Justice ERICKSON
delivered the
Opinion of the Court.
Justice VOLLACK specially concurs in the result only, and Justice LOHR and Justice KIRSHBAUM join in the special concurrence.
The court of appeals in People v. Rowe, 837 P.2d 260 (Colo.App.1992), affirmed the judgment of conviction and the sentence imposed on the petitioner, George W. Rowe, for first-degree assault committed under heat of passion. The court of appeals rejected Rowe’s assertion that the district court had committed reversible error by giving a jury instruction stating that first-degree assault committed under heat of passion was a lesser included offense of first-degree assault. We reverse the judgment of the court of appeals and return this case to the court of appeals with directions to remand to the district court for a new trial.
I
Rowe worked as a manager of the Atrium Bar and Grille. On the evening of February 18, 1989, two customers, Thomas Gary and Kevin Fox, refused to leave the bar at closing time. After an altercation broke out involving the two customers, Rowe and an off-duty bartender forced the two men out of the bar and locked the door to the bar. Once outside, Gary continued to shout obscenities and pounded on the locked door in an attempt to reenter the bar. Rowe subsequently fired several shots from a handgun into the door, seriously injuring Gary.
On February 28, 1989, Rowe was charged with one count of first-degree assault in violation of section 18-3-202, 8B C.R.S. (1986),1 and one count of committing a violent crime in violation of section 16-[488]*48811-309(2), 8A C.R.S. (1986). On January-12, 1990, the prosecution added habitual criminal counts, under which Rowe faced a potential mandatory life sentence.
At trial, Rowe’s theory of the case was self-defense. For tactical reasons, Rowe also advanced an alternative theory of defense based on provocation and requested a jury instruction on second-degree assault committed under heat of passion, a class one misdemeanor. See § 18-3-203(2)(a), 8B C.R.S. (1986).2 Defense counsel’s strategy and conclusion were that if Rowe was convicted of second-degree assault committed under heat of passion, a misdemeanor, instead of first-degree assault, Rowe not only would receive a shorter sentence, but also could not be adjudged a habitual criminal. The prosecution subsequently withdrew the habitual criminal counts during the jury instruction conference. The district court agreed to give the instruction on second-degree assault committed under heat of passion as a lesser included offense of first-degree assault and incorporated Rowe’s request within Jury Instruction Number 13. See Appendix.
The prosecution subsequently requested a jury instruction on second-degree assault, a class four felony. § 18-3-203(l)(d), 8B C.R.S. (1986).3 The prosecution also requested an instruction on first-degree assault committed under heat of passion, a class five felony. § 18-3-202(2)(a), 8B C.R.S. (1986).4 Over Rowe’s objection, the district court agreed to give both of the instructions requested by the prosecution as lesser included offenses of first-degree assault and incorporated the requests within Jury Instruction Number 13. See Appendix.
The jury found Rowe guilty of first-degree assault committed under heat of passion. Rowe was sentenced to four years in the department of corrections. On appeal, Rowe asserted that first-degree assault committed under heat of passion was a lesser nonincluded offense of first-degree assault, and, as a lesser nonincluded offense, could only be requested by a defendant.
The court of appeals determined that first-degree assault committed under heat of passion was neither a lesser included nor a lesser nonincluded offense of first-degree assault, but that heat of passion was merely a mitigating factor. Rowe, 837 P.2d at 263. While the court of appeals agreed with Rowe that the district court erroneously instructed the jury that first-degree assault committed under heat of passion was a lesser included offense, it concluded that no prejudice resulted from the erroneous instruction. Id. We granted certiorari to review the decision of the court of appeals and now reverse.5
[489]*489II
Prior to 1979, Colorado’s first-degree assault statute, section 18-3-202, did not contain any “heat of passion” language. In People v. Montoya, 196 Colo. 111, 582 P.2d 673 (1978), we determined that the legislative scheme embodied in the first-degree assault statute was constitutionally infirm because a person charged with first-degree assault who could establish that he acted under heat of passion nevertheless could receive a greater penalty than he could have received had he caused the death of his victim and been charged with manslaughter.
Montoya concluded:
Under the manslaughter statute, a person who intentionally causes the death of another in the “heat of passion” is guilty of a class four felony and is subject to imprisonment for one to ten years. Section 18-1-105(1), C.R.S.1973. A person who intentionally causes serious bodily injury under “heat of passion,” however, is subject to conviction for first-degree assault and imprisonment for a term of five to forty years. Thus, the offender who acts with the less culpable intent and who causes the less grievous result receives the greater penalty. Such an unreasonably structured legislative scheme is constitutionally infirm.
Id. at 114, 582 P.2d at 675.
In 1979, the General Assembly sought to remedy the constitutional infirmities set out in Montoya by enacting section 18-3-202(2)(a), which amended the first-degree assault statute to include heat of passion language.6 The General Assembly could have responded to Montoya in a variety of ways. Among other possibilities, the General Assembly could have (1) increased the sentence for manslaughter; (2) reduced the sentence for first-degree assault; (3) created a separate offense of “first-degree assault committed in the heat of passion;” (4) established heat of passion as an affirmative defense to first-degree assault; (5) utilized some form of rebuttable presumptions; or (6) maintained the offense of first-degree assault, while providing for a lesser sentence if the additional mitigating factor of heat of passion was present. Senate Bill No. 189 (S.B. 189) was proposed in direct response to Montoya to add heat of passion language to the first-degree assault statute. In this case, we must determine the effect of the amendment to the first-degree assault statute.
Ill
A
Our task in construing statutes is to ascertain and give effect to the intent of the General Assembly, not to second guess its judgment. Goebel v. Colorado Dep’t of Institutions, 830 P.2d 1036, 1041 (Colo. 1992); Farmers Group, Inc. v. Williams, 805 P.2d 419, 422 (Colo.1991); § 2-4-203, 1B C.R.S. (1980).
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Justice ERICKSON
delivered the
Opinion of the Court.
Justice VOLLACK specially concurs in the result only, and Justice LOHR and Justice KIRSHBAUM join in the special concurrence.
The court of appeals in People v. Rowe, 837 P.2d 260 (Colo.App.1992), affirmed the judgment of conviction and the sentence imposed on the petitioner, George W. Rowe, for first-degree assault committed under heat of passion. The court of appeals rejected Rowe’s assertion that the district court had committed reversible error by giving a jury instruction stating that first-degree assault committed under heat of passion was a lesser included offense of first-degree assault. We reverse the judgment of the court of appeals and return this case to the court of appeals with directions to remand to the district court for a new trial.
I
Rowe worked as a manager of the Atrium Bar and Grille. On the evening of February 18, 1989, two customers, Thomas Gary and Kevin Fox, refused to leave the bar at closing time. After an altercation broke out involving the two customers, Rowe and an off-duty bartender forced the two men out of the bar and locked the door to the bar. Once outside, Gary continued to shout obscenities and pounded on the locked door in an attempt to reenter the bar. Rowe subsequently fired several shots from a handgun into the door, seriously injuring Gary.
On February 28, 1989, Rowe was charged with one count of first-degree assault in violation of section 18-3-202, 8B C.R.S. (1986),1 and one count of committing a violent crime in violation of section 16-[488]*48811-309(2), 8A C.R.S. (1986). On January-12, 1990, the prosecution added habitual criminal counts, under which Rowe faced a potential mandatory life sentence.
At trial, Rowe’s theory of the case was self-defense. For tactical reasons, Rowe also advanced an alternative theory of defense based on provocation and requested a jury instruction on second-degree assault committed under heat of passion, a class one misdemeanor. See § 18-3-203(2)(a), 8B C.R.S. (1986).2 Defense counsel’s strategy and conclusion were that if Rowe was convicted of second-degree assault committed under heat of passion, a misdemeanor, instead of first-degree assault, Rowe not only would receive a shorter sentence, but also could not be adjudged a habitual criminal. The prosecution subsequently withdrew the habitual criminal counts during the jury instruction conference. The district court agreed to give the instruction on second-degree assault committed under heat of passion as a lesser included offense of first-degree assault and incorporated Rowe’s request within Jury Instruction Number 13. See Appendix.
The prosecution subsequently requested a jury instruction on second-degree assault, a class four felony. § 18-3-203(l)(d), 8B C.R.S. (1986).3 The prosecution also requested an instruction on first-degree assault committed under heat of passion, a class five felony. § 18-3-202(2)(a), 8B C.R.S. (1986).4 Over Rowe’s objection, the district court agreed to give both of the instructions requested by the prosecution as lesser included offenses of first-degree assault and incorporated the requests within Jury Instruction Number 13. See Appendix.
The jury found Rowe guilty of first-degree assault committed under heat of passion. Rowe was sentenced to four years in the department of corrections. On appeal, Rowe asserted that first-degree assault committed under heat of passion was a lesser nonincluded offense of first-degree assault, and, as a lesser nonincluded offense, could only be requested by a defendant.
The court of appeals determined that first-degree assault committed under heat of passion was neither a lesser included nor a lesser nonincluded offense of first-degree assault, but that heat of passion was merely a mitigating factor. Rowe, 837 P.2d at 263. While the court of appeals agreed with Rowe that the district court erroneously instructed the jury that first-degree assault committed under heat of passion was a lesser included offense, it concluded that no prejudice resulted from the erroneous instruction. Id. We granted certiorari to review the decision of the court of appeals and now reverse.5
[489]*489II
Prior to 1979, Colorado’s first-degree assault statute, section 18-3-202, did not contain any “heat of passion” language. In People v. Montoya, 196 Colo. 111, 582 P.2d 673 (1978), we determined that the legislative scheme embodied in the first-degree assault statute was constitutionally infirm because a person charged with first-degree assault who could establish that he acted under heat of passion nevertheless could receive a greater penalty than he could have received had he caused the death of his victim and been charged with manslaughter.
Montoya concluded:
Under the manslaughter statute, a person who intentionally causes the death of another in the “heat of passion” is guilty of a class four felony and is subject to imprisonment for one to ten years. Section 18-1-105(1), C.R.S.1973. A person who intentionally causes serious bodily injury under “heat of passion,” however, is subject to conviction for first-degree assault and imprisonment for a term of five to forty years. Thus, the offender who acts with the less culpable intent and who causes the less grievous result receives the greater penalty. Such an unreasonably structured legislative scheme is constitutionally infirm.
Id. at 114, 582 P.2d at 675.
In 1979, the General Assembly sought to remedy the constitutional infirmities set out in Montoya by enacting section 18-3-202(2)(a), which amended the first-degree assault statute to include heat of passion language.6 The General Assembly could have responded to Montoya in a variety of ways. Among other possibilities, the General Assembly could have (1) increased the sentence for manslaughter; (2) reduced the sentence for first-degree assault; (3) created a separate offense of “first-degree assault committed in the heat of passion;” (4) established heat of passion as an affirmative defense to first-degree assault; (5) utilized some form of rebuttable presumptions; or (6) maintained the offense of first-degree assault, while providing for a lesser sentence if the additional mitigating factor of heat of passion was present. Senate Bill No. 189 (S.B. 189) was proposed in direct response to Montoya to add heat of passion language to the first-degree assault statute. In this case, we must determine the effect of the amendment to the first-degree assault statute.
Ill
A
Our task in construing statutes is to ascertain and give effect to the intent of the General Assembly, not to second guess its judgment. Goebel v. Colorado Dep’t of Institutions, 830 P.2d 1036, 1041 (Colo. 1992); Farmers Group, Inc. v. Williams, 805 P.2d 419, 422 (Colo.1991); § 2-4-203, 1B C.R.S. (1980). To determine legislative intent, we look first to the language of the statute. Goebel, 830 P.2d at 1041; Farmers Group, 805 P.2d at 422. If a statute is ambiguous, we may determine the intent of the General Assembly by considering the statute’s legislative history, the state of the law prior to the legislative enactment, the problem addressed by the legislation, and the statutory remedy created to cure the problem. Charnes v. Boom, 766 P.2d 665, 667 (Colo.1988); Schubert v. People, 698 P.2d 788, 793-94 (Colo.1985).
Applying these settled principles of statutory construction, we conclude that in amending the first-degree assault statute in 1979, the General Assembly maintained the offense of first-degree assault, while providing for a lesser sentence if the additional mitigating factor of heat of passion was present. Our conclusion is supported by the legislative history of S.B. 189, the overall purpose of the statutory provisions enacted in response to Montoya, the internal structure of the first-degree assault statute, and the language employed in the amendment.
[490]*490In our view, the legislative history of S.B. 189 demonstrates that the General Assembly intended to maintain the offense of first-degree assault, while providing for a lesser sentence if the additional mitigating factor of heat of passion was present. In the Senate Judiciary Committee hearing on S.B. 189, the drafter of the amendment repeatedly stressed that “all we are doing is changing the penalty, we are not changing the elements of the [offense of first-degree assault].” Hearings on S.B. 189 Before the Senate Judiciary Committee, 52d Gen. Assembly, 1st Reg.Sess. (audio tape, Jan. 29, 1979, at 2:50-3:04).
By maintaining the offense of first-degree assault while adopting a statutory mitigating factor to reduce a defendant’s sentence in certain circumstances, the General Assembly achieved its overriding purpose of addressing the constitutional problems identified in Montoya. S.B. 189 was drafted so that a person who committed first-degree assault under heat of passion would not receive a greater punishment than a person who committed a homicide under heat of passion.
Based on the foregoing considerations, we hold that the General "Assembly maintained the offense of first-degree assault, while providing for a lesser sentence if the additional mitigating factor of heat of passion was present. Our conclusion that the General Assembly intended to establish a mitigating factor that could reduce a defendant’s sentence for first-degree assault can also be reached by briefly examining the options the General Assembly chose not to adopt in responding to Montoya.
B
The power to define criminal conduct and to establish the legal components of criminal liability is vested with the General Assembly. People v. Low, 732 P.2d 622, 627 (1987); Hendershott v. People, 653 P.2d 385, 390 (Colo.1982), cert. denied, 459 U.S. 1225, 103 S.Ct. 1232, 75 L.Ed.2d 466 (1983). As such, the General Assembly could have established an entirely new offense containing the element of heat of passion, as it did in defining the crime of manslaughter. See § 18-3-104, 8B C.R.S. (1986).
The internal structure of section 18-3-202, however, suggests that the General Assembly did not intend to create a new and separate offense of “first-degree assault committed under heat of passion.” Section 18-3-202 is entitled “Assault in the First Degree.” Subsection (1) defines the crime of first-degree assault by listing the elements necessary to establish the offense. Notably, the heat of passion language was placed in subsection (2), which deals exclusively with sentencing for defendants convicted of first-degree assault.7 Moreover, there is nothing in the hearings on S.B. 189 that suggests that the General Assembly intended to create a new and separate offense.
We conclude that by enacting section 18-3-202(2)(a) the General Assembly did not intend to create a new offense of first-degree assault committed under heat of passion, which contained the same elements as first-degree assault and an additional element of heat of passion. Compare CJI-Crim.2d 10:20 (heat of passion is not an element of first-degree assault but an issue the jury must consider once it has found a defendant guilty of first-degree assault) with CJI-Crim.2d 9:08 (listing heat of passion as an element of the offense of manslaughter that the prosecution must establish beyond a reasonable doubt).8
Because the General Assembly did not create a new and separate offense, there is no chargeable offense of first-degree assault committed under heat of passion, a point that the prosecution conceded during oral argument. Moreover, [491]*491there is no separate offense to classify as either a “lesser included offense” or a “lesser nonincluded offense” of first-degree assault.9 Instead, there is only one single crime of first-degree assault, albeit one that may have different sentences depending on whether the mitigating factor of heat of passion has been established.
C
In addition to establishing the essential components of criminal liability, it is within the prerogative of the General Assembly to establish affirmative defenses based on principles of justification or excuse. Hendershott, 653 P.2d at 390; see Low, 732 P.2d at 627.10 Section 18-1-407, 8B C.R.S. (1986), governs affirmative defenses to criminal conduct. Subsequent statutory provisions delineate the general affirmative defenses that are subject to section 18-1-407. See §§ 18-1-701 to -805, 8B C.R.S. (1986) (listing affirmative defenses); see also § 18-1-504, 8B C.R.S. (1986) (listing when mistake qualifies as an affirmative defense); § 18-1-505, 8B C.R.S. (1986) (listing when consent qualifies as an affirmative defense).
Within constitutional limitations, the General Assembly also may restrict an affirmative defense to a particular crime. Low, 732 P.2d at 627. On numerous occasions, the General Assembly has explicitly delineated particular affirmative defenses to specific crimes within the statutory section defining the offense.11 However, in none of the examples where the General Assembly has established an affirmative defense to a specific crime does a defendant receive a reduced sentence if the affir[492]*492mative defense is established. Rather, the affirmative defense acts as a complete bar to conviction for the offense.
The General Assembly, in its discretion, certainly could have established heat of passion as an affirmative defense to all offenses as it has done with the categories of justification defenses and responsibility defenses. See § 18-1-710, 8B C.R.S. (1986); § 18-1-805, 8B C.R.S. (1986). Alternatively, the General Assembly could have established heat of passion as an affirmative defense to the particular offense of first-degree assault by stating that heat of passion was an affirmative defense.12
In contrast to the various statutory sections where the General Assembly explicitly established affirmative defenses, nothing in the plain language of section 18-3-202, or in the placement and location of the heat of passion language in the criminal statutory scheme, indicates that the General Assembly intended for heat of passion to be an affirmative defense. Nor does the legislative history suggest that the General Assembly intended to create a new and separate offense. We conclude that the General Assembly did not intend for heat of passion to be an affirmative defense to the offense of first-degree assault. See People v. Pennese, 830 P.2d 1085, 1088 (Colo.App.1991) (stating that the General Assembly chose not to classify heat of passion as an affirmative defense to first-degree assault); see also People v. Huckleberry, 768 P.2d 1235, 1239 (Colo.1989) (rejecting argument that alibi was an affirmative defense and noting that an alibi defense was not expressly established by statute as an affirmative defense).
D
Based on the foregoing considerations, we conclude that the General Assembly addressed Montoya by including heat of passion language in the statutory scheme for first-degree assault as a mitigating factor that could reduce a defendant’s sentence for first-degree assault, rather than by creating a new and separate offense of first-degree assault committed under heat of passion or by establishing an affirmative defense. See Pennese, 830 P.2d at 1088 (characterizing heat of passion as a statutory penalty mitigator); People v. Harris, 797 P.2d 816, 818 (Colo.App.1990) (same). To decide otherwise would require us to ignore the clear intent of the General Assembly, the legislative history of S.B. 189, the plain language and structure of the first-degree assault statute, and the overriding purpose of the General Assembly.
IV
Based on our conclusion that the General Assembly did not create a new and separate offense of first-degree assault committed under heat of passion, it is clear that the district court erroneously instructed the jury that first-degree assault committed under heat of passion was a lesser included offense of first-degree assault. We further conclude that the erroneous instruction constitutes reversible error in this case.
Rowe was entitled to raise the issue of provocation and to request a jury instruction on heat of passion. Instead of giving a jury instruction on a separate lesser included offense of first-degree assault committed under heat of passion, however, the district court should have instructed the jury in accord with CJI-Crim.2d 10:20. See, e.g., Pennese, 830 P.2d at 1089.13 Un[493]*493der the model jury instruction, a jury properly considers the question of provocation only after it has determined that a defendant is guilty of first or second degree assault. In our view, the district court’s instructions in this case, which are dramatically different from the model jury instruction, constitute reversible error. The jury was in effect instructed on, and convicted Rowe of, an offense that does not exist as a separate offense. Accordingly, we reverse the judgment of the court of appeals and order a new trial.
V
We conclude that the district court’s erroneous instruction on first-degree assault committed under heat of passion as a lesser included offense of first-degree assault constitutes reversible error. Accordingly, we reverse the judgment of the court of appeals and return the case with directions to remand for a new trial.