OPINION
delivered the opinion of the court,
This matter is before us upon remand by the United States Supreme Court for reconsideration in light of that Court’s decision in
Cunningham v. California,
549 U.S. -,
I. BACKGROUND
The Defendants’ Sixth Amendment claims as to the length of their sentences in this case are before us for reconsideration. We begin with a brief review of the prior proceedings.
The Defendants, Edwin Gomez and Jonathan S. Londono, were charged jointly with conspiracy to commit aggravated rоbbery (Count One), first degree felony murder (Count Two), especially aggravated
*736
robbery (Count Three), and aggravated robbery (Count Four). A recitation of the facts leading to these charges is set forth in our previous opinion,
State v. Gomez,
On direct appeаl, the Court of Criminal Appeals affirmed the Defendants’ convictions and sentences although the intermediate appellate court determined that the trial court should not have applied to the facilitation of felony murder offense the enhancement factor for use of a firearm. On direct appeal to this Court, the Defendants raised, for the first time, a Sixth Amendment challenge to the length of their sentences,
2
relying upon the United States Supreme Court’s decision in
Blakely v. Washington,
The Defendants sought certiorari from the United States Supreme Court regarding this Court’s holding on their
Blakely
issue. In due course, that Court vacated our decision in
Gomez I
and remanded this matter for further consideration in light of its recent opinion in
Cunningham v. California,
549 U.S. -,
II. ANALYSIS
A. Plain Error Review
As indicated above, this Court determined in its initial review of this matter that the Defendants were limited to plain error review on their sentencing clаims. Defendant Gomez and amicus curiae argue that plain error review is unnecessary and that we should grant plenary appellate review of the Defendants’ Sixth Amendment claims. Because we have determined that the Defendants are entitled to relief for plain error, we decline to readdress whether the Defendants properly preserved their Sixth Amendment claim for plenary review. Accordingly, consistent with our initial holding in Gomez I, we will apply plain error review to our reconsideratiоn of the Defendants’ sentencing claims.
B. Plain Error Criteria
Under plain error review, this Court will grant relief only where five prerequisites are met: (1) the record clearly establishes what occurred in the trial court; (2) a clear and unequivocal rule of law was breached; (3) a substantial right of the accused was adversely affected; (4) the accused did not waive the issue for tactical reasons; and (5) consideration of the error is “necessary to do substantial justice.”
State v. Smith,
1. Adequate Record
As to the first prerequisite, we acknowledged in our previous decision that the record clearly establishes what occurred in the trial court. Gomez I, 163 5.W.3d at 652. In short, the record reflects the offenses of which the Defendants were convicted and the transcript of the sentencing hearing reflects the meticulous process used by the trial court in crafting individualized sentences for each Defendant pursuant to the apрlicable statutory provisions.
2. Breach of Clear and Unequivocal Rule of Law
We next considered in Gomez I whether the trial court breached a clear and un *738 equivocal rule of law by applying enhancement factors based on facts not found by a jury to increase the length of the Defendants’ sentences to the maximum allowable in the applicable range. We determined that it did not. Id. at 661-62. We now revisit that analysis.
a. Apprendi and its Progeny
We begin with a brief review of the line of cases beginning with
Apprendi v. New Jersey,
In Blakely v. Washington,
the defendant was convicted of a felony under Washington law for which he was subject to a sentence of forty-nine to fifty-three months unless the trial judge found “ ‘substantial and compelling reasons justifying an exceptional sentence.’ ”
the “statutory maximum” for Apprendi purposes is the maximum sentence a judge may impose solely on the basis of the facts reflected in the jury verdict or admitted by the defendant. In other words, the relevant “statutory maximum” is not the maximum sentence a judge may impose after finding additional facts, but the maximum he may impose without any additional findings. When a judge inflicts punishment that the jury’s verdict alone does not allow, the jury has not found all the facts “which the law makes essential to the punishment,” and the judge exceeds his proper authority.
Blakely,
The Supreme Court addressed this issue in the context of the Federal Sentencing Guidelines in
United States v. Booker,
*739
In
Cunningham,
the Supreme Court considered California’s determinate sentencing law. Cunningham had been convicted of continuous sexual abuse of a child under the age of fourteen. Under California’s statutory sentencing scheme, Cunningham was subject to imprisonment “for a lower term sentence of 6 years, a middle term sentence of 12 years, or an upper term sentence of 16 years.” 549 U.S. at -,
In finding that California’s sentencing scheme violated thе Sixth Amendment, id., the Supreme Court emphasized that the crucial inquiry under Apprendi is the maximum sentence allowed under the relevant statutory scheme based solely on those facts reflected by the jury’s verdict (or admitted by the defendant). Id. at 860. In examining California’s sentencing scheme, the Court first determined that the “key California Penal Code provision states that the sentencing court ‘shall order imposition of the middle term’ absent ‘circumstances in aggravation or mitigation of the crime.’ ” Id. at 866 n. 10 (quoting CaLPenal Code Ann. § 1170(b)) (emphasis in Cunningham). The Court next recognized that, “[ujnder California’s [determinate sentenсing law], an upper term sentence may be imposed only when the trial judge finds an aggravating circumstance.” Id. at 868. For Sixth Amendment purposes, then, “the middle term prescribed in California’s statutes, not the upper term, is the relevant statutory maximum.” Id. Because the trial court sentenced Cunningham to the upper term sentence based on judicially determined facts not otherwise reflected by the jury’s verdict or admitted by the defendant, the Court held that the sentence violated Cunningham’s Sixth Amendment rights. Id. at 871.
b. Tennessee’s Sentencing Scheme
This appeal is governed by Tennessee’s Criminal Sentencing Reform Act of 1989 (“the Reform Act”) which, prior to its amendment in 2005, established a “presumptive sentence” for each class of felonies other than capital murder. Absent enhancing or mitigating factors, the presumptive sentence for Class B, C, D, and E felonies was the minimum in the applicable range.
7
Tenn. Code Ann. § 40-35-210(c) (Supp.2001). For Class A felonies, the presumptive sentence absent enhancing or mitigating factors was the midpoint in the applicable range.
Id.
A sentencing court could not increase a defendant’s sentence above the presumptive sentence except upon the application of statutory enhancement factors.
See id.; see also State v. Jones,
In our previous analysis of the Reform Act, which was conducted in light of
Booker
but without the benefit of
Cunningham,
we determined that “the relevant inquiry is whether the Reform Act
mandates
imposition of a sentence increased above the presumptive sentencе when a judge finds an enhancement factor.”
Gomez I,
We are instructed by
Cunningham,
however, that “[i]f the jury’s verdict alone does not authorize the sentence, if, instead, the judge must find an additional fact to impose the longer term, the Sixth Amendment requirement is not satisfied.”
In this case, the trial court increased all of the Defendants’ sentences beyond the presumptive sentences on the basis of two enhancement factors: their “previous history of criminal convictions or criminal behavior in addition to those necessary to establish the appropriate range,” and upon its determination that each “was a leader in the commission of an offense involving two (2) or more criminal actors.” Tenn.Code Ann. § 40-35-114(1), (2) (Supp. 2001). As to the Defendants’ convictions for facilitation of felony murder, the trial court also applied as an enhancement factor that each “possessed or employed a firearm, explosive device or other deadly weapon during the commission of the offense.” Id. at (9). On appeal, the Court of Criminal Appeals determined that the trial court had properly applied factors (1) and (2) but that application of factor (9) was not supported by the evidence. Nevertheless, the intermediate appellate court affirmed the Defendants’ maximum sentenсes.
The trial court’s application of the enhancement factor for a previous history of criminal convictions does not offend the Sixth Amendment.
See Apprendi,
3.Adverse Effect
We turn now to the third criterion for plain error review: whether a substantial right of the accused has been adversely affected. The State concedes that this prerequisite has been satisfied, and we agree with that concession. According to the Supreme Court, the trial court’s determination that enhancement factors (2) and (9) were applicable to increase the Defendants’ sentences deprived the Defendants of their Sixth Amendment right to have a jury determine whether those enhancement factors applied.
See Cunningham,
4.Waiver of Issue for Tactical Reasons
The fourth consideration for plain error review is whether the record indicates that the Defendants waived their Sixth Amendment claims for tactical reasons. Neither the pleadings filed by the Defendants with the trial court nor the transcript of the sentencing hearing provides any indication as to why the Defendants initially failed to raise a Sixth Amendment challenge to the trial court’s use of enhancement factors (2) and (9). In their pre-Gomez I briefs before this Court, however, bоth Defendants argued that their Sixth Amendment claims for relief from their sentences did not arise until Blakely was decided, more than two years after their sentencing hearing.
It is true that this Court has refused to find plain error where the record discloses that the alleged “error” resulted from a tactical choice by the defense. For instance, in
Smith,
the Court of Criminal Appeals determined sua sponte that the defendant was entitled to relief for plain error because the trial court did not provide the jury with a particular instruction regarding an evidentiary matter.
*742 In contrast, the record in this case is silent and does not establish that the Defendants made a tactical decision to waive their Sixth Amendment claims. Rather, it appears that defense counsel, like many others in the legal community, did not realize until Blakely was decided that the Defendants had a potential claim for relief under Apprendi 10 Accordingly, we conclude that the fourth prerequisite for plain error has been met.
5. Substantial Justice
We turn now to the final prerequisite: whether consideration of the trial court’s error in sentencing the Defendants is “necessary to do substantial justice.” We hold that it is.
As set forth above, one of the enhancement factors relied upon by the trial court in sentencing each Defendant was each Defendant’s “previous history of criminal convictions or criminal behavior in addition to those necessary to establish the appropriate range.” Tenn.Code Ann. § 40-35-114(1) (Supp.2001). Under
Apprendi,
a trial court may properly consider without jury findings a defendant’s prior сonvictions, as well as prior criminal behavior admitted to by a defendant, when imposing sentence.
See Apprendi
The proof at the sentencing hearing established that Defendant Londono had previous convictions for manslaughter and theft from interstate commerce. Defendant Londono also admitted to prior illegal drug use. The proof at the sentencing hearing was less clear as to Defendant Gomez’ criminal history. The prosecutor contended that Defendant Gomez had previous convictions of robbery and theft from interstate commerce. As to the robbery conviction, the prosecutor stated that he had contacted the New York authorities and gotten the case number but had not obtained a certified copy of the conviction. Defendant Gomez conceded his conviction for theft from interstate commerce but refused to acknowledge that he had been convicted of robbery in New York. Yet, the presentence report reflects in the “Financial Information” section that Defendant Gomez is indebted in the amount of $500,000 for “Federal Restitution (Robbery).” Following this information is the comment, “The restitution is owed to the federal government for a robbery conviction in another case.” Defendant Gomez did not object to this information in the presentence report which was made an exhibit to his sentencing hearing. This commentary in the presentence report, unobjected to by Defendant Gomez, supports the prosecutor’s assertion that Defеndant Gomez has a previous robbery conviction. Nevertheless, the trial court relied upon only the theft from interstate commerce conviction in applying enhancement factor (1) to Defendant Gomez.
The trial court accorded “great weight” to the Defendants’ prior criminal histories. However, the trial court also relied upon each Defendant’s being “a leader in the commission of an offense involving two (2) or more criminal actors,” Tenn.Code Ann. § 40-35-114(2) (Supp.2001), while imposing sentence for all of the Defendants’ convictions, and upon each Defendant having “possessed or employed a firearm, explosive device or other deadly weapon during the commission of the offense,” id. at *743 (9), while imposing sentence for the facilitation of felony murder offense. The trial court’s application of these two enhancement factors depended on the type of judicial fact-finding prohibited by Apprendi.
That the trial court gave “great weight” to the Defendants’ prior criminаl histories does not necessarily render irrelevant its application of enhancement factors (2) and (9). And while the Reform Act allows this Court on appeal of a sentence to “[ajffirm, reduce, vacate or set aside the sentence imposed,” Tenn.Code Ann. § 40-35-401(c)(2) (2006), the record in this case as to the Defendants’ criminal histories is not sufficiently well-developed for us to determine the proper sentences based on this enhancement factor alone. Therefore, because the trial court’s reliance upon enhancement factors (2) and (9) was constitutionally inappropriate, we conclude that granting the Defendants relief is necessary to do substantial justice in this case. We therefore vacate the Defendants’ sentences and remand to the trial court for a resen-tencing hearing at which the trial court will have an opportunity both to determine the full scope of the Defendants’ criminal histories and to consider whether imposition of the mаximum sentence on all convictions is appropriate. Our holding does not, however, affect the trial court’s determinations regarding manner of service or the imposition of consecutive sentences.
CONCLUSION
The trial court erred in applying enhancement factors for being a leader in the commission of the offenses and in possessing or employing a firearm to any of the Defendants’ sentences. Because the trial court’s error adversely affected the Defendants’ unwaived rights tо a jury trial, and because the record on appeal does not allow us to determine the proper sentences to be imposed, substantial justice requires that we vacate the Defendants’ sentences and remand this matter to the trial court for resentencing in a manner consistent with this opinion. In all other respects, the trial court’s judgments are affirmed.
It appearing that the Defendants are indigent, the costs of this cause are taxed to the State of Tennessee.
Notes
. We cite to the version of the Code in effect at the time of the Defendants’ sentencing hearing.
. In this Court, the Defendants did not challenge the trial court's imposition of consecutive service.
See Gomez I,
. The Defendants also continued to challenge their convictions on the basis that the admission of certain testimony violated their Sixth Amendment right to confrontation. As did the Court of Criminal Appeals, this Court concluded that neither Defendant was entitled to relief on that basis and affirmed the Defendants' convictions.
See Gomez I,
.See Tenn. R.Crim. P. 52(b) ("When nеcessary to do substantial justice, an appellate court may consider an error that has affected the substantial rights of an accused at any time, even though the error was not raised in the motion for a new trial or assigned as error on appeal.”).
. Although the Supreme Court vacated this Court’s decision in Gomez I, the Defendants continue to challenge only the enhancement of their sentences. Accordingly, we reinstate without further discussion the Defendants’ judgments of conviction for the reasons set forth in Gomez I.
. Subsequent to this Court's Order Denying Petition for Rehearing filed May 18, 2005, this Court’s mandate in Gomez I issued on June 30, 2005. On April 10, 2007, this Court recalled its mandate in order to comply with the mandate from the United States Supreme Court in granting certiorari to the Defendants on February 20, 2007.
. The sentencing range is determined based upon the defendant’s history of criminal convictions. See Tenn.Code Ann. §§ 40-35-105 through-109 (1997, 2006).
. In 2005, the General Assembly amended the Reform Act to comply -with the Sixth Amendment as interpreted by Apprendi and its progeny. See 2005 Term. Public Acts ch. 353, § 6 (codified at Tenn.Code Ann. § 40-35-210 (2006)). Imposition of a "presumptive sentence” in the absence of enhancing and mitigating factors is no longer mandatory. See Tenn.Code Ann. § 40-35-210(c) (2006).
. We are compelled to draw this conclusion in light of the Supreme Court's order of remand. We are constrained to point out, however, the numerous cases the Supreme Court has decided in an effort to clarify what Justice Ginsburg describes in
Cunningham
as
Apprendi’s
“bright-line rule,”
. Indeed, as pointed out by the dissent filed in
Gomez I,
prior to
Blakely
this Court held in
Graham
v.
State,
