IRELAND, J.

In 2003, an Essex County jury convicted the defendant of murder in the first degree. The defendant appealed. He argues that the trial judge erred by failing specifically to inquire of the venire their understanding of the presumption of innocence pursuant to G.L. c. 234, § 28, by allowing a portion of a witness's grand jury testimony to be read to the jury for substantive purposes, and by instructing the jury on consciousness of guilt. He also argues that his counsel was ineffective for failing to move for the revocation of a witness's order of immunity, and asks us to reverse his conviction pursuant to G.L. c. 278, § 33E. Because we conclude that there are no errors requiring reversal of his conviction and discern no reason to exercise our power under G.L. c. 278, § 33E, we affirm the defendant's conviction.

Facts and procedure. We recite the facts the jury could have found, reserving certain details for our discussion of the issues raised.

The evidence against the defendant was introduced through the testimony of Miguel Rodriguez and Javier Laboy. Both had been gang members, had extensive criminal records, and had cooperation agreements with the Commonwealth.

In the late evening of October 28, 2000, the victim was driving around Lawrence with Rodriguez. The pair decided to attend a Halloween party at a home on Washington Street. At about midnight, as the victim pulled his car up in front of the house, the defendant hit the back of the car and said to Rodriguez, "Step out of the car. Let's knuckle up." Rodriguez got out of the car. At first he thought the defendant wanted to fight, but then realized that the defendant was joking.

He and the defendant spoke. The defendant then asked Rodriguez what he was doing with the victim, stating, "Take [the victim] out of here before I blast him." Rodriguez got back in the car and told the victim to "take off." Rodriguez saw the defendant put his arm through the car's window and heard three shots. The mortally wounded victim drove away.

Rodriguez noticed that the victim was wounded and asked him to pull the car over so that he could drive the victim to a hospital. The victim said that he would be all right, but within a short distance, he said, "I'm dead," and fell over onto Rodriguez's lap. Rodriguez gained control of the car and stopped it. After trying and failing to get the victim out of the driver's side of the car and into its back seat, he flagged down a police cruiser.

The victim had been shot twice in the left arm. One of the bullets went through his arm into his chest. The victim died at a hospital of a gunshot wound to the abdominal aorta, which caused hemorrhaging. Two bullets were recovered from the victim, one from his left arm and one from the muscles in his abdominal wall. No gun was ever found.

In the meantime, Laboy had been at the Halloween party and had seen the defendant arguing with the victim and Rodriguez. He heard shots and ran out of the house and across the street to his automobile. As he was about to drive away, the defendant asked him for a ride. Once in the vehicle, Laboy asked the defendant what had happened. The defendant stated, "I just shot somebody, can you get me out of here." The defendant also asked Laboy to take him "out of town." Laboy refused and instead took the defendant to a home on Front Street. Discussion. 1. Presumption of innocence inquiry. The defendant argues that the judge erred when, during the jury empanelment process, he failed to question potential jurors specifically about the presumption of innocence to which a defendant is entitled. At trial, defense counsel did not object to this omission and thus we review it to determine whether there was a substantial likelihood of a miscarriage of justice. See Commonwealth v. Vinton, 432 Mass. 180, 188 (2000); Commonwealth v. Barrows, 391 Mass. 781, 783-784 (1984).

A defendant is entitled to a fair trial. See Commonwealth v. Graves, 363 Mass. 863, 872-873 (1973). Subsumed in that right is a right to a trial by a fair and impartial jury. Commonwealth v. Susi, 394 Mass. 784, 786 (1985). See Irwin v. Dowd, 366 U.S. 717, 722 (1961) (right to fair and impartial jury essential to due process). The United States Constitution does not require that specific questions be asked of a venire for purposes of determining their impartiality. Morgan v. Illinois, 504 U.S. 719, 729-730 (1992). But see Commonwealth v. Hunter, 427 Mass. 651, 654 n. 5 (1998); Commonwealth v. Ramirez, 407 Mass. 553, 554-556 (1990) (discussing questioning jurors about racial prejudice).

States are free to "allow or require questions not demanded by the Constitution." Ristaino v. Ross, 424 U.S. 589, 597 n. 9 (1976). The Legislature set forth such questions in G.L. c. 234, § 28.

"The first paragraph of G.L. c. 234, § 28, requires a judge, on request, to examine each prospective juror 'to learn whether he is related to either party or has any interest in the case, or has expressed or formed an opinion, or is sensible of any bias or prejudice, therein. . . . In a criminal case such examination shall include questions designed to learn whether such juror understands that a defendant is presumed innocent until proven guilty, that the Commonwealth has the burden of proving guilt beyond a reasonable doubt, and that the defendant need not present evidence in his behalf" (emphasis added).

Commonwealth v. Lopes, 440 Mass. 731, 736 n. 8 (2004). See Commonwealth v. Gordon, 422 Mass. 816, 822-823 (1996) (referring to G.L. c. 234, § 28, as "legislative objective" to make sure jury understand presumption of innocence, Commonwealth's burden of proof, and that defendant does not have to present evidence in his behalf).

If a motion is filed, it is mandatory that a judge inquire into the subjects set forth in § 28. Commonwealth v. Sheline, 391 Mass. 279, 290 (1984). See Commonwealth v. Gordon, supra. However, no irregularity in the empanelment of jurors is sufficient to overturn a verdict unless an objection is made before the verdict or unless the defendant demonstrates injury from the error. G.L. c. 234, § 32. See Commonwealth v. Campbell, 394 Mass. 77, 84 (1985) (defendant must show some injury due to irregularity during empanelment); Commonwealth v. Fudge, 20 Mass. App. Ct. 382, 388-389 (1985), and cases cited, quoting Brooks v. Glidden, 329 Mass. 704, 708 (1953) (failure to object under G.L. c. 234, § 28, "is a waiver and constitutes a mere irregularity" unless prejudice is shown). See also Commonwealth v. Barrows, supra (reviewing failure to object to jury empanelment under miscarriage of justice standard); Commonwealth v. MacDonald, 368 Mass. 395, 400 (1975) (failure timely to object to error in jury empanelment constitutes waiver).

Here, before the empanelment process began, the judge stated that the defendant denied the Commonwealth's allegations against him and that he had asked to have a trial so that a jury could determine whether the Commonwealth could prove the charges against him beyond a reasonable doubt. He told potential jurors that he was going to ask them questions because he had to be sure that the defendant had a jury capable of deciding the case only on the evidence. He introduced the parties and read the list of potential witnesses. He then asked the venire, inter alia, whether they knew anyone whose name he had read, whether they had any bias toward any participant in the case, whether they had a bias concerning the merits of the case, and whether they had formed an opinion about the case. He stated that the entire burden of proof was on the Commonwealth and that the defendant need not testify, introduce any evidence, or make any argument concerning the charges against him. He did not specifically state that the defendant is presumed innocent.

The judge then began an individual voir dire of the potential jurors who had responded to the initial questions. Some of them were excused. The judge told the remaining venire that he would conduct a second round of questions individually, reiterated that the goal was to find an impartial jury, and told them not to discuss the charge among themselves so as not to compromise the level of impartiality they had achieved up to that point. They also were told in advance the issues about which they would be questioned at the individual voir dire. One of the questions was whether the potential juror could decide the case based only on the evidence.

The defendant identifies no specific injury in his challenge pursuant to G.L. c. 234, § 28, as required by G.L. c. 234, § 32. Instead he argues that this court has impliedly held that a judge has no discretion not to ask a question concerning the presumption of innocence. Commonwealth v. Keohane, 444 Mass. 563, 572 (2005). The defendant's reliance on the Keohane case is not apt, because a presumption of innocence inquiry was not at issue in that case. He cites no other authority in support of his argument, and while it is unclear whether the defendant is arguing that a judge must use the words "presumption of innocence" or just inquire into the topic, as discussed, where a defendant requests it, it is mandatory that a judge inquire into the "subjects" set forth in § 28. Commonwealth v. Sheline, 391 Mass. 279, 290 (1984).

Even assuming that the judge's omission of a question concerning the presumption of innocence was error, there was no substantial likelihood of a miscarriage of justice. The presumption of innocence is closely tied to the State's burden of proof beyond a reasonable doubt. As this court stated in Commonwealth v. Boyd, 367 Mass. 169, 188 (1975), quoting Commonwealth v. DeFrancesco, 248 Mass. 9, 13 (1924), "[t]he presumption of innocence serves as a focus on the prosecutor's burden of producing evidence of guilt and persuading the jury of the guilt beyond a reasonable doubt. . . . Its function is to emphasize to the jury that 'the finding of an indictment by the grand jury . . . [is] not to be regarded as . . . [a circumstance] tending to criminate the defendant or creating against him unfavorable impressions, and that he is not to be found guilty upon suspicion or conjecture but only upon evidence produced in court.'" Here, the judge stated both the Commonwealth's burden and the fact that the defendant did not have an obligation to present evidence or even argue against the charges. The judge asked other questions designed to make sure that the jury were impartial, including his question during the individual voir dire concerning whether the potential jurors could decide the case solely on the evidence. See Commonwealth v. Blanchette, 409 Mass. 99, 105 (1991), quoting Commonwealth v. Drayton, 386 Mass. 39, 46 (1982) (even in final jury charge, "judges need not give any particular content to the phrase 'presumption of innocence,' if the instructions make clear that the indictment does not imply guilt").

Moreover, in his final instructions to the jury, the judge, inter alia, reiterated the Commonwealth's burden to prove the defendant's guilt beyond a reasonable doubt, explained that it meant that the defendant received every presumption of being not guilty, and stated that the defendant was presumed innocent throughout the trial.

In these circumstances, where the defendant has not demonstrated that he was injured by the judge's omission, G.L. c. 234, § 32; where the judge's initial remarks to the jury included the Commonwealth's burden to prove the defendant guilty beyond a reasonable doubt; and where the judge asked whether the potential jurors could decide the case based solely on the evidence, there was no substantial likelihood that the jury did not understand the presumption of innocence. Commonwealth v. Boyd, supra. See Commonwealth v. Sleeper, 435 Mass. 581, 600 (2002), citing Kentucky v. Whorton, 441 U.S. 786, 789-790 (1979) (even in final charge to jury, failure to give presumption of innocence charge not unconstitutional); Commonwealth v. Vann Long, 419 Mass. 798, 803 (1995), quoting Commonwealth v. Ascolillo, 405 Mass. 456, 459 (1989) (large degree of discretion afforded to judge's determination of juror impartiality).

2. Admission of Laboy's grand jury testimony. In his grand jury testimony, Laboy stated that the defendant said that he had shot someone. Approximately ten months later, Laboy signed a statement whereby he recanted his entire testimony, stating that he was impaired by marijuana and cocaine the evening of the murder and that he gave someone else a ride from the party.

Before trial, the judge held a hearing on the Commonwealth's request that Laboy be immunized from prosecution if he testified at trial to the events concerning his giving the defendant a ride after the murder. See G.L. c. 233, § 20E ( a). At the hearing, Laboy stated that he could not recall whether the defendant said that he shot someone. He also stated that he was invoking his right to remain silent pursuant to the Fifth Amendment to the United States Constitution. The judge granted Laboy immunity.

On voir dire, Laboy was questioned about the events of the evening of the murder. He was able to recall many specific details but claimed he was unable to recall his testimony to the grand jury that the defendant asked Laboy to take him out of town and admitted that he just shot someone. Although Laboy did not deny his testimony to the grand jury, when he was shown a transcript of his testimony it failed to refresh his memory.

The Commonwealth moved to have the relevant part of the grand jury testimony admitted substantively. The defendant objected, stating that it would violate his right to confrontation under the Sixth Amendment to the United States Constitution. The judge found, inter alia, that Laboy's lack of memory was a recent fabrication. When Laboy testified at trial and claimed a lack of memory about the defendant's statements the evening of the murder, the pages of Laboy's grand jury testimony concerning the defendant's statements that he shot someone and wanted Laboy to take him out of town were read to the jury as a prior inconsistent statement. After the relevant portion of the testimony was read to the jury, Laboy was asked what he recalled of that testimony. He stated that he recalled only some parts of it, but it did not include the defendant's incriminating statements.

The judge placed no limit on the cross-examination of Laboy, who did not refuse to answer any of the questions defense counsel asked. Concerning the incriminating statements, counsel elicited that Laboy had offered three different versions of the night of the murder and asserted the defense theory about why the story changed. Defense counsel implied, in essence, that Laboy's version of events that were part of his grand jury testimony (with the defendant's incriminating statements) was created after he spoke to Rodriguez or the victim's family; that the recantation in 2001 was to obtain leverage for Federal drug charges; and that the trial version (without the incriminating statements) was in consideration of a reduction in a Federal sentence Laboy was serving.

The defendant argues that the judge erred in allowing the grand jury testimony to be read to the jury. He argues that the testimony falls within "the 'core class' of statements that are always testimonial" and, as there was no possibility to "cross-examine the integrity of the statement," it was inadmissible pursuant to Crawford v. Washington, 541 U.S. 36 (2004) ( Crawford), and later Davis v. Washington, 547 U.S. 813, 821-822 (2006), and Commonwealth v. Galicia, 447 Mass. 737, 746 (2006). There was no error.

In Crawford, the United States Supreme Court stated that admitting testimonial out-of-court statements as evidence violates the confrontation clause of the Sixth Amendment to the United States Constitution unless the declarant is available at trial or the declarant is unavailable to testify but the defendant had an opportunity to cross-examine the declarant. Crawford, supra at 59 n. 9 68. See Commonwealth v. Fordham, 417 Mass. 10, 18 (1994), quoting Davis v. Alaska, 415 U.S. 308, 315-316 (1974) (primary interest secured by right to confrontation is right of cross-examination). Laboy's grand jury testimony is indisputably testimonial within the meaning of Crawford, supra at 68. However, Crawford also states that "when the declarant appears for cross-examination at trial, the Confrontation Clause places no constraints at all on the use of his prior testimonial statements . . . so long as the declarant is present at trial to defend or explain it." Id. at 59 n. 9, and cases cited. Here, Laboy was available for cross-examination.

The admission of Laboy's testimony also was consistent with the requirements of Commonwealth v. Daye, 393 Mass. 55, 73-74 (1984), as modified by Commonwealth v. Cong Due Le, 444 Mass. 431 (2005), and Commonwealth v. Sineiro, 432 Mass. 735, 742-743 (2000). See Commonwealth v. Clements, 436 Mass. 190, 193 (2002) (clarifying factors necessary for admissibility of prior testimony). At the voir dire, the judge found that there was an opportunity for effective cross-examination of Laboy. See Commonwealth v. Daye, supra at 73. He also found that Laboy's grand jury testimony was not coerced. Id. at 74 n. 20 (answers must not be mere confirmation or denial of interrogator's questions). The judge found that Laboy's lack of memory was a recent fabrication. See Commonwealth v. Sineiro, supra at 741-743 n. 7 (Commonwealth allowed to introduce victim's testimony from probable cause hearing where judge found claims of lack of memory to be fabrication).

In addition, as discussed, Laboy did not deny his testimony to the grand jury. See id. at 742. He recalled events to which the statement related, including the events of the evening until the defendant asked him for a ride and so much of the grand jury testimony as it related to where he took the defendant that evening. Commonwealth v. Daye, supra at 73 (recollection of events essential to effective cross-examination). Laboy also did not refuse to answer questions defense counsel posed to him, Commonwealth v. Amirault, 404 Mass. 221, 234 (1989) (lapse of memory not comparable to refusal to answer questions), nor was there any limitation placed on the cross-examination. Cf. Commonwealth v. Johnson, 365 Mass. 534, 543-544 (1974) (defendant's confrontation right violated where cross-examination limited). Defense counsel was able to probe fully Laboy's inconsistent versions of events. Commonwealth v. Daye, supra at 71-72 n. 15, quoting California v. Green, 399 U.S. 149, 159 (1970) ("The most successful cross-examination at the time the prior statement was made could hardly hope to accomplish more than [had] already been accomplished by the fact that the witness is now telling a different, inconsistent story . . .").

3. Grant of immunity. Although Laboy testified under a grant of immunity, he was not given immunity for any false testimony he gave at trial. See G.L. c. 233, § 20E. The defendant argues that his trial counsel was ineffective because he failed to move to revoke the immunity granted to Laboy in exchange for his trial testimony or, alternatively, that the judge erred in granting the immunity because he knew that part of Laboy's testimony, claiming a lack of memory, was a lie.

These arguments have no merit because "[w]e have held, without qualification, that a defendant 'has no standing to argue that the testimony of . . . purportedly immunized witnesses [is] the product of improper grants of immunity.'" Smith v. Commonwealth, 386 Mass. 345, 349 (1982), quoting Commonwealth v. Simpson, 370 Mass. 119, 121 (1976). See Commonwealth v. Mattos, 404 Mass. 672, 680-681 (1989) (counsel not ineffective where defendant had no standing to challenge search and seizure).

"[T]he statutory procedure for a grant of immunity is designed to accommodate the witness's rights and the State's need for evidence. The statute is simply not addressed to the interests of defendants." Smith v. Commonwealth, supra. Subject to the approval of the court, it is the purview of the prosecutor to seek a grant of immunity, see Commonwealth v. Curtis, 388 Mass. 637, 644-645 (1983), or to seek an order of contempt if an immunized witness refuses to testify. G.L. c. 233, §§ 20E, 20H.

The defendant's reliance on Commonwealth v. Steinberg, 404 Mass. 602, 603-604 (1989), is unavailing where the case involved an immunized witness's challenge to his own immunity and contempt conviction for refusing to testify before a grand jury. Nor is there merit to the defendant's one-sentence claim, unsupported by authority, that his due process rights required the revocation of Laboy's immunity. Commonwealth v. O'Brian, 445 Mass. 720, 733, cert. denied, 127 S. Ct. 213 (2006). Defense counsel had ample opportunity, through cross-examination of Laboy, to elicit that he had offered more than one version of the events of that evening, and to attack the grant of immunity. In addition, in his trial testimony, Laboy did recall most of the events that evening until the defendant asked him for a ride and so much of the grand jury testimony as related to where he took the defendant that evening. There was no error.

4. Consciousness of guilt instruction. Within one or two days of the murder, the State police began to search for the defendant. At trial, Sergeant Dennis Marks testified that he searched for the defendant's sister at two addresses in Lawrence because he had been told that the defendant lived with her. He also searched in Lowell, but eventually found the defendant's mother in Chelsea. Marks testified that the defendant's sister and mother were "uncooperative." He also visited the home of the defendant's girl friend in Lawrence. The defendant was arrested in June, 2001, in the Dominican Republic. At trial, the only evidence presented concerning his arrest outside the country was a stipulation stating the date and place. Only the fact that the defendant was arrested in the Dominican Republic was referenced in the judge's instructions to the jury. The judge told the jury that they could use the evidence if they found that the Commonwealth proved that the defendant did flee.

The defendant argues that it was error for the judge to instruct the jury, over objection, on consciousness of guilt. Relying on Commonwealth v. Toney, 385 Mass. 575 (1982), the defendant argues that the Commonwealth failed to demonstrate that police visits to relatives supported an inference "that the defendant did in fact know that the police were looking for him." This argument has no merit.

"It is well settled that evidence of flight may be introduced to show consciousness of guilt." Commonwealth v. Carita, 356 Mass. 132, 140 (1969). The Toney court explicitly held that the Commonwealth did not have to prove that the defendant knew, in fact, that the police were looking for her: "Evidence that a person flees from the scene of a crime or from his usual environs may be probative . . ." (emphasis added). Commonwealth v. Toney, supra at 583, citing 2 J. Wigmore, Evidence § 276, at 129 (Chadbourn rev. ed. 1979).

At trial, the focus of the discussion concerning whether a consciousness of guilt instruction was appropriate was on the defendant's arrest in the Dominican Republic. However, there was other evidence supporting consciousness of guilt. Laboy testified that the defendant fled the scene not only by getting into Laboy's car and asking for a ride, but also by asking Laboy to take him out of town. Under the holding in the Toney case, this alone was enough to permit a consciousness of guilt instruction. Commonwealth v. Epsom, 399 Mass. 254, 258-259 (1987), citing Commonwealth v. Toney, supra. Evidence that the police contacted the defendant's sister, mother, and girl friend would allow the jury reasonably to infer that the defendant knew that police were looking for him. We do not agree with the defendant's argument that the fact that the police did not find the sister and mother in the first places they searched has bearing on whether the instruction was proper. Moreover, the fact that he was arrested in the Dominican Republic, when Rodriguez testified that he knew the defendant from the Lawrence area, would allow a reasonable inference that he had fled the country. See Commonwealth v. Otsuki, 411 Mass. 218, 237 (1991). The defendant does not argue, nor could he, that the jury were not properly instructed. See Commonwealth v. Stewart, 398 Mass. 535, 547-548 (1986), quoting Commonwealth v. Toney, supra at 585 (judge must instruct jury that they may, but need not, consider consciousness of guilt as evidence of guilt and that they may not convict defendant solely on such evidence). There was no error.

5. General Laws c. 278, § 33E. We have reviewed the entire record as well as the defendant's claims of error pursuant to G.L. c. 278, § 33E, and we discern no reason to reduce the verdict or grant the defendant a new trial.

Judgment affirmed.