OPINION OF THE COURT
Typically, in "buy-and-bust” cases, an undercover officer purchases a small quantity of narcotics from the defendant and a second officer thereafter makes the arrest. Where the People show that open-court testimony by the undercover officer during defendant’s trial would jeopardize the undercover’s safety and effectiveness, is it proper for the Trial Judge to close the courtroom during the testimony of that witness?
While we have already answered that question in the affirmative in
People v Martinez
(
Facts
People v Ramos
Defendant was charged with criminal sale of a controlled substance in the third degree for allеgedly selling two vials of "crack” cocaine to undercover officers number 27296 and
*495
number 569 on August 18, 1993. The "buy” took place on the corner of Wyckoff Avenue and Palmetto Street in Brooklyn. The court held a pretrial
Hinton
hearing (
Officer number 27296 testified that he was actively engaged in undercover work in the 104th police precinct in Queens County, which included the Brooklyn site of defendant’s arrest. He had worked in this location several times during the past month аnd expected to return there that day or the next. The officer had, in the past, seen former "buy” subjects outside and around the courthouse, and he had several cases pending in the court, including some in the very same courtroom. He testified that he feared for his safety should his identity as a police officer be revealed and that he took certain measures to protect his anonymity, including riding to court in an unmarked car and using a private entrance to the courthouse. While making undercover buys in the past, the officer further testified, he had been recognized and his safety compromised. No one connected with the defendant or any pending cases, however, had threatened him.
Officer number 569 also worked undercover in the 104th precinct. He had operated there the preceding week and planned to return that evening or the next day. He had, at times, observed individuals from whom he had purchased drugs in an undercover capacity on Queens Boulevard and, like number 27296, had seen the targets of prior undercover investigations in and around the courthouse. Number 569 had approximately a dozen cases pending in the court, and he utilized the same measures specified by number 27296 to conceal his identity upon entering the courthouse. He, too, feared that he would be in danger if his true identity were discovered. Number 569 specifically testified that he had been threatened at gunpoint when a former subject discovered that he was a police officer.
The trial court noted that the facts concerning the two officers were very similar — the officers worked in the same area of Queens, had open cases pending in thе court and had seen "buy” subjects in the proximity of the courthouse. Citing
People v Martinez
(
Instead, with regard to number 27296, the trial court ordered partial closure, allowing any individuals connected with the *496 cases on the court’s calendar to be present unless the prosecutor could establish that those cases involved this undercover officer. Any strangers unconnected with court business were excluded, and a guard was stationed at the door to enforce this order. The court further suggested that the officer could wear dark glasses or don any other disguise. Defense counsel, however, immediately protested that he wished to be notified in advance if the officer intended to conceal his identity.
The trial court found closure warranted during the testimony of undercover number 569. According to the court, the distinguishing factor was that number 569 had in fact been threatened by a former subject. The transcript of both officers’ testimony remained available to the public.
The remaining witnesses, which included a detective, a New York City employee and а police chemist, testified in open court. Defendant was convicted of the sale charge, and the Appellate Division affirmed.
People v Ayala
On September 23, 1993, defendant was arrested as part of a buy-and-büst operation for selling a $10 bag of heroin to an undercover officer at Clinton and East Houston Streets in Manhattan. He was charged with criminal sale of a controlled substance in the third degree. The People sought to close the courtroom during the officer’s testimony.
The undercover officer testified at the Hinton hearing that he had been working in the Manhattan South Narcotics and Guns Unit for the рast 21 months. He was currently active in the 5th, 7th and 9th precincts, where he had operated in the past two weeks and expected to return the following week. The 5th precinct included the courthouse and the 9th encompassed the site of defendant’s buy and bust. The officer had 15 to 20 ongoing investigations in these three precincts.
The officer claimed that it would jeopardize his safety and impede his effectiveness should his name or identity be made public. Although he had previously been threatened in front of the courthouse by a defendant in an unrelatеd case, he had not received any threats from anyone connected to this case.
The trial court ordered the courtroom closed during the witness’ testimony, pointing out that he was presently active in the same location where the arrest occurred and had 15-20 active cases in that area. In reaching this conclusion, the court noted that the officer had entered the courtroom through the Judge’s private entrance. Defense counsel never suggested any *497 alternatives to closing the courtroom, nor did the court exprеssly consider any. As in Ramos, the People did not seek to suppress the minutes of the officer’s testimony.
The courtroom remained open during the testimony of the remaining prosecution witnesses — three police officers and a police chemist. Defendant was convicted, and the Appellate Division affirmed.
Discussion
A criminal defendant’s right to a public trial (US Const 6th Amend; Civil Rights Law § 12; Judiciary Law § 4), though fundamental, is not absolute. Rather, trial courts possess "inherent discretionary power” to exclude members of the public from the courtroom
(People v Hinton,
In
Waller v Georgia
(
"[T]he party seeking to close the [proceeding] must advance an overriding interest that is likely to be prejudiced, the closure must be no broader than necessary to protect that interest, the trial court must consider reasonable alternatives to closing the proceeding, and it must make findings adequate to support the closure.”
Defendants here urge that the People failed to establish a sufficient likelihood of prejudice to an overriding interest to warrant closing the courtroom during the testimony of the undercover officers. Even if this initial requirement were satisfied, the parties raise the additional question whether the trial courts adequately fulfilled their duty under Waller to consider alternatives to excluding the public. We consider еach contention in turn.
Likelihood of Prejudice to an Overriding Interest
The essential first step is a sufficient trial record to establish a substantial probability of prejudice to an overriding interest *498 in the event of open-court testimony. Clearly in buy-and-bust cases that requires more than conclusory assertions that the officer remains an active undercover and fears for his or her safety.
Analysis begins with our decision in
People v Martinez
(
Protecting the safety of law enforcement officers, as a general matter, unquestionably constitutes a compelling interest. What we recognized in
Martinez
was that the mere possibility that this safety interest might be compromised by open-court testimony does not justify abridgement of a defendant’s constitutional right to a public trial. The Supreme Court has made clear that the proponent of closure must establish a "substantial probability” that the articulated interest will be prejudiced by an open courtroom
(see, Press-Enterprise Co. v Superior Ct.,
We therefore .held that the People’s "perfunctory showing” in
Martinez
that the officer continued to operate undercover "in the Bronx area” failed to establish a sufficient likelihood of harm to satisfy the first prong of
Waller.
By contrast, the People’s showing was adequate in
People v Pearson,
the companion case to
Martinez.
There, where the officer testified that she continued to function daily at the location of defendant’s arrest, which was readily accessible from the courthouse, the trial court’s conclusion that open-court testimony would endanger the witness’ safety was not an abuse of discretion
(id., habeas corpus denied sub nom. Pearson v
*499
James,
No. 94 Civ 1499 [SD NY, Oct. 20, 1995],
revd
Applying these principles to the two cases now before us, the facts were sufficient to establish a substantial probability that the People’s interests — protecting the undercover officers’ safety and effectiveness — would be prejudiced by their testimony in open court. In
Ramos,
both officers had observed former "buy” subjeсts in and around the courthouse and had several other cases pending before the court. Indeed, officer number 27296 had cases pending in the very same courtroom
(cf., People v Hinton,
Both officers, moreover, had recently worked undercover in the same precinct where defendant was arrested and expectеd to . resume undercover operations there within a day. Finally, their efforts to conceal their identities upon entering the courthouse bolstered the claims that they feared being recognized as police officers
(compare, People v Cordero,
The factual showing in Ayala, however, presents a closer question. There, the undercovеr officer simply identified certain precincts in which he was recently active and expected to return imminently. These included the precinct where he purchased drugs from the defendant and the precinct within which the courthouse was located. The officer was thus unable *500 to pinpoint his continued area of operations as particularly as the officer in Pearson, who had identified a specific Manhattan corner.
Nevertheless, the officer’s designation of certain police precincts was narrower than the geographically vague reference to "the Bronx area” dеemed insufficient in Martinez. Police officers cannot be expected always to have advance notice of the precise street corner to which they will be assigned, and here the officer’s specification of certain precincts was akin to identifying the particular neighborhoods in which he continued to be active. Since these included both the neighborhood of defendant’s drug activity and the neighborhood of the courthouse, a sufficient link was made between testifying openly in defendant’s case and being recognized by residents of those neighborhoods in which the officer worked undercover. That the officer used a private entrance to the courtroom further confirmed his claim that he feared being identified. On balance, then, the trial court did not abuse its discretion in concluding that open-court testimony would likely compromise the officer’s safety and effectiveness.
Having concluded that Waller’s first prong was satisfied, we turn to the obligation of trial courts to consider alternatives to excluding the public during the testimony of undercover officers.
Alternatives to Closure
Waller
requires the trial court to "consider reasonable alternatives to closing the proceeding.” The United States Court of Appeals for the Second Circuit has concluded that this imposes an affirmative duty on trial courts to raise alternatives
sua sponte
and place their consideration of them on the record
(see, Ayala v Speckard,
*501
Waller
derived from the standards articulated 13 years ago by the Supreme Court in
Press-Enterprise Co. v Superior Ct. of Cal.
(
"The presumption of openness may be overcome only by an overriding interest based on findings that closure is essential to preserve higher values and is narrowly tailored to serve that interest. The interest is to be articulated along with findings specific enough that a reviewing court can determine whether the closure order was properly entered” (id., at 510).
The Court further explained that "[a]bsent consideration of alternatives to closure, the trial court could not constitutionally close the voir dire” (id., at 511). Specifically,.the trial court could have "minimize[d] the risk of unnecessary closure” by keeping the proceedings open but allowing jurors to request in camera questioning for sensitive subject matter (id., at 512-513). Likewise, before suppressing the entire transcript, the court could havе "consider[ed] whether [it] could disclose the substance of the sensitive answers while preserving the anonymity of the jurors involved” (id., at 513). Under these circumstances, closure violated the First Amendment.
Four months after
Press-Enterprise I,
the Supreme Court concluded in
Waller
that "the explicit Sixth Amendment right of the accused is no less protective of a public trial than the implicit First Amendment right of the press and public” (
*502 Applying that test, the Court deemed the closure in Waller improper. The People had sought to exclude the public from the defendant’s hearing on his motion to suppress wiretaps and other seized evidence, because the wiretap information would become inadmissible under State statute if published. The Supreme Court explained that the trial court’s findings did not justify its decision to close all seven days of the hearing, when the wiretap tapes lasted only two and one-half hours. In particular, "[t]he court did not consider alternatives to immediate closure of the entire hearing” such as "directing the government to provide more detail about its need for closure * * * and closing only those parts of the hearing that jeopаrdized the interests advanced” (id., at 48-49 [emphasis added]).
Just two years later, in
Press-Enterprise Co. v Superior Ct.
(
Relying on these precedents, the Second Circuit recently held in
Ayala v Speckard
(
We agree that these principles require trial courts, before excluding the public, to consider whether something short of
*503
complete closure would protect the "overriding interest” at stake. Indeed,
Waller
itself mandates that the trial court
"must
consider reasonable alternatives to closing the proceеding” (
Tellingly, in Waller itself the record patently lacked facts sufficient to justify closing the entire seven-day suppression hearing. Only a small portion of the hearing involved the sensitive information that the government — the proponent of closure — sought to shield from the public, and no link whatsoever was made between the government’s interest in confidentiality and the remainder of the proceeding. In light of this facial record deficiency, the trial court’s overly broad closure order could not be upheld without some explanation for its failure to limit closure to the sensitive portions of the proceeding.
Likewise, in
Press-Enterprise I,
the proponent of closure (the government) failed to adduce adequate record facts to support the conclusion that the entire voir dire proceeding would involve sensitive juror questioning. The trial court nonetheless made no effort to limit closure to those portions of the proceeding comprising sensitive subject matter. And in
Press-Enterprise II,
as well, the Supreme Court indicated that it was concerned about the excessive breadth of the closure, noting that "closure of an entire 41-day proceeding would rarely be warranted” and that the trial court had failed to consider "alternatives short of complete closure” (
Thus, in Press-Enterprise I, Waller and Press-Enterprise II, the records lacked minimally sufficient facts to establish that the.portions of the proceedings subject to closure would even implicate the interests sought to be protеcted. Because only those parts of the proceedings that compromised the interests advanced could be closed, the need to restrict closure further was apparent from the record. The obligation to consider "alternatives” to accomplish this was inherent in the courts’ duty to ensure that closure be narrowly tailored.
Importantly, these cases did not address application of the
Waller
test where the record makes no mention of alternatives but is otherwise sufficient to establish the need to close the particular proceeding
(see also, Matter of Associated Press v
*504
Bell,
Furthermore, the question as to who is responsible for enumerating desirable alternativеs to closure was not before the
Waller
Court. Squarely faced with that question now, we conclude that, where the factual record permits closure and the closure is not facially overbroad, the party opposed to closing the proceeding must alert the court to any álternative procedures that allegedly would equally preserve the interest
(see, Gannett Co. v DePasquale,
This comports with our holding in
Pearson,
where we rejected the defendant’s argument that the trial court erred in failing to consider, on its own, certain alternatives to closing the courtroom during the undercover officer’s testimony, such as stationing a guard at the door to screen spectators, asking the defendant for particular family members he would like present or having the officer testify from behind a screen
(see,
We concluded that, "on the present record,” the court did not err in failing to explore alternatives to closure
explicitly
(
Any other rule would place an impractical — if not impossible — burden on trial courts, particularly in buy-and-bust cases. Even if the court were to hold a separate heаring on the issue, or itself consider and reject some alternatives to closing the proceeding, a defendant on appeal could likely always conjure up yet another method of concealing the witness’s identity that the court overlooked. Under these circumstances, placing the onus wholly on trial courts would provide an incentive for defendants to remain silent
(see, Pearson v James,
This is especially true where, as in Pearson and buy-and-bust cases generally, the alternative measures suggested by defendants for the first time on appeal — a disguise, a partition, a guard stationed at the door to sсreen each prospective spectator — are potentially prejudicial to the defendant. Any device used to conceal the witness’s appearance threatens defendant’s confrontation rights and also suggests to the jury that the defendant (or the defendant’s family) is dangerous, while conducting a hearing with regard to each individual who seeks to enter the courtroom could become unduly disruptive. These procedures, therefore, might not be considered "reasonable” by the trial court or the particular defendant, аnd their imposition sua sponte could raise other fair trial concerns.
In light of these considerations, we adhere to our holding in
Pearson
and conclude that the trial courts in the instant cases did not breach their duty to consider reasonable alternatives to closing the courtroom. Both records were sufficient to establish that any open-court testimony by the undercover officers would jeopardize their safety and effectiveness, and the closure did not extend beyond the live testimony of the witnesses at risk. Neither defendant, moreover, mentioned particular alternatives he was willing to adopt. To the сontrary, when the court in
Ramos
suggested, on its own, alternative methods of concealing the witness’s identity, counsel voiced immediate concern. Finally, no mention was made of specific individuals the defendants wished to attend
(see, People v Nieves,
*506
Our holding today, however, by no means constitutes a green light for closing courtrooms in all buy-and-bust cases, and we condemn the allegedly routine practice of closing the courtroom during the testimony of undercover officers
(see, Ayala v Speckard,
We therefore stress that defendants’ Sixth Amendment rights must not be lightly cast aside simply because the People claim that an undercover officer’s safety or effectiveness is at risk, and trial courts must vigilantly ensure that Waller’s demanding first prong is satisfied before closing a courtroom. Furthermore, because the undercover officer generally constitutes the primary witness against the defendant in buy-and-bust cases, we reiterate that it is "surely the better practice” for trial courts to explore the feasibility of possible alternatives to closing thе courtroom with counsel on the record, even where it is not mandated
(People v Martinez,
Accordingly, in each case the order of the Appellate Division should be affirmed.
Judges Titone, Bellacosa, Smith, Levine, Ciparick and Wesley concur.
In People v Ramos: On review of submissions pursuant to section 500.4 of the Rules of the Court of Appeals (22 NYCRR 500.4), order affirmed.
In People v Ayala: Order affirmed.
Notes
. The People contend that a lеss demanding standard applies when the courtroom is partially closed and that, therefore, they needed to show only a "substantial reason” for the partial closure ordered during the testimony of officer number 27296 (see,
e.g., Woods v Kuhlmann,
977 F2d 74, 76 [2d Cir 1992];
Douglas v Wainwright,
739 F2d 531 [11th Cir 1984],
cert denied
. Although the Second Circuit has followed
Ayala
in
Pearson v James
(
. Unlike the Sixth Amendment guarantee of a public trial, which is for the benefit of the defendant (see,
Gannett Co. v DePasquale,
