The defendant, Michael Reddick, appeals1 from the judgment of conviction, after a jury trial, of robbery in the second degree in violation of General Statutes (Rev. to 1989) § 53a-135,2 and, following a plea of nolo contendere, of being a persistent dangerous felony offender in violation of General Statutes (Rev. to 1989) § 53a-40 (a).3 The defendant claims that the trial court improperly: (1) failed to notify him of the *448contents of the second part of the substitute information charging him with being a persistent dangerous felony offender; (2) with regard to the charge of robbery in the second degree, failed to instruct the jury that it must unanimously agree beyond a reasonable doubt on the same aggravating factor; and (3) denied the defendant’s request to waive his presence at a hearing on his motion to suppress a witness’ photographic identification of him. We affirm the judgment.
The jury reasonably could have found the following facts. On January 24, 1990, Edward Singer and the defendant, both black men, entered a branch office of the Bank of Boston on Orange Avenue in West Haven. After stopping at a counter, Singer and the defendant approached two teller windows that were closed. Singer handed a bank employee, William Murray, a slip of paper. Murray informed the men that he was not a teller. Singer and the defendant then approached the teller window of Sheila Carlquist. Brunilda Lopez, the teller supervisor, was standing behind Carlquist. Lopez had been trained to remain calm and to observe carefully any suspicious activity. Lopez observed that Singer and the defendant were whispering to Carlquist, and that the two men were sweating and acting nervously. Lopez later described Singer to investigating officers as 5 feet 8 inches to 6 feet 2 inches tall, and the defendant as approximately 5 feet 4 inches tall and wearing wide rimmed plastic glasses. The defendant stared at Lopez as she observed both men.
Singer displayed a gun and threatened Carlquist. The defendant then demanded the money in the teller’s drawer. Carlquist gave the money to the defendant, along with a dye pack set to explode if taken from the bank’s premises.4 Singer and the defendant left the *449bank and attempted to flee in a motor vehicle. Lopez saw the dye pack explode, and saw both men escape from the vehicle and flee on foot. Singer was arrested within one hour of the robbery, and subsequently implicated the defendant. Among the evidence recovered at the bank during the police investigation was the slip of paper handed to Murray. The slip of paper had the name “Reddick” printed on its face.
On February 7, 1990, Federal Bureau of Investigation agents located the defendant in a third floor apartment in Hamden. The defendant attempted to avoid arrest by leaping from a window across an alley to the roof of an adjoining building. The defendant was apprehended after a short chase.
I
The defendant first claims that he is entitled to a new trial on the second part of the information, charging him with being a persistent dangerous felony offender, because the clerk failed, in violation of Practice Book § 648, to notify him of the contents of the second part of the information. Practice Book § 648 provides: “Prior to the time the defendant enters a guilty plea or, if the defendant pleads not guilty, prior to the commencement of the trial, the clerk shall notify the defendant, in the absence of the judicial authority, of the contents of the second part of the information. The clerk shall enter on the docket the time and place of the giving of such notification and, where necessary, shall include entry thereof in the judgment file.”5 *450We disagree that the clerk’s failure entitled the defendant to a new trial.
The record in the present case reveals that the defendant repeatedly received actual notice of the persistent dangerous felony offender charge prior to the trial on the underlying charge. On February 5, 1991, the state notified the court at a pretrial hearing, in the presence of the defendant and his attorney, that the defendant was charged with both robbery in the second degree and with being a persistent dangerous felony offender. The defendant himself also indicated to the court that he was fully aware of the contents of the second part of the information. On February 6, 1991, while addressing the court regarding removal of his court appointed attorney, the defendant demonstrated that he was on notice of the persistent dangerous felony offender charge: “Because of the nature of the charges, the fact that the state is pursuing persistent offender here, I believe I have a right to make sure that counsel is prepared . . . the nature of the charges [is] very serious. The state is pursuing persistent offender ... I think that [the state’s attorney] has pursued this very seriously and she has been the one who has presented the issue of persistent offender.” (Emphasis added.) Finally, on February 20, 1991, after the defendant had moved for a bill of particulars, the state replied that there was a long form information supplemented by a second part of the information charging the defendant with being a persistent dangerous felony offender. The defendant’s counsel there*451after requested a copy of the second part of the information from the court.
Despite the defendant’s actual notice of the persistent dangerous felony offender charge prior to trial, he still claims that the clerk’s failure to comply completely with the particular notice provisions of Practice Book § 648 entitles him to a new trial. We note, however, that the defendant, having had actual notice of the contents of the second part of the information, did not contest the persistent dangerous felony offender charge. Instead, he pleaded nolo contendere to it. The general rule is that, absent a statutory exception, a plea of guilty or nolo contendere constitutes a waiver of all defects in the prosecution except those involving the canvass of the plea and the court’s subject matter jurisdiction. See, e.g., McMann v. Richardson, 397 U.S. 759, 90 S. Ct. 1441, 25 L. Ed. 2d 763 (1970); Lott v. United States, 367 U.S. 421, 81 S. Ct. 1563, 6 L. Ed. 2d 940 (1961); State v. Madera, 198 Conn. 92, 97, 503 A.2d 136 (1985). This waiver is fatal to the defendant’s claim and he therefore is not entitled to a new trial on the second part of the information.
II
The defendant next claims that the trial court improperly failed to instruct the jury that, in order to find robbery in the second degree to have been proven beyond a reasonable doubt, it had to agree unanimously on one of the aggravating factors that distinguishes robbery in the second degree from robbery in the third degree. This claim is without merit.
The following facts are relevant to this claim. In instructing the jury as to the elements of robbery in the second degree, the trial court first read the text of § 53a-135 to the jury. After defining robbery generally, the trial court explained that the state’s information alleged both of the aggravating factors, pursuant to *452§ 53a-135, that could elevate the crime of robbery in the third degree to robbery in the second degree.
The trial court then instructed the jury: “[The n]ext element you must find for robbery in the second degree ... is that, one, he is aided by another person actually present, or, two, in the course of the commission of the crime or immediate flight therefrom he or another participant in the crime displays or threatens the use of what he represents by his words or conduct to be a deadly weapon or a dangerous instrument. The state claims that it has proven both of these ways of committing robbery in the second degree. ... If you find, beyond a reasonable doubt, that a robbery was committed by the defendant, and he was, one, aided by another person actually present, who would be Edward Singer, or, two, in the course of the commission of the crime or immediate flight therefrom he or another who participated in the crime displayed or threatened the use of what he represented by his words or conduct to be a deadly weapon or dangerous instrument, you will return a verdict of guilty of robbery in the second degree.” The trial court did not explicitly instruct the jury that it must find unanimously that one of the aggravating factors was proven beyond a reasonable doubt. The trial court, however, did instruct the jury four times that its verdict must be unanimous.
The defendant did not preserve this claim at trial. He contends, however, that he should prevail under State v. Golding, 213 Conn. 233, 567 A.2d 823 (1989). Specifically, the defendant claims that the trial court’s failure to give a specific instruction that the jury must unanimously agree that the same aggravating factor had been proven beyond a reasonable doubt violated his sixth amendment right6 to the unanimous verdict *453of a six member jury.7 See Burch v. Louisiana, 441 U.S. 130, 99 S. Ct. 1623, 60 L. Ed. 2d 96 (1979).
As we have previously held, a specific unanimity charge is not constitutionally required in every case in which criminal liability is premised on alternative subsections of a statute. State v. Famiglietti, 219 Conn. 605, 619-20, 595 A.2d 306 (1991); State v. Jennings, 216 Conn. 647, 662-63, 583 A.2d 915 (1990); see also Schad v. Arizona, 501 U.S. , 111 S. Ct. 2491, 2499, 115 L. Ed. 2d 555 (1991) (“[i]f a State’s courts have determined that certain statutory alternatives are mere means of committing a single offense, rather than independent elements of the crime,” the jury need not indicate on which of the alternatives it has based the defendant’s guilt); United States v. Schiff, 801 F.2d 108, 114-15 (3d Cir. 1986), cert. denied, 480 U.S. 945, 107 S. Ct. 1603, 94 L. Ed. 2d 789 (1987) (a general instruction on unanimity is sufficient to ensure that a unanimous verdict is reached). In State v. Famiglietti, supra, 619, we set forth a “multipartite test to review a trial court’s omission” of a specific unanimity charge. “We first review the instruction that was given to determine whether the trial court has sanctioned a nonunanimous verdict. If such an instruction has not been given, that ends the matter. Even if the instructions at trial can be read to have sanctioned such a nonunanimous verdict, however, we will remand for a new trial only if (1) there is a conceptual distinction between the alternative acts with which the defendant has been charged, and (2) the state has presented evidence to support each alternative act with which the defendant has been charged.” Id., 619-20.
*454In the present case, the defendant contends that, unless the trial court specifically instructs the jury that it must find unanimously that one of the aggravating factors was proven beyond a reasonable doubt, the court has implicitly sanctioned a nonunanimous verdict in violation of his sixth amendment right. This contention, however, directly conflicts with our decision in State v. Anderson, 211 Conn. 18, 35, 557 A.2d 917 (1989), in which we held that the court must inquire into the conceptual distinction between the alternative acts charged, and whether the state had presented evidence to support each alternative act, only if the trial court expressly sanctioned a nonunanimous verdict. See United States v. Bolts, 558 F.2d 316, 326 n.4 (5th Cir. 1977), cert. denied, 434 U.S. 930, 98 S. Ct. 417, 54 L. Ed. 2d 290 (1978). Contrary to the defendant’s contention, the absence of language expressly sanctioning a nonunanimous verdict means that the defendant has not met the first part of the Famiglietti test. Review of the transcripts in this case does not reveal any jury instruction that expressly sanctioned a nonunanimous verdict. Because the trial court did not sanction a nonunanimous verdict we need not address the other parts of the Famiglietti test. Indeed, given the four unanimity instructions actually given by the trial court, we must presume that the jury, “in the absence of a fair indication to the contrary . . . followed the court’s instruction as to the law.” State v. Gabriel, 192 Conn. 405, 416, 473 A.2d 300 (1984). We conclude, therefore, that the defendant cannot prevail on this claim under State v. Golding, supra.
Ill
The defendant’s final claim is that the trial court improperly denied his motion to waive his presence at the hearing on his motion to suppress certain identification testimony of a state’s witness. We disagree.
*455The following facts are relevant to this claim. On the day following the bank robbery, West Haven police presented to Lopez a photographic array consisting of twelve photographs of black males. Lopez immediately and positively identified a photograph of the defendant as that of the shorter man whom she had observed robbing the bank.
Prior to trial, the defendant had filed written motions on two separate occasions8 requesting that “any eyewitness identifications, or any photographic identifications, made of the defendant, be suppressed in any and all proceedings against the defendant, and that any witness making an identification not be permitted to make an in-court identification concerning the defendant, because of the prejudicial method of confrontation between the defendant, and/or his photograph.” (Emphasis added.) Jury voir dire began on February 6, 1991.
By February 20,1991, four jurors had been selected. Before continuing with the voir dire, the defendant made three motions: (1) for a mistrial; (2) “to start the trial anew”; and (3) for a two week continuance. After the court denied these motions, the voir dire continued and the rest of the jurors were selected. The court then considered seven of nine other motions filed by the defendant. By the end of the day, the only motions remaining for the court’s consideration were the defendant’s motion to suppress his prior criminal record, which had been argued but not decided, and his motion to suppress identification, which the court scheduled for the next morning.
*456On the morning of February 21,1991, the court ruled on the motion to suppress the defendant’s prior criminal record. The court then considered the defendant’s motion to suppress identification. The defendant’s counsel then moved, pursuant to Practice Book §§ 9679 and 970 (5)10 to waive the defendant’s presence in the courtroom during the hearing on his motion to suppress identification. The stated basis of the motion to waive the defendant’s presence was that, because Lopez would be coming into the courtroom “[knowing] that she is coming in to identify a black man,” and because the defendant would be “the only black man in this courtroom,” the witness would “have no choice but to point her finger at [the defendant], who is sitting to my left.”11
*457The state objected on the basis that, the jury having been selected, the hearing on the motion was “basically in the course of trial,” that it was an evidentiary motion, and that it was “necessary as part of the motion to establish that the defendant is in fact the person identified. So that his presence is necessary, and I believe that the state also has a right to his presence.”12
The court then clearly indicated its understandings that (1) for practical purposes the motion not only was evidentiary but also essentially a trial proceeding, (2) the witness would be asked in the course of the hearing on the defendant’s motion to identify the defendant in the courtroom, and (3) the court would be required by the defendant’s motion to rule on the admissibility, not only of the out-of-court photographic identification, but also of an in-court identification as well. The court also clearly indicated, therefore, that it was “not going to exclude [the defendant] from the courtroom.”13
*458At that point, the defendant indicated that, although he was “adopting this motion,” he added as a “further basis of [his] claim” that his “intent here would be to attack the procedure that was used in previous identifications. Not an in-court identification right now.”14
The court then responded by (1) indicating its understandings that the defendant’s motion to exclude was addressed to the court’s discretion, and that it was *459required to rule on the written motion to suppress pending before it, and (2) asking the state whether it could proceed on the defendant’s motion to suppress “without having some identification of [the defendant] at counsel table.” When the state responded that “the only way [that it could] conduct this hearing is with the defendant present,” the court acknowledged that it would “have to accept [the state’s position] with this type of a motion.” The court then formally denied the defendant’s motion to exclude.15 The defendant did not subsequently propose, however, any other courtroom procedure that would have lessened the apparent suggestiveness of his being the only black male in the courtroom, such as his sitting away from the defense table or having men of similar physical characteristics present in the courtroom.
The state then called Lopez as its first witness on the motion to suppress. She testified that, on the day after the bank robbery, she had positively identified, from a photographic array, a photograph of the defendant as the shorter of the two black males who had robbed the bank. The state also asked her whether “ based on your observations of the short black male at the bank that day, do you think you would recognize *460him if you saw him again?” (Emphasis added.) After she replied, “I think so,” she made a positive in-court identification of the defendant as “the man who was the short male who robbed the bank that day.” Thereafter, the trial court ruled that the photographic identification of the defendant by Lopez had not been unduly suggestive.16 The trial court denied the defendant’s motion to suppress.
Thereupon, on the same day, the jury was sworn and the state began to present its evidence. Lopez was the first state’s witness. She testified to her positive photographic identification, of the defendant and also made a positive in-court identification of the defendant as the shorter of the two bank robbers.
With this procedural background in mind, we turn to the defendant’s claims regarding the denial of his motion to exclude him from the hearing on his motion to suppress. At the outset, however, it is useful to clarify what this record does not support.
First, the record does not support the assertion, upon which both the defendant and the dissent rely, that the hearing on the defendant’s motion to suppress identification was a pretrial hearing. Although the defendant had made his motions pretrial, the record establishes that for all practical purposes the hearing was held after the trial had begun. For purposes of our speedy trial rules, “ ‘commencement of trial’ means the commencement of the voir dire examination in jury cases . . . Practice Book § 956E; see State v. Suggs, 209 Conn. 733, 749-50, 553 A.2d 1110 (1989); State v. Welch, 25 Conn. App. 270, 273, 594 A.2d 28, reversed in part on other grounds, 224 Conn. 1, 615 A.2d 505 (1992). In this case, the jury had already been selected, and the motion to suppress was the last of the defend*461ant’s pretrial motions to be acted upon before the jury was sworn and evidence began to be presented on the same day. Moreover, it is clear that the trial court, without contradiction by the defendant, considered the motion and the hearing thereon as trial matters involving evidentiary issues.17 The state had argued that “we picked a jury. These are basically in the course of trial. They are evidentiary motions, not legal motions.” The court responded: “[Ujsually there is a very strong protection and insistence that the defendant be present during the trial. And I agree with the state’s attorney. This is an evidentiary-type hearing. This could just as well come up in the middle of the trial as it could as a pretrial motion.”
Second, the record does not support the assertion, also relied upon by the defendant and the dissent, that the scope of the hearing on the defendant’s motion to suppress his identification was limited to the alleged suggestiveness of the out-of-court photographic identification by Lopez and did not include any determination by the trial court of the admissibility of Lopez’s anticipated in-court identification of him as well. The subject of the hearing was the defendant’s two pretrial written motions to suppress, which specifically sought to suppress evidence, not only of the photographic identification, but of any “in-court identification concerning the defendant.” Both motions specifically applied not only to any purported pretrial proceeding, but to “any and all proceedings against the defendant,” including, of course, the presentation of evidence before the jury.
Furthermore, it is clear that all the participants in the hearing—the defendant, the state and the court-understood that one of the principal functions of the *462hearing would be to examine, not only the pretrial photographic identification by Lopez, but her in-court identification of him as well. At the very outset of the argument on his motion to preclude, defense counsel stated that Lopez “is going to come in. She knows that she is coming in to identify a black man. She’d have no choice but to point her finger at [the defendant], who is sitting to my left.” The state echoed this understanding: “[I]t is necessary as part of the motion to establish that the defendant is in fact the person identified. So that his presence is necessary . . . .” The court expressed the same understanding: “Yes. I think the unique circumstances here are a motion [to suppress] identification. . . . And I don’t know how someone can possibly identify anyone without having two things to compare, the individual and somebody else, either in personal observation or photograph or something. I don’t know how it is possible ... to make an identification without having the person present to identify. . . . And the court will consider how the identification is made . . . in order to decide whether or not the identification evidence should come in. But I think this has to be something for me to observe here for me to make a ruling on this in terms of ability or lack of ability of the witness to identify the defendant18 *463... I would be inclined to go along with [the defendant’s motion to exclude on] some other type of motion . . . [but not] with this type of motion. So the motion to exclude the defendant from the courtroom during the proceedings is denied.”19 Consistent with those understandings, during the course of the hearing the state elicited Lopez’s in-court identification of the defendant, without any claim by the defendant that to do so was beyond the scope of his motion to suppress.
On this record, the defendant claims that the trial court’s denial of his motion to waive his presence in the courtroom violated his federal20 and state21 due process rights.22 The defendant also claims that even if the denial of his motion did not result in constitutional error, the trial court abused its discretion under Prac*464tice Book § 970 (5). Specifically, the defendant contends that the trial court abused its discretion because the denial of the defendant’s motion to waive his presence: (1) did not serve any state interest; and (2) created an impermissibly suggestive pretrial identification, and allowed the witness an opportunity to rehearse her subsequent in-court identification of the defendant. These contentions are untenable.
A
It is undisputed that a criminal defendant has a right under the sixth amendment’s confrontation clause to be present at critical stages of his prosecution. Diaz v. United States, 223 U.S. 442, 32 S. Ct. 250, 56 L. Ed. 2d 500 (1912); Lewis v. United States, 146 U.S. 370, 13 S. Ct. 136, 36 L. Ed. 2d 1011 (1892); State v. Gonzalez, 205 Conn. 673, 688, 535 A.2d 345 (1987). The defendant in the present case, however, is unable to cite, nor has our research revealed, a single authority that holds that a defendant has a constitutional right to waive his presence at any stage of the prosecution. Indeed, federal courts have held that a trial court, pursuant to rule 43 of the Federal Rules of Criminal Procedure,23 has the right and the obligation to compel the defendant’s presence at all stages of a trial. United States v. Cannatella, 597 F.2d 27 (2d Cir. 1979); United States v. Moore, 466 F.2d 547, 548 (3d Cir. 1972), cert. denied, 409 U.S. 1111, 93 S. Ct. 920, 34 L. Ed. 2d 692 (1973) (rule 43 does not vest a right of absence in a defendant; fifth amendment right against self-incrimination is not violated by compelling the defendant’s presence). No reported case has held that rule 43 is unconstitutional or violates a defendant’s alleged right to be absent from criminal proceedings.
*465The defendant principally relies on two cases to support his claim that a criminal defendant has a constitutional right to waive his presence: United States v. Johnson, 859 F.2d 1289 (7th Cir. 1988); and Singletary v. United States, 383 A.2d 1064 (D.C. App. 1978). In United States v. Johnson, supra, the Seventh Circuit Court of Appeals held that a criminal defendant need not be present at a pretrial hearing on a motion to suppress a previous photographic identification of the defendant by an eyewitness to the crime. United States v. Johnson, supra, however, does not support the defendant’s position for several reasons. First, the defendant in that case did not move in the trial court to waive his presence at the hearing, but, in fact, was challenging on appeal his absence from the hearing. The court held that his absence from the pretrial hearing did not violate his sixth amendment right to be present at all critical stages of the proceedings. Second, the court reasoned that his presence was not required because the particular hearing was limited to the sole issue of whether the prior photographic identification would be admissible at trial, and did not include the ordinarily necessary inquiry into whether, if the trial court found that the photographic identification was unduly suggestive, the witness’ subsequent in-court identification of the defendant would nonetheless be reliable under the totality of the circumstances. Id., 1292, 1294; see Manson v. Brathwaite, 432 U.S. 98, 114, 97 S. Ct. 2243, 53 L. Ed. 2d 140 (1977) (under totality of circumstances, reliability of an unduly suggestive identification is linchpin of admissibility). The court recognized that if a pretrial suppression hearing is limited to the sole issue of the admissibility of previous photographic identification, the defendant’s presence is not essential. Nowhere in the decision is there any claim by the defendant, or any suggestion by the *466court, that a defendant has a constitutional right to be absent from such a proceeding.
Similarly, the decision of the District of Columbia Court of Appeals in Singletary v. United States, supra, does not support the defendant’s contention that he had a constitutional right to be absent from the suppression hearing. In Singletary, the defendant claimed that the “trial court erred when it refused to allow him to waive his right to be present during the testimony of the [witness] . . . .” Singletary v. United States, supra, 1069-70. The appellate court held that the defendant had a tactical right to waive his right to be present at the pretrial suppression hearing “in a case such as this in which no legitimate interests of the government . . . would have been prejudiced . . . .” Id., 1070.
Nowhere in Singletary, however, does the court indicate the source of this tactical right. In the absence of a full analysis of the source of this right, or reference to any constitutional provision, we do not read Singletary to support the defendant’s claim that he has a constitutional right to waive his presence at such a suppression hearing. Additionally, the Singletary court limited its creation of this “right” to cases in which no interest of the government would be prejudiced by the defendant’s absence.
Nor does the defendant offer any persuasive reason supporting his claim of a constitutional right of absence under the circumstances of this case. Indeed, as our subsequent analysis reveals, if the defendant moves to suppress both the out-of-court identification and any subsequent identification at trial, as the defendant did in this case, the state has a legitimate interest in the presence of the defendant at the hearing on the motion to suppress. We therefore conclude that the defendant had no constitutional right to be absent from the hearing on his motion to suppress.
*467B
Because the defendant has not demonstrated that the denial of his motion to exclude himself from the suppression hearing denied him any constitutional rights, we turn to his additional claim that the trial court abused its discretion in denying his motion pursuant to Practice Book § 970 (5). “In determining whether there has been an abuse of discretion, every reasonable presumption should be given in favor of the correctness of the court’s ruling. . . . Reversal is required only where an abuse of discretion is manifest or where injustice appears to have been done.” (Citation omitted; internal quotation marks omitted.) State v. Holmquist, 173 Conn. 140, 152, 376 A.2d 1111, cert. denied, 434 U.S. 906, 98 S. Ct. 306, 54 L. Ed. 2d 193 (1977).
The defendant first argues that the trial court’s denial of the motion to exclude constituted an abuse of discretion because no legitimate state interest was served by compelling the defendant’s presence at the hearing. We disagree.
In the present case, the defendant moved to suppress both the photographic identification of the defendant and any subsequent in-court identification by the same witness. The defendant’s motion to suppress required the trial court to undertake a two part inquiry in order to ascertain whether the admission at trial of the photographic identification, along with any subsequent in-court identification, violated the defendant’s due process rights. State v. Howard, 221 Conn. 447, 453, 604 A.2d 1294 (1992).
The trial court first was obligated to determine whether the photographic array was unnecessarily suggestive. If the photographic array was found to be unduly suggestive, the court would then be required *468to determine, pursuant to Manson v. Brathwaite, supra, 114, and its progeny; State v. Findlay, 198 Conn. 328, 339-40, 502 A.2d 921, cert. denied, 476 U.S. 1159, 106 S. Ct. 2279, 90 L. Ed. 2d 721 (1986); State v. Perez, 198 Conn. 68, 76, 502 A.2d 368 (1985); State v. Gold, 180 Conn. 619, 655, 431 A.2d 501, cert. denied, 449 U.S. 920, 101 S. Ct. 320, 66 L. Ed. 2d 148 (1980); State v. Piskorski, 177 Conn. 677, 744-45, 419 A.2d 866, cert. denied, 444 U.S. 935, 100 S. Ct. 283, 62 L. Ed. 2d 194 (1979); whether the unduly suggestive identification itself, and any subsequent in-court identification, were nonetheless reliable based on an examination of the totality of the circumstances. State v. Findlay, supra; State v. Perez, supra; State v. Gold, supra; State v. Piskorski, supra.
In proving that a subsequent in-court identification is reliable under the totality of the circumstances, the state is entitled to demonstrate that, even though the out-of-court identification was unnecessarily suggestive, a witness’ in-court identification is “based upon disassociated and independent observation. See United States v. Wade, 388 U.S. 218, 241, 87 S. Ct. 1926, 18 L. Ed. 2d 1149 [1967]. State v. Smith, [165 Conn. 680, 685, 345 A.2d 41 (1974)]. The effort must be to determine whether, before the imprint arising from the unlawful identification procedure, there was already such a definite image in the witness’ mind that he is able to rely on it at trial without much, if any, assistance from its successor. [State v. Smith, supra.]” (Internal quotation marks omitted.) State v. Piskorski, supra, 741-42. The witness’ current degree of certainty regarding whether the defendant is the person she saw at the time of the crime is relevant to that inquiry. State v. Gold, supra, 651.
In the present case, because the defendant had requested that the trial court suppress both the photographic identification and any subsequent identifica*469tion of the defendant at trial, the state had a legitimate interest in the defendant’s presence at the suppression hearing.24 It was entitled to establish that, even if the trial court had determined the photographic identification to have been unnecessarily suggestive, Lopez’s in-court identification was nonetheless untainted by that suggestiveness. State v. Findlay, supra, 339; State v. Gold, supra, 657-58; State v. Piskorski, supra, 744. That is precisely what the state sought to do in the course of the hearing by asking Lopez whether she could identify the defendant based upon her observation of him at the bank at the time of the robbery.
The propriety of the court’s action on the defendant’s motion to exclude must be gauged at the time it made its ruling. Thus, despite the dissent’s argument to the contrary, it is irrelevant that the court ultimately ruled that the photographic identification was not suggestive. That ruling, which made any claim regarding the in-court identification moot, could not have been anticipated when the defendant sought to exclude himself from the courtroom. Thus, when the court made its ruling on the motion to exclude, both the state and the court were entitled to anticipate that a determination might have had to be made regarding whether any unnecessarily suggestive taint was nonetheless overcome by the reliability of the in-court identification based on the independent recollection of Lopez at the time of the robbery. That determination, in turn, required the presence of the defendant in the courtroom.
Indeed, it is clear from this record that, at the time the trial court made its ruling on the defendant’s motion to exclude, the trial court understood that it was faced with a motion to suppress an in-court identification by the witness who was about to testify. Thus, the court *470realized that it would have the two part task of deciding (1) whether the photographic identification had been unnecessarily suggestive and, if it were, (2) whether the in-court identification, sought to be suppressed by the defendant’s motion, was nonetheless admissible because it was not the product of that tainted procedure.
The defendant next argues that the trial court abused its discretion by denying the defendant’s motion to waive his presence because the hearing itself created an impermissibly suggestive confrontation, since the defendant, seated at counsel table, was the only black man in the courtroom. As we have noted, the “manner in which in-court identifications are conducted is not of constitutional magnitude but rests within the sound discretion of the trial court.” State v. Smith, 200 Conn. 465, 470, 512 A.2d 189 (1986). In such cases, the defendant’s “ ‘protection against the obvious suggestiveness in any courtroom identification confrontation is his right to cross-examination’ State v. Tatum, 219 Conn. 721, 731, 595 A.2d 322 (1991); or other practical procedures designed to lessen the degree of suggestiveness. Id., 729; State v. Smith, supra, 471; see United States v. Domina, 784 F.2d 1361, 1368-69 (9th Cir. 1986), cert. denied, 479 U.S. 1038, 107 S. Ct. 893, 93 L. Ed. 2d 845 (1987) (“procedures [can] be used in court to lessen the suggestiveness, such as an in-court line-up, or having the defendant sit somewhere in the courtroom other than the defense table”); United States v. Brown, 699 F.2d 585, 593 (2d Cir. 1983).25
*471During the suppression hearing, however, the defendant did not propose a less suggestive courtroom identification procedure. He did not request that he sit away from the defense table or that men of similar physical characteristics be present in the courtroom. In the absence of any such request, we cannot characterize the trial court’s denial of the motion to waive the defendant’s presence as an abuse of discretion.26 State v. Smith, supra, 472. Similarly, at trial, the defendant did not avail himself of the significant protections that might have lessened any effect of the suppression hearing confrontation, or “rehearsal,” as the defendant characterizes the process. During cross-examination at trial, moreover, the defendant did not ask the witness whether her identification of the defendant during direct examination was prejudiced or affected by her prior identification of the defendant at the pretrial motion to suppress held earlier that day. State v. Tatum, supra, 731. Nor did the defendant argue at trial that the suggestive nature of the hearing on the pretrial motion to suppress identification impermissibly tainted the witness’ identification at trial during direct examination. These considerations add further weight to our conclusion that the trial court’s denial of the defendant’s motion to waive his presence was not an abuse of discretion.
The judgment is affirmed.
In this opinion Peters, C. J., Callahan and Norcott, Js., concurred.
The defendant initially appealed to the Appellate Court. General Statutes §51-199 (b) (3), however, provides: “The following matters shall be taken directly to the supreme court . . . (3) an appeal in any criminal action involving a conviction for a capital felony, class A felony, or other felony, including any persistent offender status, for which the maximum sentence which may be imposed exceeds twenty years . . . .” (Emphasis added.) Although the defendant’s underlying conviction was for robbery in the second degree, a class C felony, his conviction as a persistent dangerous felony offender subjected him to a sentence of imprisonment “for a class A felony.” See General Statutes § 53a-40. Therefore, his appeal should have been brought directly to this court pursuant to § 51-199 (b) (3). Accordingly, we transferred the appeal to this court pursuant to Practice Book § 2003.
General Statutes (Rev. to 1989) § 53a-135 provides: “robbery in the second degree: class c felony, (a) A person is guilty of robbery in the second degree when he commits robbery and (1) he is aided by another person actually present; or (2) in the course of the commission of the crime or of immediate flight therefrom he or another participant in the crime displays or threatens the use of what he represents by his words or conduct to be a deadly weapon or a dangerous instrument.
“(b) Robbery in the second degree is a class C felony.”
General Statutes (Rev. to 1989) § 53a-40 (a) provides in pertinent part: “A persistent dangerous felony offender is a person who (1) stands convicted of manslaughter, arson, kidnapping, sexual assault in the first or third degree, sexual assault in the first or third degree with a firearm, robbery in the first or second degree, or assault in the first degree; and (2) has been, prior to the commission of the present crime, convicted of and imprisoned, under a sentence to a term of imprisonment of more than one year or of death, in this state or in any other state or in a federal correctional institution for any of the following crimes: (A) The crimes enumerated in subdivision (1) . . . .”
A dye pack is an exploding device that is designed to appear as a wad of money but releases red dye.
Practice Book § 619 provides: “former conviction
“Where the information alleges, in addition to the principal offense charged, a former conviction or convictions, such information shall be in two separate parts, each signed by the prosecuting authority. In the first part, the particular offense with which the accused is charged shall be set out, and in the other part the former conviction or convictions shall be alleged. In alleging the former conviction, it is sufficient that the information allege the date when, the town or city where, and the court wherein *450such conviction was obtained and the crime of which the defendant was convicted, all of which may be stated in accordance with the provisions of Sec. 618.”
Practice Book § 647 provides: “taking of plea
“Where the information is in two parts pursuant to Sec. 619 and alleges, in addition to the principal offense charged, a former conviction or convictions, the plea and the election of a method of trial shall first be taken only on the first part of the information.”
The United States Supreme Court has recently stated that a defendant’s right to a unanimous verdict is properly characterized as a due pro*453cess right rather than a sixth amendment right. See Schad v. Arizona, 501 U.S. , 111 S. Ct. 2491, 2498 n.5, 115 L. Ed. 2d 555 (1991).
In light of the defendant’s failure to brief or analyze independently any state constitutional protections, we limit our discussion to the relevant federal constitutional claim. State v. Joly, 219 Conn. 234, 258 n.16, 593 A.2d 96 (1991).
The first motion to suppress was filed on June 14, 1990, and the second was filed on October 20,1990. Although the defendant filed two such motions, because they both sought the same relief we treat them as one motion.
Practice Book § 967 provides: “right of presence
“The defendant has the right to be present at the arraignment, at the time of the plea, at evidentiary hearings, at the trial, and at the sentencing hearing, except as provided in Sec. 966. Whenever present, the defendant shall be seated where he can effectively consult with his counsel and can see and hear the proceedings. An incarcerated defendant or an incarcerated witness shall not be required during the course of a trial to appear in court in the distinctive attire of a prisoner or convict.”
Practice Book § 970 provides in part: “A defendant need not be present in the following situations . . .
“(5) In proceedings in which the defendant otherwise waives his right to be present.”
The defense counsel stated in full at this point: “Your Honor, at this time, I would make a motion to have [the defendant] excluded from the courtroom. I’m basing my claim for submission on the Practice Book Sections 967 and 970.1 have discussed this thoroughly with [the defendant]. [He is in] full agreement with me and would like to waive his presence at this evidentiary hearing.
“Your Honor ... I believe if we turn around, look at everyone in the courtroom, he is obviously the only black man in this courtroom. Miss Lopez is going to come in. She knows that she is coming in to identify a black man. She’d have no choice but to point her finger at [the defendant], who is sitting to my left.
“Put it in [the defendant’s] own words, he is a lame duck sitting over here. We feel as though . . . she obviously mil have no choice but to see [the defendant].
“I may see the defendant, sure . . . Pm sitting right at defense counsel table. He is black. Only black man in the courtroom. Therefore, we respect *457 fully request the court to allow [the defendant] to be seated in the holding area prior or during the .. . proceeding of the suppression motion.
“Again, I’m basing this request on the Practice Booh, specifically Section 967, which deals with the presence of the defendant . . . where presence is not required. And I would specifically state Section 970 subsections . . . [which] specifically states, ‘In proceedings in which the defendant otherwise ‘waives his right, the defendant, through counsel, ’ respectfully ‘waives his right to be present during this proceeding. ’ ” (Emphasis added.)
The state’s attorney responded: “I would object to that, your Honor. 1 believe the state does have a right to the defendant’s presence. This is an evidentiary motion. It is not an argument on a legal matter.
“We are—we picked a jury. These motions are basically in the course of trial. They are evidentiary .motions, not legal motions, and it is necessary as part of the motion to establish that the defendant is in fact the person identified. So that his presence is necessary, and I believe that the state also has a right to his presence. . . . So I would ask the court to require him to be present.” (Emphasis added.)
The court stated: “Yes. I think the unique circumstances here are a motion for identification. . . . [The Practice Book] doesn’t create any abso*458lute right not to be present. In fact, usually there is a very strong protection and insistence that the defendant be present during the trial.
“And I agree with the state’s attorney. This is an evidentiary-type hearing. This could just as well come up in the middle of the trial as it could as a pretrial motion. And I don’t know how someone can possibly identify anyone without having two things to compare, the individual and somebody else, either in personal observation or photograph or something. I don’t know how it is possible in many cases to make an identification without having the person present to identify.
“There are certain safeguards. And the court will consider how the identification is made and all that, and various other matters, in order to decide whether or not the identification evidence should come in. But I think this has to be something for me to observe here for me to make a ruling on this in terms of ability or lack of ability of the witness to identify the defendant. Also how the identification occurs. . . .
“We’ll follow those safeguards. I am not going to try [sic] the defendant waived his right. Despite that fact, I am not going to exclude him from the courtroom. I assume when you do this identification examination, you are going to—before you get into identify the defendant—you are going to get into all the other whatever prior identifications have occurred and how they occurred before we get to the question of identifying him specifically. I assume that’s what you’re going to do.
“[The State]: Yes your Honor.” (Emphasis added.)
The defense counsel stated: “Your Honor, that would probably—;farther basis of my claim—my subsequent—I’m adopting this motion, I believe was [former defense counsel’s] motion—my intent here would be to attack the procedure that was used in previous identifications. Not an in-conrt identification right now.
“And this may or may not be termed an evidentiary proceeding as the state suggests. However, the wording in [Section] 970 subsection 5 states: ‘In proceedings in which the defendant otherwise waives his right.’ This is obviously the proceeding, your Honor. And, again, we would respectfully request [the defendant] be placed in the holding area.” (Emphasis added.)
The court stated: “[The] Rule says ‘He need not be present,’ which indicates discretion on the part of the court as to whether he is present, whether he waives it or not.
“I might be more inclined to go along with it [on] some other type of motion. At some point, is it possible, Miss Galvin [State’s Attorney], for you to conduct this without having some identification of him at counsel table? That possible? . . .
“[The State]: Your Honor ... I don’t think I can properly make up a hearing. I also, if the court is considering doing this, I did indicate earlier I’d like an opportunity—I think there is case law on this topic, but I do feel that the only way I can properly conduct this hearing is with the defendant present.
“The Court: All right, since you have that position, I think I have to accept it with this type of a motion. So the motion to exclude the defendant from the courtroom during the proceedings is denied.” (Emphasis added.)
The defendant does not challenge this ruling on appeal.
Indeed, the defendant had earlier implicitly recognized that the trial had begun, when he moved for a mistrial and “to start the trial anew.”
As support for its theory that the hearing on the motion to suppress only concerned the pretrial photographic identification, the dissent seizes on defense counsel’s sole statement that “my intent here would be to attack the procedure that was used in previous identifications. Not an in-court identification right now.” That theory is untenable. It simply ignores the facts that: (1) the defendant’s two written motions, which were the motions before the court, were squarely to the contrary and sought suppression of Lopez’s in-court identification of the defendant; (2) the statement was contrary to the defendant’s initial recognition that the motion to suppress was aimed at that in-court identification, and was not made until after the court had clearly indicated its position on the motion to exclude; (3) the statement itself was offered, not as a substitute for the written motions, but as a “further basis” for his claim of exclusion, and was made in the context of the defendant’s “adopting this [written] motion [to suppress]”; and (4) after two weeks of jury selection, the evidentiary phase of the trial was *463about to begin as soon as the motion to suppress had been disposed of, and Lopez’s in-court identification of the defendant would obviously be an important part of the state’s case. In context, therefore, the defendant’s motion to absent himself must be appraised within the totality of the motions before the court at trial.
The dissent, relying on some language in the state’s brief that it takes to be a concession by the state regarding the scope of the hearing, states that it is “only the majority of this court that has come up with the theory that the intent at the pretrial hearing was to suppress an in-court identification before the jury.” Even if we were to read the language in question as such a concession, we are not bound by ill advised concessions of any party; see, e.g., State v. Putnoki, 200 Conn. 208, 219 n.6, 510 A.2d 1329 (1986); particularly where, as in this case, the record not only does not support the concession but clearly indicates to the contrary. Justice does not require that we turn a blind eye to the trial record in adjudicating claims on appeal.
Although the defendant cites to the fifth amendment’s due process clause, presumably the intended reference was to the fourteenth amendment’s due process clause. The fourteenth amendment to the United States constitution provides in relevant part: “No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law . . . .”
The constitution of Connecticut, article first, § 8, provides in relevant part: “No person shall be compelled to give evidence against himself, nor be deprived of life, liberty or property without due process of law . . . .”
The defendant offers no separate analysis of his state constitutional claim. Accordingly, we limit our analysis to federal constitutional law.
Rule 43 of the Federal Rules of Criminal Procedure provides in relevant part: “The defendant shall be present at the arraignment ... at every stage of the trial including the impaneling of the jury and the return of the verdict, and at the imposition of sentence, except as otherwise provided by this rule. . . .”
We note that the defendant did not request that the trial court exclude the defendant only if and when the trial court found that the photographic identification was unduly suggestive.
The dissent does not own the corner on the recognition of “the problems of cross-racial identification . . . .’’No failure to recognize those problems is implied, however, by applying the established rules of law regarding eyewitness identifications to all defendants, regardless of their races, and relying primarily on the defendant’s right of cross-examination to ferret out any infirmities arising from a cross-racial identification. That is particularly true in this case, where the trial record belies both the defendant’s claim on appeal and the dissent’s argument in support of that claim.
We note that a trial court’s denial of a request for a less suggestive in-court confrontation between a witness and a defendant will be overturned only upon a showing of an abuse of discretion. See State v. Smith, 200 Conn. 465, 512 A.2d 189 (1986), and cases cited therein.