A jury convicted Angel M. Anderson of rape, robbery, and forcible sodomy. On appeal, Anderson argues that:
• DNA was seized from him in violation of the Fourth Amendment and then used as a basis for seeking a search warrant to confirm the DNA match,
*708 • the delay between the crime and his arrest was so long as to violate his due process rights,
• the DNA test results should not have been admitted because the Commonwealth’s chain-of-custody proof violated his confrontation rights and, in any event, was factually inadequate, and
• he should not have been convicted of robbery because no facts suggested he intimidated the victim into giving him her money.
Disagreeing with each of these assertions, we affirm his convictions.
I.
Under settled principles, we review the evidence in the “light most favorable” to the Commonwealth.
Commonwealth v. Hudson,
Early one morning in 1991, Laura Berry was walking to an elementary school in Fairfax where she worked as an administrative assistant. While walking through a wooded area near the school, a man appeared and grabbed her from behind by the throat and face. The attacker pulled her to the bottom of the ravine, raped and sodomized her, and then robbed her of $63.
At a local hospital, Berry was examined by an emergency room physician who used a Physical Evidence Recovery Kit (PERK) to obtain specimens for evidence. The investigating officer forwarded the specimens to the Virginia Department of Forensic Science (DFS). DFS scientists isolated a sperm fraction on the vaginal swabs collected from Berry. Given the limits of DNA technology at that time, however, they were unable to identify the attacker’s DNA from that sperm frac *709 tion. Because Berry did not know her attacker, the crime remained unsolved.
Ten years later, in 2001, after advancements in DNA technology, the investigating officer requested a new test on Berry’s PERK specimen. Using newly developed techniques, the forensic scientists extracted the attacker’s DNA from the sperm fraction and entered the results into the Virginia Forensic Laboratory’s DNA databank.
In 2003, Anderson was arrested in Stafford County on unrelated rape and sodomy charges. Upon being arrested, Anderson’s DNA was obtained and entered into the DNA databank. Shortly thereafter, the investigating officer handling Berry’s case learned that the DNA taken from Anderson matched the DNA of the man who attacked Berry in 1991. Based on this match, the investigating officer obtained a search warrant to secure additional saliva swabs from Anderson. Tests of the DNA from those samples confirmed Anderson as the man whose sperm had been found in Berry after the 1991 attack.
Presented with this evidence, a jury found Anderson guilty of raping, sodomizing, and robbing Berry. From these convictions he now appeals.
II.
A DNA Samples & Code § 19.2-310.2:1
Code § 19.2-310.2:1 authorizes law enforcement officers to obtain a sample of “saliva or tissue” for DNA testing from anyone arrested for certain violent felonies. The testing is meant to isolate genetic “identification characteristics specific to the person.” Code § 19.2-310.2:1. After a magistrate or grand jury confirms that probable cause exists for the arrest, id., the sampling logistics are coordinated by the “law-enforcement agency responsible for arrest booking in the jurisdiction.” Code § 19.2-310.3:1(A).
On appeal, Anderson argues that the statute violates the Fourth Amendment because it authorizes what amounts to *710 a “suspicionless search” unrelated to any effort by law enforcement to obtain evidence for the specific charge justifying the arrest. We disagree.
A search of an arrestee requires no independent legal justification apart from the arrest itself. “A custodial arrest of a suspect based on probable cause is a reasonable intrusion under the Fourth Amendment; that intrusion being lawful, a search incident to the arrest requires no additional justification.”
United States v. Robinson,
That is particularly true when the search merely seeks to identify the arrestee. When a person is “arrested upon probable cause, his identification becomes a matter of legitimate state interest and he can hardly claim privacy in it.”
Id.; see also Smith v. United States,
Though the probable cause justifying an arrest likewise justifies a search incident to an arrest, it does not follow that the Fourth Amendment has no further role in limiting the manner of the incidental search. In this case, however, Anderson does not challenge the specific manner in which his DNA sample was taken or the nominal degree of physical invasiveness it may have involved. See id. at 307 (finding that *711 even the DNA blood test sampling procedure involves “virtually no risk, trauma, or pain” (citation omitted)). Thus, this case does not require us to determine at what point a search incident to an arrest becomes unreasonable due to the manner in which it is performed.
For these reasons, we hold that the collection of a DNA sample from Anderson under Code § 19.2-310.2:1 did not violate the Fourth Amendment’s prohibition of unreasonable searches and seizures. The procedure involved a permissible application of law enforcement’s authority to search an arrestee incident to an arrest. 1
B. Preindictment Delay
Anderson also claims it took too long for law enforcement to solve the crime and to arrest him on the 1991 Fairfax charges. Due process principles, Anderson contends, bar any criminal prosecution of him at this late date. We find no support for this argument, however, under governing precedent.
The common law imposed no time limitation on the state’s initiation of felony prosecutions.
See
1 Charles E. Torcia,
Wharton’s Criminal Law
§ 92, at 628 (15th ed.1993); Joel Prentiss Bishop,
Commentaries on the Law of Statutory Crimes
§ 257, at 243 (2d ed. 1883). The imposition of a specific preindictment time limit on such prosecutions remains solely a matter of “legislative grace.” Torcia,
supra
§ 92, at 629. Consistent with the common law, Virginia has no general statute of limitation on felonies.
See Foster v. Commonwealth,
*712
Even in the absence of a statutory limitations period, the Constitution plays a “limited role” in situations alleging preindictment delay.
Morrisette v. Commonwealth,
Due process principles bar a prosecution for preindictment delay only when the “defendant incurred actual prejudice as a result of the delay” and the “prosecutor intentionally delayed indicting the defendant to gain a tactical advantage.”
Morrisette,
In this case, we need not examine in any detail Anderson’s claim of actual prejudice. Anderson admits he cannot prove the prosecutor intentionally stalled the indictment in an effort to obtain some tactical advantage, a necessary showing under the Virginia Supreme Court’s decision in
Morrisette.
Anderson acknowledges his due process challenge fails under
Morrisette,
but urges us to abandon that precedent and to adopt the Fourth Circuit’s approach in
Howell v. Barker,
Applying the standard for preindictment delay recognized by the Virginia Supreme Court in Morrisette—-which requires proof that the “prosecutor intentionally delayed indicting the defendant to gain a tactical advantage,”
Morrisette,
C. Certificate of Analysis—Chain of Custody
Anderson next argues the Commonwealth failed to prove the chain of custody for the PERK samples tested by DFS. Any use of Code § 19.2-187.01’s inference violates his confrontation rights, Anderson contends. He also claims the lack of testimony from the emergency room nurse and law enforcement personnel likewise renders inadmissible the certificate of analysis and accompanying expert testimony. Disagreeing with both assertions, we find the statutory inference constitutional and the remaining chain-of-custody proof sufficient.
*714 (i) The Statutory Chain-Of-Custody Inference
We begin with Code § 19.2-187.01, which “authorizes a trial court to receive a certificate of analysis as evidence of the chain of custody of the material tested.”
Harris v. Commonwealth,
The Sixth Amendment limits a defendant’s confrontation right to “witnesses against him.”
Davis v. Washington,
— U.S. —, —,
We recently emphasized this point in
Michels,
holding that an official record from an out-of-state agency was not testimonial hearsay. We reasoned that
Crawford,
as many courts have held, did not extend the Sixth Amendment to “documents establishing the existence or absence of some objective fact, rather than detailing the criminal wrongdoing of the defendant,” particularly affidavits used merely “to verify the chain of custody and authenticity of the underlying documentary
*715
evidence” or to certify the “results of laboratory tests” performed by scientific personnel.
Michels,
Code § 19.2-187.01’s inference serves merely to verify the chain of custody of the samples while being tested by DFS scientists. It codifies—in this limited context—the accepted maxim that, in the “absence of clear evidence to the contrary, courts may presume that public officers have properly discharged their official duties.”
Robertson v. Commonwealth,
Consistent with our reasoning in
Michels,
we hold the chain-of-custody inference supplied by Code § 19.2-187.01 constitutes nontestimonial evidence outside the protective “perimeter” of the Confrontation Clause.
See Davis,
— U.S. at —,
(11) Remaining Chain-Of-Custody Evidence
As for Anderson’s challenge to the chain of custody of the samples while in the hands of the medical personnel assembling the PERK and the investigating officer relaying the samples to and from the DFS laboratory, we review that evidence in the “light most favorable to the Commonwealth, granting to it all reasonable inferences fairly deducible therefrom.”
Alvarez v. Commonwealth,
So viewed, the record amply supports a reasonable inference that the “evidence obtained by the police was the same evidence tested.”
Jeter v. Commonwealth,
*717
Anderson complains about the absence of any testimony from the emergency room nurse or any law enforcement officer familiar with the storage protocols of the secure property room. A court need not hear, however, from every witness who physically handled the samples for the certificate to be admissible. Nor must the Commonwealth’s evidence “exclude every conceivable possibility of substitution, alteration, or tampering.”
Pope v. Commonwealth,
In short, Anderson’s real complaint goes not to the chain-of-custody requirement for admissibility (determined by the trial judge as evidentiary gatekeeper), but to the debate over the weight of such evidence (determined by the jury as factfinder). Either way, we come to the same conclusion: A prima facie showing supported the trial judge’s decision to admit the DNA evidence, and the testimony at trial provided the jury with a sufficient factual basis for finding it persuasive.
D. Sufficiency of Evidence—Robbery Conviction
Virginia law defines robbery as stealing the personal property of another, from her person or in her presence, against her will “by violence or intimidation.”
Seaton v. Commonwealth,
Ms. Berry testified that when the perpetrator had finished the rape and sodomy he asked if she had any money. She *718 then handed him her purse. The perpetrator asked her to remove the money from her purse and Ms. Berry complied. The perpetrator never yelled at Ms. Berry or touched her in any manner with regards to the taking of her money.
Appellant’s Br. at 33. From there, Anderson argues that he could not be convicted of robbery because of the mere “temperamental timidity of the victim.” Id.
In other words, Anderson ended his violent rape of Berry with a demand for her money, yet claims to be innocent of robbery because nothing he did intimidated her into complying with his demand. Under this theory, a thief who threatens to shoot a victim before taking her money commits robbery. But a thief who first shoots the victim and then asks for her money does not, apparently because the inherent intimidation of being asked for money by someone who has just shot you should be dismissed as a matter of mere timidity.
Suffice it to say, violence immediately preceding a demand for money has always been understood as sufficient to convert mere thievery into robbery. See generally 3 Wayne R. LaFave, Substantive Criminal Law § 20.3(d), at 184 (2d ed. 2003) (“One may commit robbery by striking his victim with fist or weapon and then, having thus rendered the victim dead or unconscious or dazed or unwilling to risk another blow, taking his property away from him.”). The jury in Anderson’s case had ample reason to conclude that his rape and forcible sodomy of Berry intimidated her into submitting to his demand for money.
III.
Finding no merit in any of Anderson’s arguments, we affirm his convictions for rape, forcible sodomy, and robbery.
Affirmed.
Notes
. At oral argument, Anderson asserted that the Fourth Amendment applies to each computerized “search" of DNA records
within
the state's DNA databank. We find this assertion meritless.
See Johnson v. Quander,
. Only decisions of the United States Supreme Court can supersede binding precedent from the Virginia Supreme Court.
See generally
*713
Lockhart v. Fretwell,
. As the Fourth Circuit has acknowledged, “every circuit, other than our own and the Ninth Circuit, has indeed held that, in order to establish that a lengthy preindictment delay rises to the level of a due process violation, a defendant must show not only actual substantial prejudice, but also that 'the government intentionally delayed the indictment to gain an unfair tactical advantage or for other bad faith motives.' ”
Jones v. Angelone,
.
See R.H. Stearns Co. v. United States,
. Anderson also suggests that the expert testimony of Karen Ambrozy, a DFS scientist, relied in part on preparatory work performed by a lab assistant, Kari Yoshida. This reliance, Anderson contends, violates
Crawford
because Yoshida did not appear at trial. Assuming without deciding this specific point was preserved for appeal under Rule 5A:18, we nonetheless find it unavailing.
Crawford
applies to testimonial hearsay
statements
by declarants who do not later appear at trial to expose their prior statements to the crucible of cross-examination. Davis, — U.S. at —,
