Commonwealth v. Jones ( 2015 )


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    SJC-11775
    COMMONWEALTH   vs.   CLAUZELL JONES.
    Worcester.     March 2, 2015. - September 21, 2015.
    Present:   Gants, C.J., Spina, Cordy, Botsford, Duffly, Lenk, &
    Hines, JJ.
    Rape.  Rape-Shield Statute. Deoxyribonucleic Acid.
    Constitutional Law, Confrontation of witnesses, Public
    trial. Evidence, Expert opinion, Scientific test, Hearsay,
    Chain of custody, Sexual conduct. Witness, Expert.
    Practice, Criminal, Confrontation of witnesses, Public
    trial, Instructions to jury.
    Indictments found and returned in the Superior Court
    Department on March 17, 2009.
    The cases were tried before David Ricciardone, J., and a
    motion for a new trial, filed on July 5, 2013, was heard by him.
    The Supreme Judicial Court granted an application for
    direct appellate review.
    Kathleen M. O'Connell for the defendant.
    Ellyn H. Lazar-Moore, Assistant District Attorney, for the
    Commonwealth.
    Brad A. Compston, for Massachusetts Association of Criminal
    Defense Lawyers, amicus curiae, submitted a brief.
    LENK, J.   The defendant was indicted on charges of rape, in
    2
    violation of G. L. c. 265, § 22 (b), and furnishing alcohol to a
    minor, in violation of G. L. c. 138, § 34.   At trial, the
    defendant testified both that his sexual contact with the victim
    did not involve penetration and that it was consensual.      To
    establish the element of penetration necessary to sustain a
    conviction of rape, the Commonwealth offered, in addition to the
    victim's testimony, results of deoxyribonucleic acid (DNA)
    testing that purportedly identified the defendant's saliva on
    "intimate" swabs taken from the victim's vagina.   To prove that
    the sexual contact was nonconsensual, the Commonwealth offered,
    among other evidence, testimony concerning the victim's conduct
    shortly after the alleged rape occurred.   The defendant was
    convicted by a Superior Court jury in May, 2011, on both
    indictments.
    On appeal, the defendant argues that the judge erred in
    allowing the Commonwealth to introduce, through the testimony of
    an expert witness who was not present when the victim's "rape
    kit" examination was performed, evidence concerning how the
    various swabs that the expert tested were collected.   The
    defendant further contends that the judge violated his right to
    a public trial by holding, pursuant to G. L. c. 233, § 21B (rape
    shield law), an in camera hearing to determine the admissibility
    of evidence relating to the victim's prior sexual contact with
    the individual to whom the victim first reported the alleged
    3
    rape (first complaint witness).    Finally, the defendant
    challenges the judge's decision, also based on the rape shield
    law, to prohibit defense counsel from introducing evidence
    regarding the victim's prior sexual relationship with the first
    complaint witness, and challenges the jury instructions as
    inconsistent with a decision issued by this court after the
    defendant's trial.
    We hold that the judge erred in permitting the expert to
    testify about how the various swabs she tested had been
    collected, and that the preserved error was prejudicial.      We
    therefore vacate the defendant's convictions and remand for a
    new trial.   We further conclude that the judge erred in closing
    the rape shield hearing without conducting the four-prong
    analysis required for court room closures under Waller v.
    Georgia, 
    467 U.S. 39
    , 48 (1984) (Waller).    Because we are
    ordering a new trial based on the erroneously admitted expert
    testimony, we address only briefly the defendant's two remaining
    arguments.
    1.   Background.   We summarize the evidence presented at
    trial, with particular focus on the evidence relevant to the
    defendant's arguments on appeal.    We reserve certain substantive
    and procedural facts for later discussion.
    4
    On October 17, 2008, the victim, P.B.,1 then a high school
    senior, attended a party at the defendant's house in Gardner.
    Also in attendance were several other high school age friends of
    the victim:    Rachel, Tim, and the defendant's son, Chris.2   The
    victim and Rachel testified that, shortly after they arrived,
    they drank some beer, followed by "nips," small containers of
    flavored alcoholic beverages.    The group then played a game of
    "strip poker," although the victim testified that she only took
    off her sweatshirt and possibly her socks.    The defendant
    provided marijuana, which everyone smoked.
    The defendant then offered P.B. and Rachel shots of rum,
    which they accepted.    He served the rum out of wine glasses.
    Both P.B. and Rachel testified that they saw some type of pink
    substance in the glasses before they drank.
    After drinking the rum, both the victim and Rachel became
    violently ill.    Although the victim had consumed alcohol before,
    she testified that she had never felt as sick as she did that
    night.    She vomited in the bathroom for approximately ten
    minutes, and then went limp.    The other attendees picked the
    victim up from the bathroom floor and placed her on a couch in
    the defendant's bedroom.    While she was being carried, her head
    struck the doorframe.
    1
    A pseudonym.
    2
    A pseudonym.
    5
    When the victim awoke, she was lying naked on her stomach
    on the bed with the defendant behind her.    She felt the
    defendant's fingers in her vagina; she then felt the defendant's
    penis in her vagina.    When she turned over, he jumped out of the
    bed and announced that he had to go to the bathroom.       After the
    victim put her clothes on, the defendant emerged from the
    bathroom wearing a robe.     The victim said, "I don't want to be
    here.   I'm leaving."
    The victim entered the living room and climbed onto the
    couch where Tim was sleeping, placing herself between the couch
    and Tim's legs.   Tim said, "Nah," pushed the victim away, and
    moved to another seat.     At that point, the victim said,
    "[Chris]'s dad just fucked me," and began to cry.     The victim
    then spent forty-five minutes to one hour making telephone calls
    and sending text messages, trying to contact someone to pick her
    up from the defendant's house.
    Sometime between 4 and 4:30 A.M., the victim finally
    reached a school friend, Alexis.     The victim left the
    defendant's house and went to a nearby twenty-four hour
    pharmacy.   Alexis, in a vehicle driven by her mother, arrived to
    pick up the victim.     They found her sitting on the curb outside
    the pharmacy, crying.
    Alexis's mother urged the victim to go to the hospital.
    The victim initially declined.     Instead, she went into Alexis's
    6
    room, and the two talked for a while.    Another school friend,
    Ellen, along with Ellen's boy friend, then came to get the
    victim and drove her to Ellen's house.    There, the victim was
    picked up by her boy friend, Chad, and taken to her house.
    That afternoon, Chad took the victim to the hospital.      They
    first went to a hospital in Fitchburg.    From there, they were
    directed to a hospital in Leominster, where a sexual assault
    nurse examiner (SANE) performed a "rape kit" examination on the
    victim.
    At trial, the defendant, testifying in his own defense,
    offered a different account of the events of the evening.
    According to the defendant's testimony, after the victim was
    laid on his bed (rather than on the couch in his bedroom, as
    other witnesses testified), the group continued drinking.     The
    defendant then went into his room to watch television.   He sat
    down on the bed next to the victim, who was sleeping and was
    still fully clothed.   After the defendant watched television for
    fifteen or twenty minutes, the victim woke up.    She rolled over
    and said, "Hey, what's up?"    The pair watched television
    together for about twenty minutes.    The victim then invited the
    defendant to rub her back.    He began rubbing her back, and then
    began touching her buttocks.    The victim pressed her buttocks
    against the defendant's genitals, and removed her pants.     The
    defendant licked his finger, reached around, and "touched her
    7
    vagina."    The defendant testified that he touched the "top part"
    of her vagina, that the touch was very brief, that he "felt
    mostly hair," and that he did not feel either "the lips of her
    vagina" or "a wet part of her vagina."
    The defendant then announced that he had to go to the
    bathroom.   When he returned from the bathroom, the victim was on
    the couch in the living room with Tim.    The defendant testified
    that he believed that the victim was interested in having sex,
    and that he too wanted to have sex.   He claimed, however, that
    he never penetrated her vagina, either with his penis or with
    his finger.
    The Commonwealth offered the testimony of two experts that
    contradicted the defendant's account.    The first expert, a
    chemist at the State police crime laboratory, testified that she
    performed testing on three swabs purportedly collected from the
    victim during the "rape kit" examination at the hospital in
    Leominster:   a genital swab, which the expert testified was
    taken from "the outside of the genital area"; a vaginal swab,
    which the expert described as "an intimate swab of the vagina";
    and a peri-anal swab, which the expert testified was taken "from
    the outside of the anal area."    The expert indicated that all of
    the swabs tested negative for semen agellin.   The vaginal and
    genital swabs, however, tested positive for human alpha-amylase,
    commonly known as saliva.
    8
    The second expert was also a chemist at the State police
    crime laboratory.    She testified that she performed DNA analysis
    on the saliva recovered from the vaginal and genital swabs.     She
    indicated that the DNA profile obtained from the vaginal swab
    matched a DNA sample acquired from the defendant.     She testified
    that, based on currently available databases, the DNA profile
    obtained was "not expected to occur more frequently than 1 in
    1,065 Caucasian males, 1 in 936 African-American males, 1 in 561
    Hispanic males, and 1 in 198 Asian males."
    After the defendant's convictions on both indictments, he
    moved for a new trial on the basis of the court room closure
    during the rape shield hearing.      Following an evidentiary
    hearing, the motion judge, who was also the trial judge, denied
    the defendant's motion.      The defendant appealed from his
    convictions and from the denial of his motion for a new trial.
    We granted the defendant's petition for direct appellate review.
    2.   Discussion.    a.    Confrontation clause and common-law
    evidentiary rules.    The Commonwealth did not offer at trial the
    testimony of the nurse at the hospital in Leominster who
    conducted the "rape kit" examination.      Instead, the judge
    permitted the Commonwealth's first expert witness, who was not
    present during the examination and had no apparent connection to
    the hospital at which the swabs were taken, to testify to her
    "understanding" of how the three swabs had been collected.      That
    9
    understanding was apparently based, in part, on information the
    expert learned from the "evidence collection inventory list"
    purportedly completed by the nurse who conducted the "rape kit"
    examination.
    The defendant objected to the admission of the expert's
    testimony "identify[ing] what swab came from where."     Defense
    counsel argued that it was "improper" for the first expert "to
    testify to facts for which [she] [was not] present," that
    defense counsel had "no ability to cross examine" the expert as
    to "how that swab was taken, or whether it was taken with the
    correct procedure," and that the admission of the testimony
    would violate the defendant's right to be confronted with
    witnesses against him under the Sixth Amendment to the United
    States Constitution.   In response, the prosecutor did not assert
    that the nurse was unavailable to testify.   Indeed, she
    indicated that the defense had the nurse on the witness list.
    She further indicated that she would request a continuance to
    secure the nurse's presence if the judge deemed the nurse's
    testimony necessary, but urged the judge to reject the
    defendant's confrontation clause argument.   The judge overruled
    the defendant's objections and allowed the testimony.
    The Sixth Amendment provides that, "[i]n all criminal
    prosecutions, the accused shall enjoy the right . . . to be
    confronted with the witnesses against him . . . ."   Article 12
    10
    of the Massachusetts Declaration of Rights similarly protects a
    criminal defendant's right "to meet the witnesses against him
    face to face."   Although art. 12 "has been interpreted to
    provide a criminal defendant more protection than the Sixth
    Amendment in certain respects, . . . when the question involves
    the relationship between the hearsay rule and its exceptions, on
    the one hand, and the right to confrontation, on the other hand,
    the protection provided by art. 12 is coextensive with the
    guarantees of the Sixth Amendment" (citation and quotation
    omitted).   Commonwealth v. Nardi, 
    452 Mass. 379
    , 388 (2008).
    In Crawford v. Washington, 
    541 U.S. 36
    (2004) (Crawford),
    the United States Supreme Court swept aside its prior approach
    to the confrontation clause, under which the admission of
    hearsay statements against a criminal defendant did not violate
    the confrontation clause so long as the statements "f[ell]
    within a firmly rooted hearsay exception" or showed
    "particularized guarantees of trustworthiness."   Ohio v.
    Roberts, 
    448 U.S. 56
    , 66 (1980).   See 
    id. at 65
    n.7.   Instead,
    the Court held in Crawford, supra at 68, that, "[w]here
    testimonial evidence is at issue, . . . the Sixth Amendment
    demands what the common law required:   unavailability and a
    prior opportunity for cross-examination."
    Although the hearsay evidence at issue in Crawford, supra
    at 38-42, involved statements to police officers, the rule
    11
    articulated in the case called into question the admissibility
    at criminal trials of the results of scientific or forensic
    testing.   See Williams v. Illinois, 
    132 S. Ct. 2221
    (2012);
    Bullcoming v. New Mexico, 
    131 S. Ct. 2705
    (2011); Melendez-Diaz
    v. Massachusetts, 
    557 U.S. 305
    (2009).   During the Ohio v.
    Roberts era of confrontation clause jurisprudence, such results
    had been admitted routinely, even without the opportunity to
    cross-examine the analyst who actually conducted the testing, on
    the theory that the results showed particularized guarantees of
    trustworthiness.   The Court's holding in Crawford eliminated
    that rationale, potentially suggesting that any person who
    played a role in the forensic or scientific testing of evidence
    must be called to testify before the prosecution may present
    expert opinion testimony regarding the evidence.   See Melendez-
    Diaz v. Massachusetts, supra at 332 (Kennedy, J., dissenting).
    This court responded to the difficulty posed by forensic or
    scientific opinion testimony in Commonwealth v. Greineder, 
    464 Mass. 580
    , 593 (Greineder), cert. denied, 
    134 S. Ct. 166
    (2013).
    There we held that, under our common-law evidentiary rules,
    "[e]xpert opinion testimony, even if based on facts and data not
    in evidence, does not violate the right of confrontation,"
    provided that the facts and data "are independently admissible
    and are a permissible basis for an expert to consider in
    formulating an opinion," and that two further conditions are met
    12
    (citation omitted).   
    Id. at 583,
    584.   See Department of Youth
    Servs. v. A Juvenile, 
    398 Mass. 516
    , 527-528 (1986).     First, the
    expert must "not present on direct examination the specific
    information on which he or she relied"; second, the expert
    witness must have the capacity to "be meaningfully cross-
    examined about the reliability of the underlying data."
    Greineder, supra at 583, 595.   We characterized this evidentiary
    rule as "more protective . . . than the [United States] Supreme
    Court would require," and observed that, by fashioning such a
    rule, we "necessarily satisfy the mandates of the Sixth
    Amendment."   
    Id. at 593.
    Our common-law evidentiary rules, therefore, afford the
    defendant a choice.   If the defendant challenges the reliability
    of the expert's underlying data on cross-examination, then
    "basis evidence that is hearsay may become available to the jury
    to evaluate a witness's credibility."    
    Id. at 600.
      By contrast,
    "[i]f a defendant does not open the door on cross-examination to
    the hearsay basis of an expert's opinion, then the jury may
    properly accord less weight to the expert's opinion" due to the
    absence of any testimony providing the basis for the expert's
    opinion.   
    Id. Our common-law
    evidentiary rules decisively resolve this
    case.   In labeling the various swabs and completing the "rape
    kit" "inventory list," the nurse essentially made a series of
    13
    factual statements concerning how the various swabs were
    collected.   The purpose of a "rape kit" is to gather forensic
    evidence for use in a criminal prosecution.    See What is a Rape
    Kit?, Rape, Abuse & Incest National Network,
    https://rainn.org/get-information/sexual-assault-recovery/rape-
    kit [http://perma.cc/R7AN-NJM5].   Therefore, these statements
    were plainly testimonial.   See Commonwealth v. Nardi, 
    452 Mass. 379
    , 394 (2008) (evidence is testimonial where "a reasonable
    person in [the speaker's] position would anticipate his
    [findings and conclusions] being used against the accused in
    investigating and prosecuting a crime" [citation omitted]).      See
    also Ohio v. Clark, 
    135 S. Ct. 2173
    , 2181 (2015) (rejecting
    confrontation clause claim where hearsay statements at issue
    "clearly were not made with the primary purpose of creating
    evidence for [the defendant's] prosecution"); Davis v.
    Washington, 
    547 U.S. 813
    , 822 (2006) (statements to police
    officers are "testimonial when the circumstances objectively
    indicate that there is no . . . ongoing emergency, and that the
    primary purpose of the interrogation is to establish or prove
    past events potentially relevant to later criminal
    prosecution").   And because the Commonwealth's first expert then
    recited these testimonial statements to the jury, they also were
    plainly hearsay.   Although the prosecutor suggested at trial
    that the first expert's recitation was permissible because the
    14
    expert merely was "identif[ying] . . . the hearsay material on
    which . . . she relied," Commonwealth v. Bizanowicz, 
    459 Mass. 400
    , 411 (2011), the expert obviously was "testifying to, and
    asserting the truth of, [the] statements recorded by" the nurse.
    Commonwealth v. Nardi, supra at 392.   Indeed, the very relevancy
    of both experts' testimony was dependent upon the jury accepting
    the nurse's assertions about how and from where the various
    swabs had been collected, relayed through the first expert, for
    the truth of the matter asserted.   Without the nurse's
    statements linking the swabs to the examination performed on the
    victim, the Commonwealth merely would have presented two experts
    who performed various tests on three swabs -- origin unknown --
    and identified on two of them saliva containing DNA that matched
    the defendant's DNA.
    Because the challenged parts of the first expert's
    testimony constituted testimonial hearsay, their admission was
    permissible only if it complied with the rule articulated in
    Greineder.   It did not.
    First, the Greineder rule only allows an expert, on cross-
    examination, to present the specific underlying facts, derived
    from hearsay statements, on which the expert relied.      The
    challenged testimony at issue here, however, came in on direct
    examination.   Indeed, the expert's statements concerning how the
    various swabs had been collected were made near the beginning of
    15
    her testimony, because the import of the test results that she
    later described hinged on those statements.
    Second, the Greineder rule demands that "the expert
    witness . . . can be meaningfully cross-examined about the
    reliability of the underlying data."   Greineder, supra at 595.
    See Commonwealth v. Tassone, 
    468 Mass. 391
    , 392 (2014)
    (Tassone); Commonwealth v. Barbosa, 
    457 Mass. 773
    , 790-791
    (2010), cert. denied, 
    131 S. Ct. 2441
    (2011).     Greineder
    responded to a recurrent situation involving forensic and
    scientific evidence whereby the testifying analyst, in
    formulating her expert opinion, draws upon testing conducted and
    results reached by other analysts, who do not testify.        See
    Greineder, supra at 582.   We held that such testimony is
    permissible provided that the testifying analyst "reviewed the
    nontestifying analyst's work, . . . conducted an independent
    evaluation of the data," and "then expressed her own opinion,
    and did not merely act as a conduit for the opinions of others"
    (quotation and citation omitted).   
    Id. at 595.
    This case presents a significantly different scenario from
    that involved in Greineder or in the United States Supreme
    Court's confrontation clause decisions involving forensic or
    scientific testimony.   The case does not involve a situation
    where a testifying analyst reviewed and then built on the
    findings of a nontestifying analyst in reaching his or her
    16
    expert opinion.   See Department of Youth Servs. v. A 
    Juvenile, 398 Mass. at 527-528
    .    Instead, the hearsay testimony at issue
    here involved the circumstances under which the evidence that
    the testifying expert tested was collected in the first place.
    For the Commonwealth's expert to testify to how the swabs were
    collected from the victim would be akin to allowing a chemist to
    testify to the chemist's "understanding," based on information
    relayed to the chemist in a report drafted by nontestifying
    police officers, that a substance later determined to be cocaine
    had been found in the defendant's trouser pocket.
    Furthermore, the Commonwealth's expert did not "review" or
    make an "independent evaluation" of the nurse's representations
    indicating that a given swab was collected from a particular
    part of the victim's body.     Having no personal knowledge of the
    process by which the swabs were collected, the expert lacked any
    capacity to do so.   Under these circumstances, the expert could
    not be "meaningfully cross-examined about the reliability" of
    the nurse's representations concerning the origins of the swabs.
    
    Greineder, 464 Mass. at 595
    .
    The expert also lacked any capacity to address the chain of
    custody and evidence-handling protocols relevant to the process
    by which the swabs were collected.     See 
    Tassone, 468 Mass. at 401
    .   In Tassone, supra at 394, the Commonwealth's expert
    purportedly had conducted an "independent review" of a DNA
    17
    profile generated by a nontestifying analyst from a swab taken
    from eyeglasses found at the scene of a crime, before concluding
    that that profile matched the defendant's DNA profile.        We
    nevertheless held that, because the testifying expert was "a
    chemist at the State police laboratory," while the DNA profile
    had been generated by Cellmark, an outside laboratory, the
    defendant was deprived of a "meaningful opportunity to cross-
    examine the expert as to the reliability of the underlying facts
    or data."   
    Id. at 400,
    401.    The expert, we observed, "was not
    in a position to confirm that the DNA profile was from the
    eyeglasses swab; she knew only that Cellmark said that it was."
    
    Id. Here, similarly,
    the expert, by her own account, had "no
    idea how [the swabs] were collected."     Consequently, the
    defendant was deprived of any opportunity to question the expert
    about the protocols in place to ensure that the swabs were
    properly collected and labeled.    Simply put, the expert took it
    as given that the swabs were collected as the nurse said they
    were, and then relayed these statements to the jury.     Where the
    only answer that the expert can give to questions concerning the
    chain of custody and evidence-handling protocols is "I don't
    know," a defendant has been deprived of the opportunity for
    meaningful cross-examination.
    We have observed that a meaningful opportunity to cross-
    18
    examine an expert witness regarding chain of custody and
    evidence-handling protocols is especially crucial in relation to
    DNA evidence.   "[W]ith DNA analysis, the testing techniques are
    so reliable and the science so sound that fraud and errors in
    labeling or handling may be the only reasons why an opinion is
    flawed."   Commonwealth v. 
    Barbosa, 457 Mass. at 790
    .   By
    introducing the critical facts concerning how the swabs were
    collected from the victim through the testimony of an expert
    witness who played no role in the collection process whatsoever,
    therefore, the Commonwealth sidestepped the one aspect of the
    forensic evidence presented in this case that was likely most
    "meet for cross-examination."   Bullcoming v. New Mexico, 
    131 S. Ct. 2705
    , 2714 (2011).3
    Because defense counsel objected to the first expert's
    testimony, we must determine "whether the error was
    nonprejudicial, that is whether the error did not influence the
    jury, or had but very slight effect" (quotation and citation
    3
    As a general rule, information concerning how such swabs
    were collected should be admitted through the testimony of a
    person, such as, without limitation, the nurse or the victim,
    who has personal knowledge of the specific "rape kit"
    examination at issue. We leave for another day the question
    whether evidence concerning the collection of the swabs could be
    admitted through the testimony of a person who lacks personal
    knowledge of the specific "rape kit" examination, but who is
    familiar with the general procedures and protocols ordinarily
    employed at a given facility in connection with the conduct of a
    "rape kit" examination.
    19
    omitted).   
    Tassone, 468 Mass. at 403
    .   We conclude that the
    error was prejudicial.   The defendant testified that he licked
    his finger and touched the outside of the victim's vagina, but
    did not penetrate her or come into contact with her vulva or
    labia, as required for a conviction of rape.    See Commonwealth
    v. Donlan, 
    436 Mass. 329
    , 336 (2002).    The victim, by contrast,
    testified that the defendant penetrated her vagina with his
    finger and penis.   Because the expert testified that the
    defendant's saliva was found on "an intimate swab" taken from
    the victim's vagina, the expert's testimony supported the
    victim's account and undermined the defendant's account on a key
    aspect of the Commonwealth's case.4 During closing argument, the
    4
    Because the testimonial hearsay related to a key factual
    dispute, this case differs from those decisions in which we have
    determined that testimonial hearsay was improperly admitted, but
    did not necessitate a new trial. In a few of these cases, the
    defendant objected, but this court concluded that the error was
    harmless beyond a reasonable doubt. See Commonwealth v.
    Whitaker, 
    460 Mass. 409
    , 421-422 (2011); Commonwealth v. Rogers,
    
    459 Mass. 249
    , 264-266, cert. denied, 
    132 S. Ct. 813
    (2011). In
    most, however, the defendant failed to object, causing us to
    review only for a substantial likelihood of a miscarriage of
    justice. Furthermore, in most of these cases, the hearsay
    evidence at issue was an autopsy report, and the cause of death
    was not a contested issue at trial, leading us to affirm despite
    the error. See Commonwealth v. Emeny, 
    463 Mass. 138
    , 144-146
    (2012); Commonwealth v. Phim, 
    462 Mass. 470
    , 479-480 (2012);
    Commonwealth v. Walker, 
    460 Mass. 590
    , 594 n.6 (2011);
    Commonwealth v. Housen, 
    458 Mass. 702
    , 710 (2011); Commonwealth
    v. Mercado, 
    456 Mass. 198
    , 211 (2010); Commonwealth v. Taylor,
    
    455 Mass. 372
    , 377-378 (2009); Commonwealth v. Pena, 
    455 Mass. 1
    , 15 (2009); Commonwealth v. Hensley, 
    454 Mass. 721
    , 732-734
    (2009). Compare Commonwealth v. Durand, 
    457 Mass. 574
    , 582-588
    (2010) (reversing where medical examiner's testimony was
    20
    prosecutor argued that the defendant's testimony reflected an
    effort "to come up with an explanation that's short of
    penetration to get the saliva there," and attacked that
    explanation as inconsistent with the DNA test results, asking,
    "if he just touched her, then how did the saliva get inside her
    vagina?"
    Had the nurse or some other individual with knowledge of
    the process by which the swabs were collected testified, a
    skillful defense attorney could have asked questions aimed at
    challenging the integrity of the evidence-gathering process.
    Defense counsel might have questioned, for instance, whether the
    purportedly "intimate" swab taken from within the victim's
    vagina could have come into contact with the "external" genital
    swab, thereby creating the false impression that the defendant's
    saliva was contained within the victim's vagina.    In responding
    to such questions, the nurse or other individual would have made
    "representations . . . relating to past events and human
    actions" that are "not revealed in raw, machine-produced data."
    See Bullcoming v. New 
    Mexico, 131 S. Ct. at 2714
    .    Such
    questioning has prompted expert witnesses to realize that they
    had made labeling or handling errors, thereby preventing
    convictions based on incorrect or misleading DNA test results.
    improperly admitted, issue was preserved, and "[t]he cause of
    death was very much a disputed issue").
    21
    See Williams v. Illinois, 
    132 S. Ct. 2221
    , 2264 (2012) (Kagan,
    J., dissenting).
    Of course, faced with these questions, the nurse or other
    individual might have provided answers that convinced the jury
    of the reliability and integrity of the evidence-collection
    process.   But that is precisely why our evidentiary rules demand
    an opportunity meaningfully to cross-examine the expert
    regarding chain of custody and evidence-handling protocols.    By
    requiring that opportunity, our common-law evidentiary rules,
    like the confrontation clause itself, "command[] . . . that
    reliability be assessed in a particular manner:   by testing in
    the crucible of cross-examination."   See 
    Crawford, 541 U.S. at 61
    .   Because the process by which the swabs were collected was
    crucial to the Commonwealth's case, and because, as a result of
    the trial judge's error, the defendant was deprived of the
    opportunity for cross-examination regarding that process, we
    conclude that the error was prejudicial and requires a new
    trial.   See 
    Tassone, 468 Mass. at 402-404
    .
    Finally, we do not agree with the Commonwealth's suggestion
    that the defendant waived his confrontation clause claim by
    agreeing to the admission of the unredacted inventory list from
    the defendant's "rape kit" examination.   It is true that, before
    the expert testified, the judge allowed the victim's medical
    records to be marked as exhibits, and these records included the
    22
    inventory list purportedly completed by the nurse who examined
    the victim.   At that time, however, defense counsel observed
    that the medical records had "to be redacted significantly."
    The Commonwealth agreed "there are redactions," and indicated
    that "they won't go to the jury until counsel and I have agreed
    on the redactions."
    Later, when the Commonwealth's expert testified, defense
    counsel made clear that she believed that it would violate the
    confrontation clause for the expert to testify to facts that
    were based in part on information learned from the inventory
    list.   Defense counsel stated that, "if [the prosecutor] wanted
    to put on a case which wouldn't raise questions about
    confrontation, she would have put on the SANE [i.e., the
    nurse] . . . as her witness.   She didn't."   Defense counsel
    further objected that "[t]he only way it's coming in is through
    this expert."   The judge acknowledged that "there could be
    testimony from the person who did the swabbing that 'I took this
    swab from the defendant and the vaginal area of the complaining
    witness,'" but rejected defense counsel's confrontation clause
    argument.   The judge noted defense counsel's continuing
    objection to the evidence.
    Defense counsel later apparently agreed to the admission of
    the medical records, including the inventory list.    Counsel's
    apparent agreement to allow the inventory list to be presented
    23
    to the jury, however, occurred long after the expert had already
    testified -- over defense counsel's strenuous objection -- to
    her "understanding" regarding how the swabs had been collected.
    While the better practice would have been for defense counsel to
    renew her objection to the information concerning the collection
    of the swabs, we do not regard the subsequent admission of the
    unredacted inventory list as a retroactive waiver of the
    objection that defense counsel clearly voiced earlier.
    The inventory list, moreover, did not include the actual
    content regarding how the swabs were collected.    The list, for
    instance, simply indicates "Vaginal Swabs and Smear" with a
    check mark next to it, without describing the swab as an
    "intimate swab of the vagina."    By testifying to her
    "understanding" concerning how the swabs were collected,
    therefore, the Commonwealth's expert testified to underlying
    facts of which she had no personal knowledge, and that went
    beyond the facts later admitted in evidence via the inventory
    list.   For both of these reasons, we reject the Commonwealth's
    waiver argument.
    b.    Public trial right.    At trial, the defendant sought to
    offer evidence of the victim's prior sexual relationship with
    Tim, the first complaint witness.     Defense counsel argued that
    this prior sexual relationship was "directly related to [the
    victim's] motivation to lie."    Defense counsel contended that
    24
    the victim's conduct, in climbing onto the couch where Tim was
    sleeping, constituted a sexual advance.   Tim's apparent
    rejection of that sexual advance, defense counsel claimed, gave
    the victim an incentive to fabricate her rape allegation against
    the defendant.   The Commonwealth countered that the proposed
    testimony was inadmissible under the rape shield law.
    The judge held an evidentiary hearing on the proposed
    testimony.   Before the hearing began, the prosecutor asked that
    the court room be closed, contending that the rape shield
    statute required that the hearing "be done in camera."     The
    judge agreed, and "ask[ed] the court officers, for the purposes
    of this rape shield hearing, to make sure that no member of the
    public comes in for a short period of time."   Defense counsel
    requested "that Mr. Jones's family be allowed to be with him
    during this stage of the trial."   The judge asked, "They would
    be members of the public, no?"   Defense counsel argued that, as
    "with any trial proceeding, [the defendant] should have the
    right to have the support of his family there."   The parties
    then disputed the purpose of the rape shield statute, with the
    defendant contending that its purpose is to guard against
    evidence introduced for the "improper purpose" of arguing that
    the victim's lack of chastity established consent, rather than
    for the more general purpose of "protecting the privacy of the
    alleged victim."   The judge, after noting that the statute
    25
    specifically provides for an "in camera hearing," denied the
    defendant's request and closed the court room.
    Following his conviction, the defendant moved for a new
    trial on the basis of the court room closure during the rape
    shield hearing.    In support of his motion, the defendant
    submitted affidavits from various individuals who indicated that
    they were excluded from the court room during the hearing.     The
    Commonwealth stipulated that potential observers were excluded
    from the hearing, and did not argue that the public trial issue
    was unpreserved.    The motion judge denied the motion, concluding
    that the court room was closed properly during the rape shield
    hearing in accordance with the requirements of G. L. c. 233,
    § 21B, the rape shield law.
    The rape shield law provides:
    "Evidence of the reputation of a victim's sexual
    conduct shall not be admissible in an investigation or
    proceeding before a grand jury or a court of the
    commonwealth for a violation of [certain sexual offense
    statutes]. Evidence of specific instances of a victim's
    sexual conduct in such an investigation or proceeding shall
    not be admissible except evidence of the victim's sexual
    conduct with the defendant or evidence of recent conduct of
    the victim alleged to be the cause of any physical feature,
    characteristic, or condition of the victim; provided,
    however, that such evidence shall be admissible only after
    an in camera hearing on a written motion for admission of
    same and an offer of proof. If, after said hearing, the
    court finds that the weight and relevancy of said evidence
    is sufficient to outweigh its prejudicial effect to the
    victim, the evidence shall be admitted; otherwise not. If
    the proceeding is a trial with jury, said hearing shall be
    held in the absence of the jury. The finding of the court
    shall be in writing and filed but shall not be made
    26
    available to the jury."
    G. L. c. 233, § 21B.   In addition to the express exceptions to
    inadmissibility articulated in the statute, this court has
    determined "that other exceptions may arise under the United
    States Constitution and the Massachusetts Declaration of
    Rights."   Commonwealth v. Mountry, 
    463 Mass. 80
    , 86 (2012).    One
    of these exceptions applies where evidence that otherwise would
    be barred by the statute "is relevant to the question of a
    victim's bias or motive to fabricate."   
    Id. The motion
    judge, who was also the trial judge, rejected
    the defendant's contention "that G. L. c. 233, § 21B[,] allows
    for public attendance at its required 'in camera hearing,'" and
    concluded that this mandatory closure rule was permissible.     We
    agree with the motion judge that the requirement of G. L.
    c. 233, § 21B, for "an in camera hearing" indicates that the
    court room must be closed during the proceeding.    The term "in
    camera" derives from the Latin meaning "in a chamber," and may
    denote a proceeding taken either "[i]n the judge's private
    chambers" or "[i]n the court room with all spectators excluded."
    Black's Law Dictionary 878 (10th ed. 2010).    Under either
    definition, therefore, an "in camera hearing" denotes one from
    which the public is excluded.
    While we agree with the motion judge that the statute
    provides for mandatory closure of the rape shield hearing, we
    27
    conclude that the mandatory closure rule is impermissible.      In
    reaching that conclusion, we emphasize at the outset that we do
    not question the compelling interest underlying the rape shield
    statute.    That statute, like similar statutes in other States,
    was enacted in response to the pervasive practice of attacking a
    victim's testimony that she did not consent to sex with evidence
    of the victim's "lack of chastity."    Commonwealth v. Joyce, 
    382 Mass. 222
    , 227-228, 231 (1981) ("The major innovative thrust of
    the rape-shield statute is found in the first sentence, which
    reverses the common law rule under which evidence of the
    complainant's general reputation for unchastity was
    admissible").   See Berger, Man's Trial, Woman's Tribulation:
    Rape Cases in the Courtroom, 77 Colum. L. Rev. 1, 17 (1977)
    (Berger).   And although "[t]he primary purpose of the statute is
    to prevent a general credibility attack of a victim with
    evidence of his or her promiscuity," Commonwealth v. 
    Mountry, 463 Mass. at 86
    , the statute's requirement for an "in camera
    hearing" on the admissibility of evidence of sexual conduct
    reflects a legitimate interest in guarding against the public
    "revelation of facts that can only smear" a rape victim, and in
    "protecting complainants and encouraging victim cooperation in
    bringing suspected assailants to trial."   See Berger, supra at
    96.
    We also stress the narrowness of our holding:   we do not
    28
    determine that this particular rape shield hearing should have
    been open to the public, much less that all rape shield hearings
    must be open to the public.   Instead, we merely conclude that,
    before a judge may order the court room closed for a rape shield
    hearing, the judge must make a case-by-case determination in
    accordance with the four-prong framework articulated by the
    United States Supreme Court in 
    Waller, 467 U.S. at 48
    , decided
    after the enactment of the rape shield law at issue here.
    The Sixth Amendment, which applies in State court
    proceedings, guarantees to the accused "in all criminal
    proceedings . . . the right to a speedy and public trial."     See
    In re Oliver, 
    333 U.S. 257
    , 267 (1948).   The closing of a
    criminal proceeding to the public also may implicate rights
    guaranteed by the First Amendment to the United States
    Constitution.   See Commonwealth v. Cohen (No. 1), 
    456 Mass. 94
    ,
    106 (2010).   "[T]he explicit Sixth Amendment right of the
    accused," however, "is no less protective of a public trial than
    the implicit First Amendment right of the press and public."
    
    Waller, supra
    at 46.   Because the public trial right is
    constitutionally based, in reviewing an asserted violation of
    the right, the court "exercise[s] its own judgment on the
    ultimate factual as well as legal conclusions" (citation
    omitted).   Commonwealth v. Cohen (No. 1), supra at 105.
    The Sixth Amendment right to a public trial "covers the
    29
    entire trial, including the impaneling of the jury and the
    return of the verdict" (footnote omitted).    6 W.R. LaFave, J.H.
    Israel, N.J. King, & O.S. Kerr, Criminal Procedure § 24.1(a) (3d
    ed. 2007).    See United States v. Sorrentino, 
    175 F.2d 721
    , 722
    (3d Cir. 1949).   Even where the public trial right attaches to a
    given proceeding, however, the right is "not absolute."       Globe
    Newspaper Co. v. Superior Court for the County of Norfolk, 
    457 U.S. 596
    , 606 (1982) (Globe Newspaper Co.).    A court room
    closure may be permissible, provided the party seeking the
    closure satisfies the four-part test articulated in 
    Waller, 467 U.S. at 48
    :   "[1] the party seeking to close the hearing must
    advance an overriding interest that is likely to be prejudiced;
    [2] the closure must be no broader than necessary to protect
    that interest; [3] the trial court must consider reasonable
    alternatives to closing the proceeding; and [4] it must make
    findings adequate to support the closure."
    Neither the United States Supreme Court nor this court has
    articulated a clear test for determining the threshold question
    whether a given proceeding constitutes part of the "trial" for
    purposes of the public trial right.    In 
    Waller, supra
    , the
    United States Supreme Court determined that the public trial
    right attaches to a pretrial suppression hearing.    In reaching
    that conclusion, the Court identified several values that the
    public trial right serves.    
    Id. at 46-47.
      Various United States
    30
    Circuit Courts of Appeals have enumerated these values, and
    turned to them to determine whether the public trial right
    attaches to a given proceeding.
    These courts have determined that the public trial right
    attaches to a given proceeding where recognition of the right
    would serve "1) to ensure a fair trial; 2) to remind the
    prosecutor and judge of their responsibility to the accused and
    the importance of their functions; 3) to encourage witnesses to
    come forward; and 4) to discourage perjury."   Peterson v.
    Williams, 
    85 F.3d 39
    , 43 (2d Cir. 1996).   See United States v.
    Rivera, 
    682 F.3d 1223
    , 1229 (9th Cir. 2012); United States v.
    Perry, 
    479 F.3d 885
    , 890-891 (D.C. Cir. 2007); Braun v. Powell,
    
    227 F.3d 908
    , 918-919 (7th Cir. 2000).   Based on these factors,
    these courts have found violations of the public trial right
    where the court room was closed "during [a] hearing" at which
    "matters of vital importance were discussed and decided."
    United States v. Rivera, supra at 1232 (finding violation of
    public trial right where defendant's family members were
    excluded from sentencing proceedings).   By contrast, courts have
    rejected Sixth Amendment challenges based on court room closures
    during "routine jury administrative matters," United States v.
    Ivester, 
    316 F.3d 955
    , 960 (9th Cir. 2003) (finding no violation
    of public trial right where judge closed court room to address
    jurors' concerns about their safety), or where the closure was
    31
    "so trivial as not to implicate the right to a public trial."
    Carson v. Fischer, 
    421 F.3d 83
    , 92 (2d Cir. 2005) (no violation
    of public trial right where judge excluded defendant's ex-
    mother-in-law from court room during testimony of single
    witness).   See Braun v. Powell, supra at 919 (no violation where
    judge excluded former member of venire from trial); Peterson v.
    Williams, supra at 41 (no violation where judge inadvertently
    closed court room during defendant's testimony, which lasted
    approximately fifteen to twenty minutes).
    A rape shield hearing is neither a routine administrative
    matter nor is it "trivial" to the trial.    On the contrary, a
    rape shield hearing has a far closer kinship to pretrial
    suppression hearings, to which the United States Supreme Court
    decided in Waller that the Sixth Amendment public trial right
    attaches, than to any of the routine administrative matters that
    courts have subsequently determined may be conducted in a closed
    court room.   Like a pretrial suppression hearing, the
    determination emerging from a rape shield hearing often will
    have a critical impact on the trial itself, particularly in
    cases that hinge on the issue of consent.   Additionally, the
    admissibility of evidence otherwise barred under the rape shield
    law hinges on a showing that the evidence fits into one of the
    exceptions to the statute, and that its "weight and
    relevancy . . . is sufficient to outweigh its prejudicial effect
    32
    to the victim."   G. L. c. 233, § 21B.    The outcome of a rape
    shield hearing, then, like that of a pretrial suppression
    hearing, "frequently depends on a resolution of factual
    matters."   
    Waller, 467 U.S. at 47
    .
    Citing a decision of the United States Court of Appeals for
    the First Circuit in United States v. Vazquez-Botet, 
    532 F.3d 37
    , 51-52 (1st Cir. 2008), the Commonwealth contends that the
    rape shield hearing is "more akin to 'question-and-answer' offer
    of proof hearings . . . than to potentially dispositive
    suppression hearings to which the public trial right applies."
    In that decision, however, the United States Court of Appeals
    for the First Circuit expressly "le[ft] open the possibility
    that the public-trial right may apply to some offer-of-proof
    hearings," only "declin[ing] to recognize such a right on facts
    as uncompelling as these."   
    Id. at 52.
      In concluding that the
    public trial right did not attach to the particular offer of
    proof hearing at issue in that case, moreover, the court
    emphasized that the hearing "differed in at least two
    fundamental respects from the categories of non-trial hearings
    to which the Sixth Amendment public-trial right has been held to
    apply in the past . . . . First, the evidence elicited at the
    hearing had already . . . been ruled irrelevant. . . . Second,
    the district court was under no obligation to hold the hearing
    in the first place, but chose to do so for our and the
    33
    defendants' benefit . . . ."   
    Id. Here, by
    contrast, the judge did not hold the rape shield
    hearing solely "in order to create a record" of a relevancy
    decision that it had already made for appellate review.        
    Id. at 45.
      On the contrary, it was only after the rape shield hearing,
    and on the basis of the testimony presented and the arguments
    offered by the attorneys at that hearing, that the judge here
    made his decision regarding the admissibility of the evidence of
    the victim's prior sexual conduct.    Furthermore, the judge had
    no choice whether to hold the hearing.     Rather, the judge was
    obligated, under the rape shield statute, to hold the hearing
    before reaching a decision on the admissibility of evidence
    purportedly barred by the statute.
    In determining that the public trial right attaches to a
    rape shield hearing, we acknowledge that courts of other States
    have reached differing conclusions.     On the one hand, the
    Connecticut Supreme Court has held that a trial judge erred in
    justifying the closure of the court room for a rape shield
    hearing on the basis of a "general reference to the rape shield
    statute," as also occurred here.     State v. Kelly, 
    208 Conn. 365
    ,
    374 (1988).   Instead, the court held that, before closing the
    court room, the trial judge should have made the case-specific
    "findings as required by Waller."    
    Id. See Kelly
    v. Meachum,
    
    950 F. Supp. 461
    , 468 (D. Conn. 1996) (on collateral challenge
    34
    to defendant's conviction, "concur[ring] with the [Connecticut]
    Supreme Court's finding that the trial court improperly closed
    the courtroom at the petitioner's trial in that the trial court
    failed to make any findings adequate to support the closure,"
    but rejecting Connecticut Supreme Court's requirement that
    petitioner prove prejudice to obtain relief for Sixth Amendment
    violation).
    On the other hand, courts in Oregon and North Carolina have
    rejected public trial challenges to statutes mandating the
    closure of court rooms during rape shield hearings.   See State
    v. McNeil, 
    99 N.C. App. 235
    , 242 (1990); State v. MacBale, 
    353 Or. 789
    , 813-815 (2013); State v. Blake, 
    53 Or. App. 906
    , 909-
    920 (1981).   The crux of the reasoning in these decisions is
    that, because a "rape shield" hearing "is a preliminary one and
    is conducted only to exclude from the trial that which is
    irrelevant to the proceeding," and because "[u]nder the rules of
    evidence, that which is irrelevant should not be heard at all,"
    the closure of the court room for the hearing does not violate
    the defendant's Sixth Amendment right to a public trial.     State
    v. Blake, supra at 919.   See State v. MacBale, supra at 814;
    State v. 
    McNeil, supra
    .
    We are not persuaded by the analysis in these decisions.
    First, evidence barred under the rape shield statute does not
    necessarily fail to meet the "minimal standard" of
    35
    "[r]elevancy."   State v. 
    Blake, 53 Or. App. at 919
    .    On the
    contrary, Massachusetts's rape shield statute precludes the
    admission of evidence concerning a victim's past sexual conduct
    unless the evidence fits within the exceptions to the statute
    and the judge finds "that the weight and relevancy of said
    evidence is sufficient to outweigh its prejudicial effect to the
    victim."   G. L. c. 233, § 21B.    The statute, then, contemplates
    situations in which evidence is relevant, but its relevance is
    outweighed by its prejudicial effect to the victim.     Second, the
    rape shield hearing may result in a finding that the weight and
    relevancy of the evidence does outweigh its prejudicial effect,
    and that the evidence consequently may be presented at trial.
    In 
    Waller, 467 U.S. at 43
    , the United States Supreme Court
    observed that, following the petitioners' trial, "the transcript
    of the suppression hearing was released to the public," yet the
    public release of the transcript had no impact on the Court's
    determination that the closure of the court room during the
    hearing violated the petitioners' right to a public trial.
    Similarly, the fact that a defendant "will ultimately have the
    use of all . . . evidence" deemed relevant at the rape shield
    hearing has no bearing on the constitutionality of the court
    room closure during the hearing.     State v. 
    Blake, 53 Or. App. at 919
    .   The subsequent presentation of certain evidence at trial
    cannot "cure" the problem resulting from the mandatory closure
    36
    rule any more than the subsequent release of a pretrial
    suppression hearing transcript could "cure" the closure of the
    hearing.   The notion that the ultimate presentation of evidence
    at trial somehow may retroactively remedy the closure of the
    hearing is particularly misguided because it was the improperly
    closed hearing itself that determined the scope of the evidence
    that could be presented at trial.
    Finally, we discern no support for the assumption that the
    public trial right attaches only to proceedings at which
    relevant evidence is presented.     On the contrary, the United
    States Supreme Court has made clear that the public right
    "extends beyond the actual proof at trial."    
    Waller, 467 U.S. at 44
    .   The right, for instance, encompasses the pretrial jury
    selection process, Presley v. 
    Georgia, 558 U.S. at 213
    ; opening
    statements by counsel, Commonwealth v. Patry, 48 Mass. App.
    Ct. 470, 474 (2000); instructions to the jury, id.; the return
    of the verdict, id.; and posttrial sentencing proceedings,
    United States v. 
    Rivera, 682 F.3d at 1228
    .    At none of these
    proceedings is relevant evidence presented, yet the public trial
    right attaches to all of them because of the values that the
    right serves.   As the United States Supreme Court has explained,
    "the right of access to criminal trials plays a particularly
    significant role in the functioning of the judicial process and
    the government as a whole. . . .    [I]n the broadest terms,
    37
    public access to criminal trials permits the public to
    participate in and serve as a check upon the judicial process --
    an essential component in our structure of self-government."
    Globe Newspaper 
    Co., 457 U.S. at 606
    .
    Courts that have determined that the public trial right
    does not attach to a rape shield proceeding have further
    observed that "a rape victim who is examined about the details
    of her personal sexual background may be less likely to be
    forthcoming if forced to discuss the matter in open court."
    State v. 
    MacBale, 353 Or. at 814
    .   See State v. Blake, 53 Or.
    App. at 920.   That analysis confuses the threshold inquiry into
    whether the public trial right attaches to a rape shield hearing
    at all with the ultimate validity of a decision to close the
    court room during the hearing.   The "public trial guarantee" is
    "one created for the benefit of the defendant," Gannett Co. v.
    DePasquale, 
    443 U.S. 368
    , 380 (1979); it is built on the premise
    that "[t]he knowledge that every criminal trial is subject to
    contemporaneous review in the forum of public opinion is an
    effective restraint on possible abuse of judicial power."     In re
    Oliver, 
    333 U.S. 257
    , 270 (1948).   In light of the important
    role that the public trial guarantee provides in protecting the
    rights of criminal defendants, we decline to conclude that a
    crucial hearing, whose outcome has a significant impact on a
    prosecution, falls outside of the public trial right altogether.
    38
    That conclusion does not mean, however, that we cannot
    consider other interests, including the interest in guarding
    against "harassment and further humiliation of the victim"
    (citation omitted).    Commonwealth v. 
    Joyce, 382 Mass. at 228
    .
    As noted, the public trial right is not absolute, but may give
    way in the face of "an overriding interest."    
    Waller, 467 U.S. at 48
    .    Accordingly, the judge is free to consider, among other
    things, the complainant's privacy interests and the potential
    impact that the public disclosure of intimate details concerning
    a rape victim's sexual history may have on a complainant's
    willingness to come forward.
    Indeed, this court and others have upheld court room
    closures in a variety of contexts where trial judges complied
    with these constitutional requirements.    In Commonwealth v.
    Caldwell, 
    459 Mass. 271
    , 283-284 (2011), for instance, we
    concluded that the trial judge, after making the findings
    required by Waller, properly excluded from the court room
    spectators who threatened a court officer with bodily harm.
    Other courts have concluded that a trial judge, again after
    making the findings required by Waller, properly closed the
    court room during an undercover police officer's testimony
    during a drug trial.   See, e.g., Brown v. Kuhlmann, 
    142 F.3d 529
    , 537-539 (2d Cir. 1998); People v. Jones, 
    96 N.Y.2d 213
    , 220
    (2001).   Similarly, this court has found that, generally, "the
    39
    judge's verification of the validity of" an assertion of the
    privilege against self-incrimination must "be based on
    information provided in open court."     Pixley v. Commonwealth,
    
    453 Mass. 827
    , 833 (2009).    A judge may hold an in camera
    hearing (called a "Martin hearing," see Commonwealth v. Martin,
    
    423 Mass. 496
    [1996]) on the validity of an assertion of the
    right against self-incrimination only after holding an open
    hearing at which the parties are "invite[d] . . . to provide the
    court with information that may shed light on whether the
    witness's testimony . . . could possibly tend to incriminate
    him."   Pixley v. 
    Commonwealth, supra
    .    "Only in those rare
    circumstances where this information is inadequate to allow the
    judge to make an informed determination should the judge conduct
    an in camera Martin hearing with the witness to verify the claim
    of privilege."   
    Id. ("a Martin
    hearing should be conducted only
    as an exception to the general rule that the judge's
    verification of the validity of the privilege be based on
    information provided in open court").     See Commonwealth v.
    Sanders, 
    451 Mass. 290
    , 295–296 (2008).
    Our conclusion that the public trial right attaches to rape
    shield hearings, therefore, does not mean that such hearings
    must be open to the public.   It does not contemplate a major
    change in the practice of court room closures during rape shield
    hearings; the State's overriding interest in protecting the
    40
    privacy rights of rape victims and the absence of any other more
    narrowly tailored means of accommodating that interest may well
    mean that the majority of rape shield proceedings properly are
    closed.    Our conclusion simply means that, in view of the
    importance of the public trial right, before the court room
    properly may be closed during a rape shield procedure, the trial
    judge must conduct an individualized analysis consistent with
    the constitutional requirements set forth in 
    Waller, supra
    .
    The United States Supreme Court's decision in
    Globe Newspaper 
    Co., 457 U.S. at 598
    , is instructive.     That case
    concerned a statute that required the closure of a court room
    during the testimony of child victims of sexual assault.      The
    Commonwealth contended that the statute sought to protect "minor
    victims of sex crimes from further trauma and embarrassment."
    
    Id. at 607.
      The Court agreed that the Commonwealth's asserted
    interest was "a compelling one."    
    Id. The Court
    concluded,
    however, that, "as compelling as that interest is, it does not
    justify a mandatory closure rule," noting that "[a] trial court
    can determine on a case-by-case basis whether closure is
    necessary to protect the welfare of a minor victim."     
    Id. at 607-608.
      The Court further concluded that, because the statute
    "requires closure even if the victim does not seek the exclusion
    of the press and general public," and because the statute did
    not take into account whether "the names of the minor victims
    41
    were already in the public record" or whether the victims would
    "have been willing to testify despite the presence of the
    press," the statute could not "be viewed as a narrowly tailored
    means of accommodating the State's asserted interest."     
    Id. at 608-609.
      See G. L. c. 278, § 16D (b) (1) (requiring judicial
    determination before child witness's testimony may be offered in
    closed court room).
    The same reasoning applies to the rape shield law.      The
    public undoubtedly does have a compelling interest in protecting
    the privacy rights of rape victims and guarding against
    retraumatization through the public disclosure of intimate
    details regarding their past sexual conduct.   Like the similarly
    compelling interest in protecting minor victims of sexual abuse,
    however, the interest in protecting rape victims does not
    require a mandatory closure rule, which commands that the
    proceeding be conducted in camera regardless of the wishes of
    the victim or any other factors that might argue against
    closure.   In sum, the mandatory closure rule cannot be regarded
    as narrowly tailored to the State's compelling interest in
    protecting rape victims against retraumatization and smear
    tactics, because that interest could be served equally well by a
    case-by-case assessment, in accordance with the constitutional
    framework articulated in Waller.   On remand for a new trial,
    therefore, the trial judge may close the rape shield hearing
    42
    only after making the findings as required by Waller.
    Finally, we make a few remarks to clarify the implications
    of our determination regarding the public trial issue for other
    cases.   Here, we are ordering a new trial on the basis of the
    impermissible admission of the first expert's testimony
    concerning how the swabs she tested were collected.     Because the
    trial must be conducted anew, so must the rape shield hearing,
    if the defendant again seeks to offer evidence of the
    complainant's prior sexual interactions with the first complaint
    witness.   In doing so, the judge must conduct the individualized
    analysis required by Waller before ordering a court room
    closure.   While a violation of the public trial right is a
    structural error, the failure to comply with the Waller
    requirements before ordering a court room closure does not,
    standing alone, require a new trial.   
    Waller, 467 U.S. at 49-50
    .
    See Commonwealth v. Cohen (No. 1), 
    456 Mass. 94
    , 118-119 (2010).
    Rather, in Waller itself, the United States Supreme Court, after
    concluding that the suppression hearing was closed improperly,
    held that "the remedy should be appropriate to the violation."
    
    Waller, 467 U.S. at 50
    .   Consequently, the Court required only a
    new suppression hearing, observing that, "[i]f, after a new
    suppression hearing, essentially the same evidence is
    suppressed, a new trial presumably would be a windfall for the
    defendant, and not in the public interest."   
    Id. Based on
    the
    43
    Waller Court's observations, various courts have concluded that,
    where a court room closure could have been justified, but the
    judge failed to comply with the requirement for individualized
    findings under Waller, the proper course is "to remand the
    case . . . for a hearing to reconstruct the circumstances that
    existed at the time of the trial and to determine whether the
    application to close the courtroom was well justified."
    Gonzalez v. Quinones, 
    211 F.3d 735
    , 738 (2d Cir. 2000).    See
    United States v. Galloway, 
    937 F.2d 542
    , 547 (10th Cir. 1991);
    State v. Weber, 
    137 N.H. 193
    , 197 (1993).
    We believe that the same approach is appropriate where a
    trial judge improperly closed a rape shield hearing without
    making the case-specific findings required in Waller.     In such
    cases, assuming the objection to the closure of the hearing was
    properly preserved, and the case is still on direct appeal, the
    proper remedy will be to remand to the trial judge to determine
    whether the circumstances that existed at the time of the trial
    would have warranted the closure of the court room for the rape
    shield hearing.   Even if the judge concludes that the
    circumstances did not warrant the closure of the hearing, the
    result will not necessarily be a new trial.   Rather, the judge
    should then conduct the rape shield hearing anew.   If the new
    rape shield hearing results in a determination regarding the
    admissibility of evidence of prior sexual conduct by the victim
    44
    that is "essentially the same" as the determination that emerged
    from the original hearing, then no new trial is required.       See
    
    Waller, 467 U.S. at 50
    .    A new trial will be necessary as a
    result of our holding, therefore, only if the circumstances that
    existed at the time of the trial did not justify the court room
    closure during the rape shield hearing, and only if the judge's
    decision in the wake of the new rape shield hearing is not
    "essentially the same" as the decision that emerged from the
    original rape shield hearing.
    c.   Remaining arguments.     The defendant offers two
    additional arguments.     Because we have granted a new trial on
    the basis of the expert's improper testimony, we address these
    issues only briefly.
    First, the defendant argues that his rights to a fair
    trial, to confront witnesses against him, and to present a
    defense were violated by the judge's decision to prohibit
    defense counsel from questioning either the victim or Tim about
    their prior sexual contact.     Because this decision was based on
    the testimony and argument presented at the closed rape shield
    hearing, and our remand may result in a new rape shield hearing,
    we do not address the defendant's argument at this time.
    Second, the defendant argues that the judge erred in
    instructing the jury regarding the impact of the defendant's
    voluntary intoxication on whether he "reasonably should have
    45
    known" of the victim's capacity to consent.    In response to a
    jury question regarding the meaning of "reasonably should have
    known," the judge indicated that the phrase denotes "an
    objective rather than subjective standard" that "requires you to
    consider all of the believable evidence in determining
    whether . . . an ordinary, prudent person would have considered
    the complainant too impaired to give consent."    In its brief,
    the Commonwealth acknowledges that the jury instruction was
    inconsistent with this court's subsequent decision in
    Commonwealth v. 
    Mountry, 463 Mass. at 92
    , where we held that the
    "element of knowledge is not purely objective," and that the
    Commonwealth must "prove what the defendant reasonably should
    have known, not what the average reasonable unintoxicated person
    would have known" (quotation omitted).    Because that case was
    decided after the defendant's trial, however, and because the
    new standard it articulates is a common-law rule and is not
    constitutionally compelled, the Commonwealth argues that it
    should be applied only prospectively.    Since we are remanding
    for a new trial, we need not address this question.   At the
    defendant's new trial, the judge should instruct the jury in
    accordance with the new standard articulated in Commonwealth v.
    
    Mountry, supra
    .
    3.   Conclusion.    The defendant's convictions are vacated
    and set aside.    The matter is remanded to the Superior Court for
    46
    a new trial and for other proceedings consistent with this
    opinion.
    So ordered.
    GANTS, C.J. (concurring, with whom Spina, J., joins).       I
    agree with the court that making a determination in accordance
    with Waller v. Georgia, 
    467 U.S. 39
    , 48-50 (1984), is
    constitutionally required before closing a court room to conduct
    a rape shield hearing under G. L. c. 233, § 21B.   Ante at          .
    I also recognize that, because § 21B requires the hearing to be
    conducted "in camera," the public has been excluded from the
    court room without a Waller determination for most, if not all,
    rape shield hearings conducted prior to the issuance of this
    opinion.   Consequently, some may fear that this opinion will
    generate a plethora of motions for a new trial claiming
    structural error as a result of the violation of the public
    trial right.   I write separately to provide some perspective.
    A motion for new trial (or a claim on direct appeal) based
    on the absence of a Waller determination will almost certainly
    be futile unless, as in this case, the defendant objected to the
    closing of the court room at the time of the rape shield
    hearing.   Ante at    .   I doubt that many defendants timely made
    such an objection.   Without doing so, a defendant will be deemed
    to have waived his or her claim of error regarding the closure
    of the court room for such a hearing, and may only claim that
    defense counsel was ineffective for having failed to object.
    See Commonwealth v. Morganti, 
    467 Mass. 96
    , 102-103, cert.
    denied, 
    135 S. Ct. 356
    (2014) ("the right to a public trial may
    2
    be procedurally waived by a failure to lodge a timely objection
    to the offending error," and if waived, "we still may have
    occasion to review that error in the postconviction context of a
    challenge to trial counsel's effectiveness in failing to raise
    the objection").   To prevail, a claim of ineffective assistance
    of counsel would require a finding that a substantial risk of a
    miscarriage of justice arose from the absence of such an
    objection, and under these circumstances it is difficult to
    imagine a case where such a finding would be warranted.    See
    Commonwealth v. LaChance, 
    469 Mass. 854
    , 857-858 (2014).
    In the rare case where a defendant has preserved his or her
    claim of error by objecting to the closure of the court room
    during a rape shield hearing, the remedy the court provides is a
    remand for a posttrial Waller hearing, where the trial judge (or
    another judge, if the trial judge is no longer on the bench)
    will determine whether the closure of the court room would have
    satisfied the constitutional requirements of Waller had the
    judge made a Waller determination at the time of trial.     Ante
    at   .   The court states in its opinion that "the State's
    overriding interest in protecting the privacy rights of rape
    victims and the absence of any other more narrowly tailored
    means of accommodating that interest may well mean that the
    majority of rape shield proceedings properly are closed."     Ante
    at   .   Thus, I expect that few, if any, posttrial Waller
    3
    hearings will lead to a finding that the court room would not
    have been closed had the judge made a Waller determination at
    the time of trial.
    Where there is such a finding, the court makes clear that
    the remedy is a new rape shield hearing with an open court room,
    not a new trial.     Ante at   .   A new trial will be required
    only if the judge determines at the new rape shield hearing that
    significant evidence of prior sexual conduct by the victim,
    which was found inadmissible at the earlier rape shield hearing,
    would be admissible at a new trial.     
    Id. I can
    understand why a
    judge, upon revisiting a rape shield issue, may come to a
    different conclusion regarding the admissibility of evidence of
    the victim's prior sexual conduct, but it is hard to imagine
    that this determination would be materially affected by whether
    the court room was open or closed.
    Consequently, I foresee that very few, if any, defendants
    will receive a new trial as a result of this opinion.     As with
    Waller, the opinion here is not limited to prospective
    application, but its practical impact will be.