Madsen, J.
¶1 —After he confessed to writing graffiti on the interior of a stolen car, petitioner Leaa’Esola Unga was convicted of vehicle prowling and taking a motor vehicle without permission. He argues that his confession was involuntary and should not have been admitted at trial because it was coerced by a detective’s promise that he would not be charged with a crime for the graffiti. The Court of Appeals affirmed the conviction. We affirm the Court of Appeals because Unga’s confession was not coerced.
[98]*98FACTS
¶2 On February 7, 2005, a teacher at an elementary school in the city of SeaTac reported that her car had been stolen from the school parking lot. When Tukwila police recovered the car two days later, the steering column and ignition had been damaged and someone had written on the dashboard in black marker “F[_] Oficer [sic] Gilette [sic] 4rm C-loc, Bear, Bam Bam, Don’t trip.” Clerk’s Papers (CP) at 2.
¶3 On May 26, 2005, King County Sheriff Deputy Timothy Gillette, a SeaTac school resource officer, arrested Unga on an unrelated outstanding warrant. He suspected that Unga or a friend might have written the graffiti on the dashboard of the stolen car based on information he obtained that Unga and his friends were involved in “gang activity that includes graffiti.” CP at 2. Gillette asked Sheriff Detective Ryan Mikulcik to speak to Unga about the graffiti in the car and ongoing graffiti threats that had been made against Officer Gillette. Mikulcik had known Unga, who was 16 years old, since Unga was in middle school and had a friendly relationship with him. Mikulcik and Unga met in an interview room. Mikulcik advised Unga of his constitutional rights. After Unga signed a statement that stated he acknowledged these rights and voluntarily waived them, Detective Mikulcik asked Unga about the stolen vehicle. He showed Unga a picture of the graffiti on the dashboard and asked whether he had written it. At first Unga denied having written the graffiti. Mikulcik asked Unga to write Officer Gillette’s name to compare handwriting and noted similarities to the writing on the dashboard. Mikulcik asked Unga what “4rm” meant, and Unga responded that “4rm” is the way he writes “from.” Verbatim Tr. of Adjudicatory Hr’g (VT) at 41. He asked Unga to write “4rm” and when he did, Mikulcik again noted the writing was similar.
¶4 Detective Mikulcik testified that he told Unga that he “wouldn’t charge him with malicious mischief ... if he [99]*99would tell me about another crime” that had to do with graffiti and then clarified that he probably used the word “vandalism” rather than “malicious mischief.” VT at 38-39. He testified it was possible that he told Unga he would not be charged “with the graffiti,” but added that he normally did not say that. VT at 39. Detective Mikulcik’s intention was to find out who was making death threats against Officer Gillette, and he was hoping that Unga would be able tell him. He did not intend to get Unga to confess to motor vehicle theft. Unga testified that he thought that Mikulcik “meant the whole car, the whole charge of the car” — that he would not be charged with any crime in connection with the car. VT at 56. Unga confessed to writing the graffiti on the dashboard and signed the following written confession:
I was in a Honda Civic that was stolen. I was in the passenger seat and I cannot remember who was driving. I have been in many stolen cars and I know this one was stolen because the ignition was damaged. I used a marker and wrote on the dash board “F[_] Oficer [sic] Gilette [sic] 4rm c-loc, bear bam bam, don’t trip.” I have not written anything else about Officer Gillette and have never written anything threatening. This is the only thing I have written about him. I hope it wasn’t taken as a threat or the wrong way.
State Ex. 2.
¶5 The State charged Unga with one count of taking a motor vehicle without permission in the second degree and one count of vehicle prowl in the second degree. Unga moved to suppress his confession on the ground that he was coerced into confessing by Mikulcik’s promise that he would not be charged with a crime. On October 17, 2005, a CrR 3.5 hearing was held. Following the hearing, the juvenile court concluded that “[w]hile Detective Mikulcik’s statement that he would not charge the respondent with the graffiti to the dashboard may have been deceptive to some extent, some police deception is permitted by the Washington courts under State v. Burkins, 94 Wn. App. 677[, 973 P.2d 15] (1999).” CP at 46. The court held the confession was admissible because Mikulcik’s conduct was “not so over[100]*100bearing as to overcome” Unga’s “will to resist” and Unga knowingly, intelligently, and voluntarily waived his right to remain silent. Id. The adjudicatory hearing immediately followed, and based on the confession and other evidence presented, the court convicted Unga of second degree vehicle prowl and second degree taking a motor vehicle without permission.
¶6 Unga appealed, arguing that the juvenile court erred when it refused to suppress the confession. He also contended that his two convictions violated double jeopardy proscriptions. The Court of Appeals affirmed. State v. L.U., 137 Wn. App. 410, 153 P.3d 894 (2007).
ANALYSIS
¶7 Unga maintains that his confession was coerced in violation of his right not to incriminate himself. The Fifth Amendment to the United States Constitution states that “[n]o person . . . shall be compelled in any criminal case to be a witness against himself.” Article I, section 9 of the Washington State Constitution states that “[n]o person shall be compelled in any criminal case to give evidence against himself.” The protection provided by the state provision is coextensive with that provided by the Fifth Amendment. State v. Earls, 116 Wn.2d 364, 374-75, 805 P.2d 211 (1991). Admission of an involuntary confession at trial violates both provisions.
[T]he determination whether statements obtained during custodial interrogation are admissible against the accused is to be made upon an inquiry into the totality of the circumstances surrounding the interrogation, to ascertain whether the accused in fact knowingly and voluntarily decided to forgo his rights to remain silent and to have the assistance of counsel.
Fare v. Michael C., 442 U.S. 707, 724-25, 99 S. Ct. 2560, 61 L. Ed. 2d 197 (1979); Schneckloth v. Bustamonte, 412 U.S. 218, 226, 93 S. Ct. 2041, 36 L. Ed. 2d 854 (1973); Miranda v. Arizona, 384 U.S. 436, 475-77, 86 S. Ct. 1602,16 L. Ed. 2d 694 (1966). Because the Fifth Amendment protects a person [101]*101from being compelled to give evidence against himself or herself, the question whether admission of a confession constituted a violation of the Fifth Amendment does not depend solely on whether the confession was voluntary; rather, “coercive police activity is a necessary predicate to the finding that a confession is not ‘voluntary.’ ” Colorado v. Connelly, 479 U.S. 157,167,107 S. Ct. 515, 93 L. Ed. 2d 473 (1986). Thus, both the conduct of law enforcement officers in exerting pressure on the defendant to confess and the defendant’s ability to resist the pressure are important. United States v. Brave Heart, 397 F.3d 1035, 1040 (8th Cir. 2005).
¶8 Circumstances that are potentially relevant in the totality-of-the-circumstances analysis include the “crucial element of police coercion”; the length of the interrogation; its location; its continuity; the defendant’s maturity, education, physical condition, and mental health; and whether the police advised the defendant of the rights to remain silent and to have counsel present during custodial interrogation. Withrow v. Williams, 507 U.S. 680, 693-94, 113 S. Ct. 1745, 123 L. Ed. 2d 407 (1993) (and cases cited therein).
¶9 The totality-of-the-circumstances test specifically applies to determine whether a confession was coerced by any express or implied promise or by the exertion of any improper influence. State v. Broadaway, 133 Wn.2d 118, 132, 942 P.2d 363 (1997); Arizona v. Fulminante, 499 U.S. 279, 285, 111 S. Ct. 1246, 113 L. Ed. 2d 302 (1991) (abrogating test stated in Bram v. United States, 168 U.S. 532,18 S. Ct. 183, 42 L. Ed. 568 (1897)). A promise made by law enforcement does not render a confession involuntary per se, but is instead one factor to be considered in deciding whether a confession was voluntary. Fulminante, 499 U.S. at 285; Broadaway, 133 Wn.2d at 132; United States v. LeBrun, 363 F.3d 715, 725 (8th Cir. 2004); United States v. Dowell, 430 F.3d 1100, 1108 (10th Cir. 2005).
¶10 Whether any promise has been made must be determined and, if one was made, the court must then apply the totality-of-the-circumstances test and determine whether. [102]*102the defendant’s will was overborne by the promise, i.e., there must be a direct causal relationship between the promise and the confession. Broadaway, 133 Wn.2d at 132; see State v. Rupe, 101 Wn.2d 664, 678-79, 683 P.2d 571 (1984); United States v. Walton, 10 F.3d 1024, 1029 (3d Cir. 1993) (“the real issue is not whether a promise was made, but whether there was a causal connection between [the promise] and [the defendant’s] statement”).
¶11 This causal connection is not merely “but for” causation; the court does “not ask whether the confession would have been made in the absence of the interrogation.” Miller v. Fenton, 796 F.2d 598, 604 (3d Cir. 1986); see Fulminante, 499 U.S. at 285. “If the test was whether a statement would have been made but for the law enforcement conduct, virtually no statement would be deemed voluntary because few people give incriminating statements in the absence of some kind of official action.” United States v. Guerrero, 847 F.2d 1363, 1366 n.1 (9th Cir. 1988).
¶12 A police officer’s psychological ploys, such as playing on the suspect’s sympathies, saying that honesty is the best policy for a person hoping for leniency, or telling the suspect that he could help himself by cooperating may play a part in a suspect’s decision to confess, “but so long as that decision is a product of the suspect’s own balancing of competing considerations, the confession is voluntary.” Miller, 796 F.2d at 605; accord United States v. Miller, 984 F.2d 1028, 1031 (9th Cir. 1993); United States v. Durham, 741 F. Supp. 498, 504 (D. Del. 1990); State v. Darby, 1996 SD 127, 556 N.W.2d 311, 320; State v. Bacon, 163 Vt. 279, 294-95, 658 A.2d 54 (1995). “The question [is] whether [the interrogating officer’s] statements were so manipulative or coercive that they deprived [the suspect] of his ability to make an unconstrained, autonomous decision to confess.” Miller, 796 F.2d at 605; see Unitéd States v. Baldwin, 60 F.3d 363, 365 (7th Cir. 1995) (“the proper test is whether the interrogator resorted to tactics that in the circumstances prevented the suspect from making a rational decision whether to confess or otherwise inculpate himself”), vacated on other grounds, [103]*103517 U.S. 1231, 116 S. Ct. 1873, 135 L. Ed. 2d 169 (1996), adhered to on remand, 124 F.3d 205 (7th Cir. 1997).
¶13 The totality-of-the-circumstances analysis also specifically applies in deciding the admissibility of a juvenile defendant’s confession. Fare, 442 U.S. at 725. Included in the circumstances to be considered are the individual’s age, experience, intelligence, education, and background; whether he or she has the capacity to understand any warnings given and his or her Fifth Amendment rights; and the consequences of waiving these rights. Id. State courts have a responsibility to examine confessions of a juvenile with special care. In re Gault, 387 U.S. 1, 45, 87 S. Ct. 1428, 18 L. Ed. 2d 527 (1967); Haley v. Ohio, 332 U.S. 596, 599, 68 S. Ct. 302, 92 L. Ed. 224 (1948); Simmons v. Bowersox, 235 F.3d 1124, 1133 (8th Cir. 2001).
¶14 Unga maintains that Detective Mikulcik promised him that he would not be charged with any offense in relation to the car. Mikulcik testified, however, that he promised that he would not charge Unga with any offense relating to vandalism of the car, i.e., the graffiti. The trial court found Mikulcik’s testimony more credible because it accepted his version of events. The court found that “[w]hen Detective Mikulcik told the respondent he would not be charged with the graffiti to the dashboard, the respondent admitted to doing it.” CP at 45; see also VT at 83-84 (court’s oral ruling relating to credibility; stating that “ffi]aving observed both the officer and the respondent, I don’t believe that the conduct of the officer was over-bearing” or that Unga’s “will to resist” was overborne). Unga has not assigned error to the trial court’s findings, and thus this finding is a verity on review. Broadaway, 133 Wn.2d at 131. Therefore, the promise at issue is limited to the graffiti.
¶15 Unga argues Mikulcik’s promise was an “offer of immunity” that induced his confession. Unga argued to the Court of Appeals that if a defendant’s testimony is induced by a government promise of immunity, it is involuntary and must be suppressed. He argued to that court, and repeats in briefing to this court, that it is questionable whether the [104]*104State was even entitled to bring charges against him, given this “offer of immunity.” He has cited United States v. Brimberry, 744 F.2d 580, 587 (7th Cir. 1984), for the proposition that dismissal of an indictment is required if the prosecution of a defendant was based on direct or indirect testimony taken after a specific promise of immunity. Unga also argued to the Court of Appeals that even if there was no formal grant of immunity, a confession is involuntary if the defendant reasonably perceived that he was providing testimony under a grant of immunity. See United States v. Cahill, 920 F.2d 421, 427 (7th Cir. 1990).
¶16 The Court of Appeals concluded that under the totality of the circumstances, Unga mistakenly believed that he would not be charged with any crimes relating to the car, that this mistaken belief was not reasonable, and that Unga’s confession was voluntary. L.U., 137 Wn. App. at 415.
¶17 Initially, there was no “offer of immunity.” A police officer cannot actually extend immunity from prosecution. Rather, to compel a witness to give up the Fifth Amendment privilege against self-incrimination and testify, a prosecutor can offer a defendant immunity from prosecution. See generally State v. Bryant, 146 Wn.2d 90,42 P.3d 1278 (2002) (concerning whether immunity granted by prosecutor of one county binds a different county’s prosecutor); see State v. Bryant, 97 Wn. App. 479, 484, 983 P.2d 1181 (1999) (to compel an individual to give up his Fifth Amendment privilege against self-incrimination, a prosecutor can offer a defendant immunity from prosecution), review denied, 140 Wn.2d 1026 (2000); State v. Reed, 75 Wn. App. 742, 745, 879 P.2d 1000 (1994) (the police do not have authority to make prosecutorial decisions, and the decision whether to file criminal charges is within the prosecutor’s discretion).1
¶18 Next we consider the question addressed by the Court of Appeals, i.e., whether Unga reasonably per[105]*105ceived that an offer of immunity had been made and, if so, whether his confession was therefore involuntary. As Unga argued, Cahill, 920 F.2d at 427, does state that a defendant’s perception that he is testifying under a grant of immunity does not make the testimony involuntary unless his perception is reasonable. However, even assuming Unga had such a reasonable belief, it is not true that a defendant’s reasonable perception of immunity alone renders his confession involuntary, as the First Circuit has explained.2 In United States v. Flemmi, 225 F.3d 78 (1st Cir. 2000), the district court had relied on Cahill and reasoned that the defendant’s confession was involuntary because he reasonably perceived he had been granted immunity from prosecution. The First Circuit observed that it may have been true at one time that an unauthorized promise of immunity inducing a statement might have rendered the statement inadmissible, but the United States Supreme Court has since held that statements must be excluded as involuntary only when they are procured by coercive, official tactics. Id. at 91; see Connelly, 479 U.S. at 167. And “[t]he mere fact that an unfulfilled promise was made in exchange for a person’s statement does not constitute coercion, rendering the statement involuntary.” Flemmi, 225 F.3d at 91. Such a promise, like any other promise of leniency, is only one factor in the totality of the circumstances analysis and it must be considered in the context of all of the circumstances. Id. at 92; Fulminante, 499 U.S. at 285; Broadaway, 133 Wn.2d at 132; LeBrun, 363 F.3d at 725; Dowell, 430 F.3d at 1108.
¶19 The court’s analysis in Flemmi follows United States Supreme Court precedent: a totality-of-the-circumstances analysis must be applied, under which the promise is one of the circumstances in determining whether a defendant’s will has been overborne.
[106]*106¶20 The concurrence is thus incorrect when it gives conclusive weight to the fact that a promise was made. The concurrence deems Detective Mikulcik’s promise to be “coercive,” saying that “[t]he circumstances of Unga’s age, education, or prior relationship with Detective Mikulcik cannot change [this] simple fact.” Concurrence at 119. But Fulminante directs that a promise made by a law enforcement officer is only one factor to consider in deciding whether a confession is voluntary. Thus, although the concurrence gives lip service to the totality-of-the-circumstances test, it does not actually follow the Fulminante analysis.
¶21 The concurrence also cites Lynumn v. Illinois, 372 U.S. 528, 83 S. Ct. 917, 9 L. Ed. 2d 922 (1963), for the proposition that an interrogator’s use of physical or psychological pressure to obtain a confession will not be excused, and reasons that such pressure renders the confession involuntary as a matter of law. Concurrence at 119. Lynumn does not support the proposition. The United States Supreme Court in fact applied a totality-of-the-circumstances approach and determined the defendant’s confession was involuntary. The police had told the defendant, a widow, that her children, ages three and four, would be taken from her and put in foster homes and state financial aid would be cut off. These “threats were made while she was encircled in her apartment by three police officers and a twice convicted felon who had purportedly ‘set her up.’ ” Lynumn, 372 U.S. at 534. The Court noted that the defendant “had no previous experience with the criminal law, and had no reason not to believe that the police had ample power to carry out their threats.” Id. The state of Illinois conceded, and the Court held, that under the totality of the circumstances, the defendant’s confession was coerced. Id. at 534-35.
¶22 The concurrence cites no relevant authority supporting the view that if a police officer makes a promise that charges will be dropped, the court essentially does not need [107]*107to look any further to determine whether a confession is voluntary.3
¶23 Before turning to the totality of the circumstances in this case, we note that Unga also maintains that fundamental fairness requires the government to scrupulously perform its end of the bargain, citing Bryant, 146 Wn.2d at 105, and here the government “[a]rguably” did not do so. Suppl. Br. of Pet’r at 14. The State says Mikulcik referred the case to the prosecutor only as a motor vehicle case, thereby keeping his promise, and the prosecutor later made the independent decision within his discretion to charge Unga with vehicle prowling. In addition, during oral argument the State said it would dismiss the vehicle prowl count, which was founded on Unga’s having entered the car with the intent to commit a crime against property therein, i.e., the graffiti. See RCW 9A.52.100. The State made this concession in light of Detective Mikulcik’s promise that Unga would not be charged with the graffiti. We accept the State’s concession and direct that the charge of vehicle prowl in the second degree be dismissed.
¶24 We turn now to the issue whether, under a totality-of-the-circumstances analysis, the promise by Detective Mikulcik coerced Unga into making an involuntary confession. The circumstances at the time of the confession determine whether it was voluntary. United States v. Charles, 476 F.3d 492, 498 (7th Cir. 2007).
¶25 Unga contends that the evidence shows the promise induced his confession because although he had denied writing the graffiti, once Detective Mikulcik said that he would not be charged for the vandalism, he confessed. He emphasizes his young age and the friendly relationship he had with Mikulcik.
[108]*108¶26 An unqualified promise not to prosecute that in fact induces a confession may be “of such a nature that it can easily be found to have overcome a person’s resistance to giving a statement to authorities.” United States v. Conley, 859 F. Supp. 830, 836 (W.D. Pa. 1994). However, as explained, a promise does not per se render a confession involuntary; it is one factor among the totality of the circumstances. “That a law enforcement officer promises something to a person suspected of a crime in exchange for the person’s speaking about the crime does not automatically render inadmissible any statement obtained as a result of that promise.” Walton, 10 F.3d at 1028. “The promise must be sufficiently compelling to overbear the suspect’s will in light of all attendant circumstances.” Guerrero, 847 F.2d at 1366. After Fulminante, the key is whether the promise made it impossible for the defendant to make a rational choice as to whether to confess. Baldwin, 60 F.3d at 365.
¶27 Unga was given Miranda4 warnings and knew what his rights were. He acknowledged and waived these rights. There is no evidence that he lacked the capacity to understand his rights or the consequences of waiving his rights. He was 161/2 years old. In Fare, the Court held that a 16-year-old can make a statement intelligently and voluntarily, without a friendly adult present. Fare, 442 U.S. 707. Although Unga was a minor, many defendants of a similar age or younger have been found to have voluntarily confessed. See, e.g., Gachot v. Stalder, 298 F.3d 414 (5th Cir. 2002); Simmons, 235 F.3d 1124 (17 years old); Gilbert v. Merchant, 488 F.3d 780 (7th Cir. 2007) (14 years old); Hardaway v. Young, 302 F.3d 757, 762-68 (7th Cir. 2002) (14 years old); Winfrey v. Wyrick, 836 F.2d 406, 410 (8th Cir. 1987) (17 years old and of “subnormal intelligence”). In contrast, where an 11-year-old suspect who was inexperienced with the police made inculpatory statements, the court found counsel was ineffective for failing to challenge [109]*109the admissibility of the statements. A.M. v. Butler, 360 F.3d 787, 800-02 (7th Cir. 2004). Unga had completed the ninth grade.
¶28 There is evidence that Unga was a gang member. See Ruvalcaba v. Chandler, 416 F.3d 555, 561 (7th Cir. 2005) (although defendant had no prior experience with the criminal justice system, he was a “ ‘streetwise’ ” gang member, which reduced the importance of his lack of such experience and indicated the capacity to appreciate his rights). Unga was clearly aware that he was being questioned as a suspect in the commission of criminal activity.
¶29 The questioning was of short duration, lasting only 30 minutes. Unga was questioned in a small room containing a table and two chairs, where the door was left open. The interviewing officer was not in uniform and did not wear a firearm. There is no evidence that Mikulcik used a threatening tone, raised his voice, badgered Unga, attempted to intimidate him, or engaged in other similar tactics. Unga was not subjected to lengthy, prolonged questioning, nor to repeated rounds of questioning. There is no evidence that he was deprived of any necessities such as food, sleep, or bathroom facilities. In LeBrun, 363 F.3d at 726, the court found the defendant’s confession was voluntary, noting among other things that it placed “substantial weight on the fact that [the defendant] confessed after a mere thirty-three minutes” and the situation was not one where officers wore down the defendant’s will with persistent questioning over a considerable length of time. Cf. Haley, 332 U.S. 596 (confession involuntary where 15-year-old was arrested at midnight, held incommunicado, subjected to continuous interrogation by a rotation of police officers until he confessed after having been shown alleged confessions of two others involved in the robbery, not informed of right to counsel, and, when his mother brought fresh clothing for him, she found his old clothing was torn and bloody).
¶30 Unga testified that because he had known Mikulcik since middle school, he thought that Mikulcik “was going to [110]*110be okay with it,” i.e., would “drop all the charges.” VT at 54-55. Mikulcik and Unga had a friendly relationship that began a few years earlier. In some instances a friendly relationship might tend to indicate coercion if it is employed to cause the suspect to relax and confide in the officer. For example, in Walton, 10 F.3d 1024, Walton had been named as the source of illegally sold firearms and, because he had been implicated, was subjected to a regulatory inspection as a federal firearms licensee. The agents did not advise him that he was suspected of being the source of the illegally sold firearms. Id. at 1027. Walton told the agents he had no records for them to inspect. Id. The following day, he called one of the agents because he had known him in high school, and asked to meet at an open area outside the local library and talk off the record. Id. The next day, that agent and another met Walton on a park bench, and the first agent told Walton, “ Tve known you for a long time. If you want, you can tell us what happened off the cuff.’ ” Id. Walton admitted providing the firearms. He told the agent that he did not know what to do and wanted the agent to help him because he was his friend. He was later charged with conspiring to sell firearms illegally.
¶31 The court held that Walton’s statement was involuntary, in light of the following circumstances: Walton believed the statement that the conversation would be off the cuff meant that his statements would not be used against him, as did both agents present; the agent he knew made reference to his prior relationship with Walton as a basis for inviting him to speak “off the cuff” and the purpose of this reference was clearly to provide assurance that he could confide in the agents and anything he told them would not be used against him; the setting on a park bench did not detract from the friendly assurance, unlike an environment more typically associated with a police interrogation; and Walton had no reason to believe he was the subject of a criminal investigation. Id. at 1030.
¶32 Here, however, there is no indication that Detective Mikulcik exploited the friendly nature of the relationship to [111]*111overcome Unga’s will and the evidence indicates that Unga was well aware that the encounter was not a friendly chat. He had been kept in a cell prior to the questioning, had been given Miranda warnings by Detective Mikulcik, and was being questioned about serious criminal activity — threats against a police officer — in an interrogation room where the police were stationed in the city hall.
¶33 Under all of these circumstances, we do not agree that Mikulcik’s promise was coercive conduct that overbore Unga’s will and caused him to confess. This case is unlike other cases where confessions have been found to be involuntary. For example, in Taylor v. Maddox, 366 F.3d 992 (9th Cir. 2004), a 16-year-old was awakened in the middle of the night by four men with guns drawn and flashlights trained around the room. He was handcuffed, driven to the police station, taken to a small interrogation room, and left alone for 30 minutes. He was subjected to a three-hour interrogation that began after midnight and included threats from one of the officers. He was given no food and offered no rest break. The court held that the defendant’s confession was involuntary because he was interrogated for roughly three hours in the middle of the night, was relatively young, had been given no food, had been offered no rest break, and was threatened by one of the officers. Id. at 1015-16. In In re Interest of Jerrell C.J., 2005 WI 105, 283 Wis. 2d 145, 699 N.W.2d 110, a 14-year-old, with a low standard range of intelligence and previous school records showing average to failing grades with a more recent 3.6 grade point average, was handcuffed to a wall and left alone for approximately two hours and then interrogated for five and one-half hours before signing a confession. He was denied his request to call his parents. He had been arrested twice before for misdemeanors, confessed his involvement, and was allowed to go home. Here he was arrested for armed robbery. The officers refused to believe his repeated denials of guilt, joined in urging him to tell a different “truth,” and sometimes used a “strong voice” that frightened him. The court held his confession was involuntary. In A.M., 360 F.3d 787, an [112]*11211-year-old had no prior experience with the criminal justice system and was questioned for almost two hours in a closed interrogation room with no friendly adult, and the questioning detective continually challenged his statement and accused him of lying. The court held that the defendant’s statements should have been suppressed and, at the least, counsel was ineffective for failing to challenge the statements on voluntariness grounds. Id. at 801.
¶34 The circumstances in all of these cases are qualitatively unlike the circumstances in Unga’s case. The trial court correctly concluded that Unga’s confession was not coerced, and instead he voluntarily waived his rights to remain silent and not to incriminate himself.
¶35 The concurrence maintains, however, that even if the surrounding circumstances are considered, “the surrounding circumstances do not excuse the coercive aspect of Detective Mikulcik’s unequivocal promise of immunity.” Concurrence at 119.5 As this statement reflects, the concurrence misstates the constitutional inquiry, which is whether in light of the totality of the circumstances, the defendant’s will was overborne. Instead, the concurrence appears to believe that a promise to drop charges is presumptively coercive, if not conclusively so, and must be “excused” by the circumstances.
¶36 In addition, the concurrence cites absolutely no authority that supports its conclusion that Unga’s confession was voluntary with regard to one charged offense but involuntary with respect to another. This conclusion appears to be part and parcel of the concurrence’s theory that a promise to drop charges is, either as a matter of law or as a presumption that must be overcome by the circumstances, unconstitutionally coercive — and hence the difference. But the theory is, at its core, simply a reprise of the former rule stated in Bram, 168 U.S. at 542-43, that a confession cannot be obtained by “any direct or implied [113]*113promises.” The problem for the concurrence is that the rule in Bram was jettisoned in Fulminante.
¶37 Given the lack of authority for splitting a confession to multiple charges, and given that this artificial division appears rooted in an abrogated rule, the concurrence’s conclusion that Unga’s confession was voluntary as to the stolen vehicle charge but involuntary as to vehicle prowling is untenable.
¶38 Finally, in light of our acceptance of the State’s concession and request that the charge of second degree vehicle prowling be dismissed, we do not reach Unga’s argument that the conviction for vehicle prowling should be reversed on double jeopardy grounds.
CONCLUSION
¶39 The fact that a promise has been made not to charge a defendant with vandalism if the defendant tells about another crime does not alone render a subsequent confession involuntary. Instead, the totality of the circumstances must be examined to determine whether the confession was involuntary. In this case, under the totality of the circumstances the confession was voluntary. Accordingly, we affirm the trial court and the Court of Appeals.
Alexander, C.J., and C. Johnson, Owens, Fairhurst, J.M. Johnson, and Stephens, JJ., concur.