delivered the opinion of the court:
Defendant Joseph Palmer was charged by information in Cook County with the felony offense of unlawful use of weapons under the Criminal Code of 1961 (Ill. Rev. Stat. 1981, ch. 38, pars. 24—1(a)(10), 24—1(b)). The information alleged that defendant committed the offense of unlawful use of weapons within five years of his release from the penitentiary for the felony offense of murder. Defendant waived his right to a jury, and the cause proceeded to a bench trial. During the State’s opening remarks, the prosecutor commented on defendant’s prior conviction. Defense counsel objected to evidence of defendant’s prior felony conviction being introduced during the evidentiary stage of the trial. According to counsel, such information would likely prejudice the court against the defendant.
In response the trial judge noted that, if the case were being tried by a jury, he would in all likelihood preclude the State from introducing evidence before the jury regarding the defendant’s prior conviction of a forceable felony. Under such circumstances, the court stated that it would order a bifurcated proceeding wherein defendant’s prior conviction could be proved during a separate proceeding accompanying sentencing, should the defendant be found guilty of unlawful use of weapons. However, since the proceeding was a bench trial, the judge expressed his belief that the court could hear evidence regarding the defendant’s prior conviction during the evidentiary stage of the trial without prejudice to the defendant.
After the court’s comments, but before the first witness was sworn, defendant indicated that he wished to withdraw his jury waiver and that he was unwilling to stipulate to his prior conviction. In line with its earlier comments, the court then ruled that it would not permit the State to prove defendant’s prior conviction to the jury. Citing People v. Hayes (1981), 87 Ill. 2d 95, the court ruled that the State could establish the prior felony conviction during the sentencing hearing.
Similarly, defendant Kenneth Hollins was charged by indictment in Cook County with unlawful use of weapons within five years of a felony conviction. (Ill. Rev. Stat. 1981, ch. 38, pars. 24—1(a)(10), 24—1(b).) Prior to his trial, he filed a motion in limine which sought to exclude evidence of his prior burglary conviction from being presented to the jury. The defendant further requested that the court refrain from reading or otherwise bringing to the jury’s attention references to the prior conviction contained in the indictment. The defendant also informed the court that he was willing to stipulate to his prior conviction outside the presence of the jury Although the State objected, the court allowed defendant’s motion, relying on Hayes.
The State filed interlocutory appeals from both these rulings under our Rule 604(a)(1), certifying that the orders, suppressing evidence of defendants’ prior convictions, substantially impaired the State’s ability to prosecute both cases as felonies. (87 Ill. 2d R. 604(a)(1); People v. Young (1980), 82 Ill. 2d 234.) The appellate court consolidated the two causes and reversed, with one justice dissenting. (120 Ill. App. 3d 707.) It found that evidence of defendants’ prior felony convictions should be presented to the jury as an element of the felony offense of unlawful use of weapons. We granted defendants’ petition for leave to appeal (87 Ill. 2d R. 315).
The sole question presented is whether evidence of defendants’ alleged prior felony convictions must be presented to the jury as an element of the felony offense of unlawful use of weapons.
The statute in question provides in pertinent part:
“Sec. 24 — 1. Unlawful Use of Weapons.
(a) A person commits the offense of unlawful use of weapons when he knowingly:
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(10) Carries or possesses on or about his person, upon any public street, alley, or other public lands within the corporate limits of a city, village or incorporated town, except when an invitee thereon or therein, for the purpose of the display of such weapon or the lawful commerce in weapons, or except when on his land or in his own abode or fixed place of business, any pistol, revolver, stun gun or taser or other firearm.
* * *
(b) Sentence.
A person convicted of a violation of *** Subsection (a)(10) *** commits a Class A misdemeanor ***. A person convicted of a felony under the laws of this or any other jurisdiction, who,_ within 5 years of release from penitentiary or within 5 years of conviction if penitentiary sentence has not been imposed, violates any Subsection of this Section commits a Class 3 felony.” Ill. Rev. Stat. 1981, ch. 38, pars. 24-1(a)(10), 24-1(b).
Under the statute, the State, to secure a felony conviction for unlawful use of weapons, must not only prove a violation of section 24 — 1(a) but, under section 24— 1(b), it must also prove that this violation occurred within five years of a defendant’s prior felony conviction or within five years of defendant’s release from the penitentiary for a prior felony conviction. Without this additional proof, the offense is a misdemeanor. Accordingly, this court has consistently held that it is necessary to allege and prove the prior felony conviction in order to establish the felony offense of unlawful use of weapons. People v. Dixon (1970), 46 Ill. 2d 502, 504; People v. Owens (1967), 37 Ill. 2d 131, 132; People v. Ostrand (1966), 35 Ill. 2d 520, 529 overruled in part on other grounds in People v. Bracey (1972), 51 Ill. 2d 514. See also Spencer v. Texas (1967), 385 U.S. 554, 566-67, 17 L. Ed. 2d 606, 615-16, 87 S. Ct. 648, 655 (allegation and proof of a prior conviction does not offend due process clause).
Further, in People v. Edwards (1976), 63 Ill. 2d 134, the court held that a jury could not find a defendant guilty of felonious unlawful use of weapons when it was instructed to consider the prior conviction only on the issue of defendant’s credibility. Under such circumstances, the court affirmed the unlawful-use-of-weapons conviction as a misdemeanor only, and remanded the cause for a proper sentence. In reaching this conclusion the court observed that “[i]t is settled that the State must allege and prove a prior conviction to establish the commission of felonious unlawful use of a weapon.” (Emphasis added.) (63 Ill. 2d 134, 138.) Although the State presented evidence of the defendant’s prior conviction in Edwards, the jury was instructed to consider that evidence only on the issue of defendant’s credibility. Since the prior conviction was “an element of the offense which must be proved by the State” and the jury was precluded from considering it as such, the court found that the verdiet was insufficient to support the felony offense. (Emphasis added.) 63 Ill. 2d 134, 140-41.
Thereafter, in People ex rel. Carey v. Pincham (1979), 76 Ill. 2d 478, this court was called upon to consider whether the circuit court had authority to order a bifurcated trial in a prosecution for felonious unlawful use of weapons. In that case, as in the case at bar, counsel for the defendant objected to the jury being informed as to defendant’s prior conviction and incarceration, as well as to the admission of any evidence on these matters. Under the trial court’s order, the jury was to initially decide whether defendant violated section 24 — l(a)(10). If the jury returned a verdict of guilty, it would then hear evidence as to the defendant’s prior conviction pursuant to section 24 — 1(b). This court vacated the order of the circuit court, holding that it deprived the State of the right to seek a felony conviction. (People ex rel. Carey v. Pincham (1979), 76 Ill. 2d 478, 480.) As the court stated, “The decisions of this court have established that proof of the prior conviction is necessary to a conviction of the felony charge.” (Emphasis added.) (76 Ill. 2d 478, 480.) The court also found that proof of the prior conviction, required under section 24 — 1(b), must come before a finding of guilt or innocence pursuant to section 24— l(a)(10) if a felony conviction is to be obtained.
Our decisions in Edwards and Pincham are dispositive of the issue involved herein. In fact, the defendants concede that the above-cited authorities have held that the State must prove the prior conviction before the jury in order to secure a felony conviction for unlawful use of weapons. Nonetheless, the defendants contend that this court’s subsequent decision in Hayes, a retail theft case relied upon here by the trial court, impliedly overruled those earlier cases to the extent that Hayes seems to conflict with them.
It is fundamental, however, that the precedential scope of a decision is limited to the facts before the court. (People v. Flatt (1980), 82 Ill. 2d 250, 261; People v. Beard (1974), 59 Ill. 2d 220, 225, cert. denied (1975), 421 U.S. 992, 44 L. Ed. 2d 483, 95 S. Ct. 1999; People v. Arndt (1971), 49 Ill. 2d 530, 533; People v. Morales (1971), 48 Ill. 2d 396, 400.) In Hayes, this court responded to the narrow issue of whether it was necessary, in a prosecution for felonious retail theft, to allege in the body of the indictment or information that the offense charged was a second or subsequent offense of retail theft. (Ill. Rev. Stat. 1979, ch. 38, par. 16A—10(2).) In concluding that such an allegation was not necessary, this court relied upon the facts of that case. Specifically, the court noted: (1) that the defendant had been advised at her first appearance before the court that the State sought to invoke the felony provision of the statute (Ill. Rev. Stat. 1979, ch. 38, par. 16A—10(2)); (2) that the prior conviction had been stipulated to at trial; and (3) that defendant had shown no prejudice as the result of the State’s failure to allege the prior retail theft conviction in the information. (People v. Hayes (1981), 87 Ill. 2d 95, 98.) Consequently, because the defendant had notice and was not prejudiced by the omission of the allegation from the information, this court affirmed the defendant’s conviction, which had been enhanced to a Class 4 felony as a result of a previous retail theft conviction (Ill. Rev. Stat. 1979, ch. 38, par. 16A—10(2)).
In the instant case, the defendants seek to rely upon dicta in Hayes for the proposition that the prior felony is not an element of the felony offense of unlawful use of weapons. According to the defendants, the provisions of the retail theft statute applicable in Hayes (Ill. Rev. Stat. 1979, ch. 38, pars. 16A—3(a), 16A—10(2)) and the provisions of the unlawful-use-of-weapons statute applicable in the present case (Ill. Rev. Stat. 1981, ch. 38, pars. 24—1(a)(10), 24—1(b)) are similar, since under both statutes the enhancement provision is contained in a separate subsection which deals with sentencing. On this basis, defendants contend that the prior felony is not an element of the offense but merely relates to the severity of the penalty to be imposed. Therefore, they submit that the prior conviction may properly be proved during sentencing, as opposed to during the evidentiary stage of the trial. In support of their argument, the defendants direct our attention to the following passage in Hayes, wherein it was stated:
“We are not unaware of the differences between the result of conviction of a felony and a misdemeanor. *** We do not, however, find any sound reason to hold that because the prior conviction elevates the degree of the offense from a misdemeanor to a felony it should be necessary, at the risk of prejudice to the accused, that it be alleged in the information and proved.
We hold that in order to invoke the provisions of section 16A — 10(2) the sentencing court must find beyond a reasonable doubt, after notice to the accused and an opportunity to refute the allegation, that the accused was in fact convicted of a prior offense of retail theft and that the record supports that finding.” 87 Ill. 2d 95, 98.
Although the above quotation seems, at first reading, to conflict with this court’s reasoning in 0strand and Owens, we cannot agree with the defendant’s conclusion that under Hayes the prior felony need not be proved at trial. The aforesaid language of that opinion must be interpreted within the factual circumstances presented in that case. The defendant in Hayes was claiming prejudice as a result of the State’s failure to include an allegation that the pending charge was a second or subsequent offense. She was not claiming that the allegation and proof of the prior conviction should have been excluded as prejudicial, as did the defendants in Ostrand and Owens. Therefore, the issue of whether prejudice results when the State alleges and proves the prior conviction was not presented in Hayes. Accordingly, any comment the court made regarding that issue is properly characterized as dicta, which is not binding authority within the rule of stare decisis. (Williams v. Crickman (1980), 81 Ill. 2d 105, 113.) Thus Hayes holds only that, where a defendant has notice that she is being tried as a felon, a felony conviction for retail theft can be sustained despite the State’s failure to allege in the information that the offense charged was a second or subsequent offense of retail theft. (People v. Hayes (1981), 87 Ill. 2d 95, 98.) As such, Hayes did not overrule Ostrand or subsequent cases based thereon.
Further, we are not persuaded by defendants’ efforts to liken section 24 — 1(b) of the unlawful-use-of-weapons statute (Ill. Rev. Stat. 1981, ch. 38, par. 24—1) to either the extended-term provision of the Unified Code of Corrections (Ill. Rev. Stat. 1981, ch. 38, par. 1005—8—2) or the Habitual Criminal Act (Ill. Rev. Stat. 1981, ch. 38, par. 33B—1 et seq.). Both of those provisions deal exclusively with sentencing and are designed to enhance the penalty for offenses which are felonies. They do not change the nature of an offense from a misdemeanor to a felony as does section 24 — 1(b).
Moreover, although the Habitual Criminal Act specifically provides that a prior conviction shall not be alleged in the indictment, or proved at trial (Ill. Rev. Stat. 1981, ch. 38, par. 33B—2(a)), such requirements are not constitutionally mandated. (See Spencer v. Texas (1967), 385 U.S. 554, 565-66, 17 L. Ed. 2d 606, 615, 87 S. Ct. 648, 654.) Clearly, if the legislature had intended section 24— 1(b) to operate in a similar manner it could have so provided. Instead, the legislature has reenacted and amended the unlawful-use-of-weapons statute numerous times since this court’s decision in Pincham without proscribing evidence of the prior conviction until sentencing. (See, e.g., Ill. Rev. Stat. 1981, ch. 38, par. 24—1, amended by Pub. Act 82—119 sec. 1, eff. Jan. 1, 1982; Pub. Act 82—317 sec. 1, eff. Aug. 21, 1981; Pub. Act 82—343 sec. 1, eff. Jan. 1, 1982; Pub. Act 82—538 sec. 1, eff. Jan. 1, 1982; Ill. Rev. Stat., 1983 Supp., ch. 38, par. 24—1, amended by Pub. Act 82—783, art. Ill, sec. 19, eff. July 13, 1982, 1982 Ill. Laws 221, 274, Ill. Rev. Stat. 1983, ch. 38, par. 24—1, amended by Pub. Act 82—783, art. III, sec. 19, eff. July 13, 1982, 1982 Ill. Laws 221, 274, and Ill. Rev. Stat., 1983 Supp., ch. 38, par. 24—1, amended by Pub. Act 83—1056 sec. 1, eff. July 1, 1984.) Since the legislature is presumed to know the construction given this statute by the court, its reenactment is presumed to be an adoption of this court’s prior judicial construction. Williams v. Crickman (1980), 81 Ill. 2d 105, 111.
Most recently, the legislature has deleted, from section 24 — 1(b), the language which stated that a violation of any subsection of the statute by a recent felon constituted a Class 3 felony. (Ill. Rev. Stat., 1983 Supp., ch. 38, par. 24—1, amended by Pub. Act 83 — 1056 sec. 1, eff. July 1, 1984.) At the same time, the legislature created a separate offense entitled “Unlawful Use of Weapons by Felons.” (Ill. Rev. Stat., 1983 Supp., ch. 38, par. 24—1.1.) Under this new provision, the requirement that the offender be a felon is contained in subsection (a), along with all other elements of the offense. Subsection (b) merely provides that a violation of subsection (a) is a Class 3 felony. Although not applicable to the case at bar, we find that this subsequent legislation evidences the legislature’s approval of this court’s prior judicial construction.
We therefore reaffirm the soundness of the Ostrand line of cases, which have held that the prior conviction is an element of the crime and must be proved before the trier of fact, prior to a finding of guilt or innocence, in order to obtain a felony conviction for unlawful use of weapons. People ex rel. Carey v. Pincham (1979), 76 Ill. 2d 478; People v. Edwards (1976), 63 Ill. 2d 134.
For the foregoing reasons we affirm the judgment of the appellate court and remand both causes to the circuit court of Cook County for further proceedings consistent with the views expressed herein.
Affirmed and remanded.