nonetheless directed our attention to a case recently
published by the Court of Appeals of Maryland, Derr v. State,
___ A.3d ___, No. 6 Sept. Term, 2010, 2011 WL 4483937
(Md. Sept. 29, 2011). The court in Derr reversed the defen-
dant’s judgment of conviction for multiple sexual offenses
and remanded for a new trial, holding that the trial court had
run afoul of the Confrontation Clause by permitting the prose-
cution’s expert to testify regarding DNA analyses on crime
scene evidence performed in years past by others, and to tes-
tify with respect to the reference sample analysis undertaken
3
Because we conclude that the numerical identifiers in Shea’s report are
not statements implicating the Confrontation Clause, we need not consider
whether an expert’s report is sufficiently "formalized" to satisfy Justice
Thomas’s definition of a testimonial statement as expressed in his concur-
ring opinion providing the deciding vote in Melendez-Diaz.
UNITED STATES v. SUMMERS 17
by her subordinates, without the supervisor’s active participa-
tion or personal observance.
In so ruling, the Derr court concluded that "the testing pro-
cedures and method employed, the DNA profile created, and
the conclusion that there is a match are testimonial in nature,"
with the result that the prosecution was obliged to produce the
analysts who actually performed the testing. 2011 WL
4483937, at *1. The DNA profile referenced by the court is
derived from an electropherogram, that is, a "graph that dis-
plays a series of different-colored peaks of different heights,"
documenting "the allele values at each chromosomal location
or loci." Id. at *5. According to the court, "the DNA profile
is a statement of the analyst that essentially says: ‘This is the
DNA profile for this person.’" Id. at *12. Based on the court’s
explanation, we perceive that the "DNA profile" it held to be
a testimonial statement closely corresponds to what we have
called in this case the "numerical identifiers of the DNA
allele."
To the extent that Derr ascribes testimonial significance to
machine-generated results — a conclusion that cannot be
squared with our own circuit precedent — we find its reason-
ing unpersuasive. Melendez-Diaz and Bullcoming each
involved one or more absent expert’s "certification" with
respect to the meaning of the underlying raw data, and no
such certification is at issue here. The only evidence interpret-
ing the raw data was provided by Shea via his report and live
testimony, and he was strenuously cross-examined by the
defense.
We are cognizant of the concerns attendant to excusing
analysts and technicians from trials under such circumstances,
such concerns being best expressed, perhaps, by our late col-
league Judge Michael in dissent in United States v. Washing-
ton:
Finally, it is not for the majority to say that "there
would be no value in cross-examining the lab techni-
18 UNITED STATES v. SUMMERS
cians." A defendant’s right to confront witnesses
against him does not depend on whether a court
believes that cross-examination would be useful. The
strategic decision of whether to cross-examine a lab-
oratory technician is one for the defendant to make.
. . . Forensic test reports are not always accurate.
Testing errors are sometimes caused by technician
inexperience, sample contamination, failure to fol-
low laboratory protocols, or breaks in the chain of
custody. . . . The best way to expose errors or falsifi-
cation in testing is through cross-examination of the
laboratory technician.
498 F.3d at 235 (Michael, J., dissenting). We heartily agree
with Judge Michael that the handling of evidence, calibration
of equipment, and the like can be fertile ground for cross-
examination, but we must temper our agreement with the
practical observation that a serious challenge to processing
defects is likely to arise only infrequently. When the issue is
palpable, it is up to the defense to advise the prosecution in
good faith such that the attendance of appropriate witnesses
may be secured. See Moon, 512 F.3d at 361 ("A defendant
who sincerely wants live testimony should make the demand,
so that the declarant can be produced. The lack of a demand
for testimony by an available declarant leads to the conclusion
that the appellate argument is strategic rather than sincere.");
cf. Washington, 498 F.3d at 220 ("The value of cross-
examination might relate to authentication or to a description
of the machines or to the chain of custody, but none of these
were issues at trial."). Of course, the duty to produce neces-
sary witnesses and, it necessarily follows, the consequences of
their absence, is always assumed by the prosecution. See
Melendez-Diaz, 129 S. Ct. at 2540 (declaring that "the Con-
frontation Clause imposes a burden on the prosecution to
present its witnesses, not on the defendant to bring those
adverse witnesses into court").
UNITED STATES v. SUMMERS 19
2.
Even were we not persuaded that our Washington precedent
controls the result in this case, effectively rebutting Sum-
mers’s contention that he was entitled to confront the lab ana-
lysts at trial, his conviction need not be disturbed if the
purported error was harmless beyond a reasonable doubt. See
Chapman v. California, 386 U.S. 18, 24 (1967). We have pre-
viously mentioned that admission of Shea’s report was almost
wholly cumulative of Shea’s live testimony, a circumstance
that casts substantial doubt upon the importance of the report
in establishing Summers’s guilt.
More fundamentally, however, we cannot help but note that
the government’s decision to introduce DNA evidence
derived from the jacket had the unintended collateral effect of
rendering a straightforward case significantly more complex.
With respect to proving ownership of the jacket, the evidence
introduced through Shea was scarcely more than the thin
glaze on a dense cake baked to doneness by the officers’
largely unshakable testimony that: (1) Summers was wearing
the jacket before he ran; (2) he was not wearing the jacket
when he was caught; and (3) the jacket was found in the
immediate vicinity of his flight path. Although we suppose
that the jury could have been impressed that Quantico
weighed in on the issue, we hardly think that the government
needed to rely on the FBI’s star power to prevail in its open-
and-shut case. Even had the district court’s admission of
Shea’s report constituted error, it would surely be harmless
beyond a reasonable doubt.
IV.
Pursuant to the foregoing, we affirm the district court’s
entry of judgment on the jury’s verdict.
AFFIRMED
20 UNITED STATES v. SUMMERS
FLOYD, Circuit Judge, concurring in the judgment:
Although I concur in the judgment, I respectfully disagree
with the majority’s decision to reach the Confrontation Clause
issue.
As we recognized in Norfolk Southern Railway Co. v. City
Of Alexandria, 608 F.3d 150 (4th Cir. 2010), "the principle of
constitutional avoidance . . . requires the federal courts to
strive to avoid rendering constitutional rulings unless abso-
lutely necessary." Id. at 156-57. "It is not the habit of the
Court to decide questions of a constitutional nature unless
absolutely necessary to a decision of the case." Ashwander v.
Tenn. Valley Auth., 297 U.S. 288, 347 (1936) (Brandeis, J.,
concurring) (internal quotation marks omitted).
Here, the majority states that any error in regards to a Con-
frontation Clause violation is harmless beyond a reasonable
doubt. I agree with this determination. Hence, because I am
of the opinion that it is unnecessary to resolve a thorny issue
such as this in what is an evolving area of constitutional law,
I would decline to address the alleged Confrontation Clause
violation.