OPINION
¶ 1 In these consolidated special actions, petitioners Jeremy Sean O’Brien and April Luette Stockton ask us to decide whether the November 2002 amendment by referendum of A.R.S. § 13-901.01(E), which allows a criminal defendant convicted of a “Proposition 200” offense to be incarcerated under certain circumstances, may be applied retroactively to a defendant whose offense was committed before November 25, 2002, the effective date of the amendment,
see
article IV, pt. 1, § 1(5), Ariz. Const., but who violated the conditions of probation after that date. The other issue O’Brien raises is whether our supreme court’s decision in
State v. Estrada,
SPECIAL ACTION JURISDICTION
¶ 2 In their underlying criminal cases, petitioners were convicted of first-time drug offenses subject to Proposition 200 and were placed on probation pursuant to § 13-901.01(A). After subsequently finding that both petitioners had violated the conditions of their probation, the respondent judge imposed a new condition of probation by ordering them to serve ninety-day jail terms. This court stayed the respondent judge’s orders pending our consideration of these special actions.
¶ 3 In light of the pending jail terms, which would be served by the time any appeal could be heard, petitioners do not have an equally plain, speedy, or adequate remedy by appeal.
See
Ariz. R.P. Special Actions 1(a), 17B A.R.S.;
see also Green v. Superior Court,
BACKGROUND
¶ 4 In October 2001, Stockton pled guilty to solicitation to possess a narcotic drug, a class six, open-ended offense that she committed in January 2001. She was placed on probation for three years in November 2001 pursuant to § 13-901.01(A). On December *461 11, 2002, Stockton admitted she had violated her conditions of probation by failing to inform a probation officer that she had changed her residence, leaving the drug treatment facility where she had been residing, and not completing court-ordered community service. At a disposition hearing on December 31, the respondent judge continued Stockton’s probation and ordered her to serve a ninety-day jail term as an additional condition of probation.
¶ 5 O’Brien was convicted pursuant to a plea agreement of solicitation to possess a narcotic drug and possession of drug paraphernalia based on offenses he committed in June 2001. He was placed on probation in July. On January 15, 2003, after finding O’Brien had violated his probation conditions by committing new drug-related offenses, the respondent judge extended O’Brien’s probationary period and ordered him to serve a ninety-day jail term.
DISCUSSION
I. Retroactive Application of Amended § 13-901.0KE)
¶ 6 Both petitioners’ convictions were subject to Arizona’s “Drug Mediealization, Prevention, and Control Act of 1996,” commonly known as Proposition 200, a ballot initiative passed by the electorate in 1996 and codified as A.R.S. § 13-901.01.1997 Ariz. Sess. Laws, pp. 2895-2904.
See generally Estrada; State v. Tousignant,
A person who has béen placed on probation under the provisions of this section and who is determined by the court to be in violation of probation shall have new conditions of probation established by the court. The court shall select the additional conditions it deems necessary, including intensified drug treatment, community service, intensive probation, home arrest, or any other such sanctions short of incarceration.
1999 Ariz. Sess. Laws, ch. 261, § 11. As Division One of this court has noted, that subsection “require[d] that Proposition 200 probation violators be reinstated on probation with additional conditions,” and “incarceration [wa]s not an available option.”
Tousignant,
¶ 7 By a referendum election held on November 5, 2002, the voters approved H.C.R. 2013 (2002), commonly known as Proposition 302, which amended § 13-901.01(E). That subsection now provides:
A person who has been placed on probation pursuant to this section and who is determined by the court to be in violation of probation shall have new conditions of probation established by the court. The court shall select the additional conditions it deems necessary, including intensified drug treatment, community service, intensive probation, home arrest or any other sanctions except that the court shall not impose a term of incarceration unless the court determines that the person violated probation by committing an offense listed in chapter 34 or 34.1 of this title or an act in violation of an order of the court relating to drug treatment.
Thus, the amended statute currently permits sentencing judges to incarcerate a person convicted of a first-time, Proposition 200 offense who later commits certain "violations of the terms of his or her probation.
¶ 8 Both O’Brien and Stockton objected to the imposition of jail terms as probationary conditions, arguing that the amended version of § 13-901.01(E) did not apply because it was not in effect at the time they committed their offenses. O’Brien further argued that applying the amended statute to him as authorizing the imposition of a jail term violat.ed the constitutional prohibition against the enactment of ex post facto laws.
1
See
U.S. Const, art. I, § 10, el. 1; Ariz. Const, art. II, § 25. Petitioners reassert these argu
*462
ments in their special actions, contending the respondent judge exceeded her authority by ordering them to serve a jail term. In its response, real party in interest State of Arizona reviewed the applicable law but opted to “not present an argument supporting the trial court’s orders at issue.” At oral argument in this court, however, the state conceded error. “Although we are not required to accept the state’s confession of error,”
State v. Dominguez,
¶ 9 Section § 1-244, A.R.S., states that “[n]o statute is retroactive unless expressly declared therein.” Neither Proposition 302 nor its resulting amendment to § 13-901.01(E) includes any such express declaration. Additionally, A.R.S. § 1-246 provides:
When the penalty for an offense is prescribed by one law and altered by a subsequent law, the penalty of such second law shall not be inflicted for a breach of the law committed before the second took effect, but the offender shall be punished under the law in force when the offense was committed.
That statute “is a clear and unequivocal expression of legislative intent that an offender’s punishment is to be determined when he commits his offense.”
Baker,
¶ 10 We must first determine whether the respondent judge actually gave retroactive effect to § 13-901.01(E), as amended, contrary to §§ 1-244 and 1-246. When an amended statute “alters the legal consequences of a prior conviction, § 1-244 is implicated.”
State v. Griffin,
¶ 11 Preliminarily, we agree with Stockton, and the state does not disagree,' that “a statute authorizing the incarceration of ... individual[s and] depriving them of their liberty deals with substantive rights.”
See id.
at ¶ 18. By ordering petitioners to serve jail terms based on the amended statute, the respondent judge disturbed a vested, substantive right of petitioners by altering the legal consequences of their convictions as those consequences existed at the time Stockton and O’Brien committed their offenses, January 11 and June 20, 2001, respectively. At the time petitioners committed the offenses that resulted in their convictions and placement on probation, § 13-901.01(D) and (E) circumscribed sanctions that could be imposed initially as a condition of probation or for a subsequent violation of probationary conditions. And, the statute then in effect specifically prohibited sentencing judges from incarcerating defendants convicted for the first time of a Proposition 200 offense, either initially or as an additional condition of probation if the defendant violated probationary conditions.
See Calik v. Kongable,
¶ 12 Similarly, § 1-246 required the respondent judge to apply the law in effect at the time petitioners committed their offenses. In rejecting O’Brien’s arguments at his disposition hearing that the application of amended § 13-901.01(E) to him violated the *463 prohibition against the enactment of ex post facto laws, the respondent judge stated, “imposing jail as a sanction for violating probation ... is not a sentence or a penalty for an offense.” On the solicitation offenses, however, the respondent judge had no authority to impose a jail term as a new condition of probation because a jail term is a penalty for the underlying offense for purposes of § 1-246.
¶ 13 That a jail term constitutes a sanction is clear, albeit that it may be imposed as a condition of probation.
See State v. Fuentes,
¶ 14 Our conclusion that a jail term as a condition of probation is a penalty for purposes of § 1-246 is supported by
State v. Mendivil,
¶ 15 Moreover, to the extent the respondent judge imposed the jail terms as punishment for the violations of probation rather than for the underlying offenses, she lacked the authority to do so.
2
Although a court may impose a new condition of probation, or revoke probation and impose an authorized sentence on the underlying conviction, courts are not authorized to newly punish a defendant for the subsequent violation of the conditions of probation.
State v. Herrera,
¶ 16 As noted above, O’Brien also contends application of the amended version of § 13-901.01(E) to his probation violation disposition violates the state and federal constitutional prohibitions against the enactment of ex post facto laws. Because both § 1-244 and § 1-246 compel us to conclude that the version of the statute in effect at the time petitioners committed their offenses determines the sanctions that may be imposed, we do not address the constitutional issue.
See State v. Coconino County Superior Court,
II. Application of Estrada to Prior Paraphernalia Convictions
¶ 17 In November 2001, our supreme court held in
Estrada
that the sentencing provisions of Proposition 200 apply to persons convicted a first and second time of possessing drug paraphernalia for personal use. Acknowledging that the relevant statutes do not specifically include possession of paraphernalia among the offenses for which Proposition 200 expressly mandates probation and prohibits incarceration, the court nevertheless included it. The court reasoned that, “[f]rom time to time, ... we encounter circumstances in which the plain text of a statute, because of ambiguity or outright silence, fails to give effect to the legislature’s obvious intent. As importantly, we interpret and apply statutory language in a way that will avoid an untenable or irrational result.”
Proposition 200’s intent provisions, which explicitly call for treatment rather than incarceration of first time drug offenders in order to reduce drug use and preserve prison space for more dangerous criminals, make it clear that the electorate, acting in the role of the legislature, did not intend to incarcerate for the lesser offense and yet mandate probation for the more serious.
Id. at ¶ 20.
¶ 18 The' court in
Estrada
did not state whether its decision applied to defendants who had committed paraphernalia offenses before that decision was filed.
“A
court is neither
required
nor prohibited from applying a decision retrospectively,” and “a state court may make the choice for itself between prospective or retrospective application of its decisions.”
State v. Gates,
¶ 19 For his paraphernalia offense, O’Brien’s plea agreement provided that “as a condition of probation the defendant may be incarcerated 12 months in the Pima County Jail.” 3 The agreement further provided that, if O’Brien was later determined to have violated his conditions of probation, the court could impose additional conditions, one of which was “any other such sanctions within the jurisdiction of the court.”
¶ 20 The respondent judge noted at O’Brien’s disposition hearing that his plea agreement expressly permitted her to impose any sanction within her jurisdiction in the event O’Brien violated his probation conditions; she concluded that a jail term was within her jurisdiction, particularly because O’Brien had committed the paraphernalia offense before the supreme court’s decision in Estrada. But if Estrada applies to O’Brien’s disposition, then, as the state suggested in its response and implicitly conceded at oral argument, the foregoing provisions of the plea agreement are void, and the respondent judge exceeded her authority by imposing the jail term on that offense after O’Brien violated his conditions of probation. O’Brien argues that, “[bjeeause the court’s holding in Estrada concerned the meaning of §' 13-901.01, the holding applie[s] to those who had committed drug offenses before Estrada was decided.” We agree.
¶ 21
Estrada
was riot a change in the law, procedural or substantive, for purposes of retroactivity analysis. Consequently, we are not required to apply the federal retroactivity analysis in
Teague v. Lane,
¶22 We find this situation analogous to that faced by the court in
State v. Arizona Department of Corrections,
We did not change the meaning of § 13-604 in Tarango, we simply construed its meaning and its application to those who were sentenced under it. To hold that § 13-604 meant something different for inmates sentenced prior to Tarango would be a logical impossibility. Simply put, there is no retroactivity issue here.
¶23 Similarly, “there is no retroactivity issue” raised by the question of whether Estrada applies to O’Brien. Id. Having concluded that the electorate could not have intended to exclude from the scope of Proposition 200 a charge of possession of drug paraphernalia for personal use, the court in Estrada merely declared what the law had always been intended to include. Consequently, the provisions of O’Brien’s plea agreement that provide otherwise and permit imposition of a jail term either initially or upon the violation of conditions of probation are void. Cf. Coy (because plea agreement provided illegally long term of probation, trial court was required to impose shorter term in accordance with statutes and state could not withdraw from agreement). And because the state has confessed error and, at least implicitly, has conceded that the proper remedy here is to disallow the imposition of a period of incarceration, we strike the void portions of the plea agreement.
CONCLUSION
¶ 24 We conclude that the amended version of § 13-901.01(E) that resulted from the passage of Proposition 302 may not be applied retroactively to either Stockton or O’Brien to authorize the imposition of a jail term as an additional condition of probation. Nor may O’Brien be ordered to serve such a term based on his conviction for possession of drug paraphernalia for personal use. The respondent judge exceeded her authority by ordering petitioners to serve jail terms as an additional condition of probation after having found that they had violated their conditions of probation. We therefore grant special action relief by vacating the relevant portions of the respondent judge’s orders in both cases and striking the relevant provisions of O’Brien’s plea agreement.
Notes
. Only O’Brien provided this court the transcript of the disposition hearing.
. As she had at O’Brien's disposition hearing, the respondent judge stated in her minute entry for that hearing that she had imposed jail time "as a sanction for violating the conditions of probation.”
. That provision apparently was based on
State v. Holm,
