¶1 Mark Black challenges his commitment as a sexually violent predator under chapter 71.09 RCW. He contends that his commitment must be vacated because he was not present when some potential jurors were questioned individually in open court about their prior experiences with sexual abuse. Based on the record before us, we conclude Black waived his right to be present while jurors were individually questioned about these sensitive subjects. Accordingly, we reverse the Court of Appeals and remand to that court for further proceedings consistent with this opinion.
Facts
¶2 In 2004, Black was convicted of molesting one 13-year-old and of attempting to molest a 12-year-old. Both children were friends with Black’s fiancée’s daughter. It was not Black’s first conviction for sexual crimes against children; in 1996, he was convicted of raping his 13-year-old stepdaughter and, in a separate case, he pleaded guilty to raping a 14-year-old he had met over the Internet. State v. Black, 86 Wn. App. 791, 792, 938 P.2d 362 (1997).
¶3 While Black was serving his 2004 sentence, he was evaluated to determine whether he met the criteria for commitment as a sexually violent predator. During that evaluation, Black reported that as an adult, he had re*150peated sexual contact with young teenagers for which he was never charged and “readily admitted he knew he was grooming the young girls” for sexual exploitation. Clerk’s Papers (CP) at 32.
¶4 The evaluator interviewed several of Black’s adult sexual partners who reported Black had repeatedly violently raped and assaulted them. One woman, B.D., was hurt enough that she went to the hospital with head and rib injuries. B.D. told the evaluator that Black did not want her to go and “made her concoct a story to tell” about her injuries and that he became more violent after that incident. CP at 36. Black acknowledged striking and choking many of his sexual partners but contended it was consensual. The evaluator diagnosed Black with sexual sadism, paraphilia with persistent sexual interest in pubescent-aged females, and a personality disorder with antisocial and narcissistic characteristics. The evaluator also concluded that Black “was unable to resist the opportunity to reoffend.” CP at 51. In 2011, as Black’s criminal sentence neared its end, the State filed a petition to commit him as a sexually violent predator.
¶5 At the start of Black’s trial, the jurors were given a questionnaire designed to determine whether they were qualified to sit on Black’s three-week special commitment trial. The questionnaires are not in the record, but the record suggests they were designed to determine whether potential jurors would have difficulty sitting on a case that would require consideration of sexual violence and child molestation, and to offer the jurors an opportunity to speak privately about those difficulties. During preliminary motions, while discussing the logistics of selecting the jury from a large panel in a small room, defense counsel said:
[W]e are planning for Mr. Black to arrive on the second day of trial. So the first day, which the jurors may want to speak to us privately, he wouldn’t have to be here for that. I think that can also help them be more open and honest about their history without having the person here accused of something like that. *151So our hope was to address those that first day, so that can be taken care of.
Verbatim Tr. of Proceedings (VTP) (Sept. 26, 2013) at 43. The court responded, “That certainly makes sense.” Id. Later, at the eve of trial, defense counsel again recommended “address [ing] individual jurors while Mr. Black isn’t here ... so we can do that without Mr. Black hearing the personal information.” VTP (Oct. 17, 2013) at 96-97. We can infer that Black’s attorney was reasonably concerned about the prejudicial effect of having Black present in the courtroom while jurors were asked difficult questions about sexual violence. The State did not object and suggested handling hardship excusáis at the same time. While the record is not a model of clarity, it demonstrates, and Black does not dispute, that he waived his appearance at least on the first day of voir dire, Monday, October 21, 2013.
¶6 So many jurors asked to speak privately about the matters raised in the questionnaire that individual voir dire was not finished by the end of the first day. The court and counsel had expected Black to be in court the next day, October 22, 2013. Unfortunately, the jail did not transport him and, when called by the judge, reported it could not do so that day. The record is somewhat unclear on what happened at this point. The clerk’s minutes report that off the record and before individual voir dire began, “Counsel states that Defendant has not been brought up from the jail, even though he did not waive his presence from this point forward.” CP at 1430. This notation contains the glimmerings of an objection. But the formal record as reflected in the VTP reveals no objection before individual voir dire resumed. Instead, the transcript reports that after expressing understandable frustration that Black had not been transported, the court returned to the individual voir dire of the last five jurors who had asked to speak privately. During this individual voir dire, several potential jurors were excused.
*152¶7 After individual voir dire was finished, the court and counsel had a brief discussion about whether some other jurors should be dismissed. Afterward, defense counsel suggested excusing the voir dire panel for the day. The clerk’s minutes record this as a motion. The judge suggested instead that Black waive his presence for jury selection that day “so we could move the case along.” VTP (Oct. 22, 2013) at 51 (jury voir dire). Defense counsel responded:
Your Honor, I don’t think that would be feasible for him. We discussed that with the peremptories. But I think the for cause, he did not feel comfortable waiving the other—we [can] go talk to him if the Court wants, but I think it would ... be better for the jury to see him at some point before it’s actually picked. You know, somebody may recognize him.
Id. The trial court again expressed frustration that the trial could not go forward and that jurors’ time was wasted because Black had not been transported, but concurred with counsel that Black had a right to be present for the general voir dire and effectively granted the defense’s motion. The judge brought the panel back in the courtroom, explained that jury selection could not be finished that day, excused a few jurors for hardships, and excused the rest of the panel for the day. A few potential jurors asked to speak to the court about their individual concerns about serving on the jury. Black’s counsel did not object, and several of these jurors were dismissed. Jury selection resumed the next court day with Black present. After a two-week trial, the jury concluded the State had proved its case.
¶8 Black appealed on several grounds. The Court of Appeals concluded that Black had a due process right to be present during jury selection and that the right had been violated, and reversed and remanded for a new trial. In re Det. of Black, 189 Wn. App. 641, 654, 357 P.3d 91 (2015). It did not decide Black’s remaining issues. Id. at 658-59. Both the State and Black petitioned for review. We granted the State’s petition and denied Black’s. 185 Wn.2d 1002, 366 P.3d 1243 (2016).
*153Analysis
¶9 Black contends that the criminal defendant’s right to be present during jury selection extends to those facing civil commitment as sexually violent predators, that this right was violated, and that his civil commitment must be vacated. The State contends that Black failed to preserve any error on the record, that the criminal defendant’s right to be present at every critical stage of trial does not extend to civil commitment proceedings, and that Black failed to show that his right to due process was offended by his absence from the conclusion of individual questioning of jurors.
¶10 The extent to which the contours of a criminal defendant’s right to be present at every critical stage of jury selection extends to someone facing civil commitment as a sexually violent predator merits serious consideration. This, however, is not the case for us to answer that question. The absence of a clear contemporaneous objection deprives us of a good record on which to make that decision. More importantly, we are satisfied that the second day of individual voir dire was within the substantive scope of Black’s waiver.
¶11 In general, constitutional rights can be waived by a knowing, voluntary, and intelligent act. State v. Stegall, 124 Wn.2d 719, 724-25, 881 P.2d 979 (1994) (citing City of Bellevue v. Acrey, 103 Wn.2d 203, 208-09, 691 P.2d 957 (1984)). Specifically, the right to be present may be knowingly and voluntarily waived. State v. Thomson, 123 Wn.2d 877, 880, 872 P.2d 1097 (1994) (citing Johnson v. Zerbst, 304 U.S. 458, 464, 58 S. Ct. 1019, 82 L. Ed. 1461 (1938)). There is no dispute that Black’s decision to waive his presence on the first day of voir dire qualifies as a knowing, voluntary, and intelligent act. At least two times, defense counsel urged the court to conduct individual voir dire out of Black’s presence in order to foster an environment of candor during *154individual questioning of jurors about often agonizingly difficult subjects. VTP (Sept. 26, 2013) at 43; VTP (Oct. 17, 2013) at 96-97. This case is complicated by the fact that Black did not voluntarily absent himself on the second day of jury selection, which might normally be fatal to the State’s case. See, e.g., State v. Irby, 170 Wn.2d 874, 883, 246 P.3d 796 (2011). But we have found no case, and none has been called to our attention, where someone in Black’s position urged for a portion of jury selection to be conducted out of his presence, incorrectly anticipating both that the portion of jury selection would be finished in one day and that he would be present the next. In such a circumstance, we must look to the nature of the waiver and the nature of the right. “The core of the constitutional right to be present is the right to be present when evidence is being presented.” In re Pers. Restraint of Lord, 123 Wn.2d 296, 306, 868 P.2d 835 (1994) (citing United States v. Gagnon, 470 U.S. 522, 526, 105 S. Ct. 1482, 84 L. Ed. 2d 486 (1985)). “Beyond that, the defendant has a ‘right to be present at a proceeding whenever his presence has a relation, reasonably substantial, to the fulness of his opportunity to defend against the charge.’ ” Id. (internal quotation marks omitted) (quoting Gagnon, 470 U.S. at 526). While Black may well have had the right to be present during jury selection, his presence during the second day of individual voir dire on potential jurors’ history with sexual abuse is no more related to his opportunity to defend than his presence on the first. See Stegall, 124 Wn.2d at 725 (requiring a case-by-case analysis).
¶12 We stress that defense counsel did not object on the record to finishing individual voir dire out of Black’s presence. See VTP (Oct. 22, 2013) at 64-89 (jury voir dire). While we do not mean to suggest that counsel could waive Black’s right to be present by silence, the lack of a clear and prompt objection is strong evidence that counsel perceived no error and that Black’s waiver was substantively related to individual voir dire, not temporally limited to the first *155day of voir dire. Cf. State v. Jones, 185 Wn.2d 412, 427, 372 P.3d 755 (2016) (citing State v. Williams, 96 Wn.2d 215, 226, 634 P.2d 868 (1981)).
¶13 We note that the individual voir dire was designed to determine if jurors could be fair and impartial despite their prior experiences and that the first and second days of jury selection were substantially similar to one another. On the first day, juror 24 was excused after disclosing sexual abuse within her family that plainly caused her severe anguish. Juror 34 disclosed that her daughter was sexually molested when very young by a family member. Juror 44 was excused after telling the judge about being assaulted as a 10-year-old child. That juror had never disclosed the assault to anyone until that voir dire. Juror 50 was excused after testifying that his niece had been impregnated by rape and borne a child who suffered from severe and disruptive problems with anger. Juror 54 was excused after testifying that he had a family member who had been committed to the state mental hospital due to a severe mental illness that caused him to abuse people sexually. The next day, juror 7 testified that her sister had been sexually assaulted at college. Juror 48 had been sexually abused as a child by a babysitter. Juror 70’s son had been accused of grooming his sister for sexual abuse. Juror 74 was excused after testifying that she saw the devastating consequences of rape after her babysitter was raped and later when her husband’s disabled uncle was sexually assaulted by a live-in caregiver.
¶14 We find no substantial difference between the type of agonizing, intimate questioning of individual jurors that took place on the first day of jury selection and the second. Coupled with the lack of a formal, on-the-record objection, we can logically conclude that Black waived his presence for that portion of jury selection. A contrary decision would require us to conclude that Black waived his presence during a random sampling of individual jurors. We decline to reach such a strained conclusion.
*156Conclusion
¶15 We conclude that Black waived his presence during the individual questioning of jurors. Accordingly, we reverse and remand to the Court of Appeals for further proceedings consistent with this opinion.
Madsen, C.J.; Johnson, Owens, Stephens, Wiggins, Gordon McCloud, and Yu, JJ.; and Siddoway, J. Pro Tem., concur.