Opinion by
Chief Judge DAVIDSON.T1 Petitioner, Paige Harte, appeals from the trial court's order denying her petition to seal her arrest and criminal records pertaining to an alcohol-related driving offense, under section 24-72-8308, C.R.S.2012 (the sealing statute). The issue we address is whether, under that statute, a successfully *1233completed deferred judgment constitutes a conviction. We hold that it does and, therefore, we affirm.
I. Background
12 Petitioner was charged with driving under the influence of alcohol under section 42-4-1801, C.R.S.2012. Pursuant to a plea agreement, she pleaded nolo contendere and received a twelve-month deferred judgment and sentence. By January 2011, she had successfully completed her deferred judgment and sentence, and the court dismissed her case.
13 Subsequently, petitioner petitioned the court to have her arrest and criminal records sealed pursuant to the sealing statute. The court denied her petition without a hearing, concluding that "entry of a guilty plea ... even pursuant to a stipulation for a deferred judgment, constitutes a conviction and precludes sealing." Petitioner appeals.
II. Legal Framework
4 4 Under the sealing statute, an interested person generally is eligible to seek the sealing of arrest and eriminal records, other than those relating to "convictions," in three situations:
T5 (1) when the person was not charged, (2) when the person was acquitted, or (3) when the case was completely dismissed. § 24-72-308(1)(a)(I), C.R.8.2012. The statute also provides certain exceptions to this general rule, including, as relevant here, that the court may not seal criminal records pertaining to a "conviction" for (1) violations of section 42-4-1801(1) or (2), C.R.S.2012, which are alcohol and drug-related driving offenses; (2) sexual offenses; or (8) driving offenses committed by the holder of a commercial driver's license. § 24-72-808(8)(a)(III), (c), (e), C.R.8.2012.
T 6 Petitioner argues that because she successfully completed her deferred judgment and sentence, which resulted in the dismissal of her case, she does not have a "conviction" under section 42-4-1801, and the aleohol-related driving offense exception does not apply to her. Therefore, she contends, the trial court erred by ruling that a successfully completed deferred judgment and sentence for an alcohol-related driving offense constitutes a conviction precluding record sealing under section 24-72-3808.
T7 We review the trial court's interpretation of the statute de novo. See M.T. v. People, 2012 CO 11, ¶ 8, 269 P.3d 1219. In interpreting statutes, our primary goal is to ascertain and give effect to the legislature's intent. Id. When the language of the statute is clear and unambiguous, we apply the statute as written, giving words and phrases their plain and ordinary meanings. Id. However, if the language is ambiguous, we may consider extrinsic sources to determine the legislature's intent. Id.
III. "Conviction" Generally
T 8 How "conviction" is defined depends on the particular statute in which it is used. See, e.g., People v. Jacquez, 196 Colo. 569, 571, 588 P.2d 871, 873 (1979) (because the statute in which it is contained controls its meaning, the definition of "conviction" " 'has run the gamut of proceedings from a plea of guilty or the verdict of a jury'" (quoting People v. Enlow, 135 Colo. 249, 255, 310 P.2d 539, 542 (1957))); see also Hafelfinger v. Dist. Court, 674 P.2d 375, 376 (Colo.1984) ("'The term 'conviction' may be interpreted differently depending upon the statute in which it is used and the issue in a particular case.").
T9 Thus, regardless of any plain meaning, "[the keynote is the legislative intent behind the use of the word in the statute in question." Jacques, 196 Colo. at 571 n. 2, 588 P.2d at 873 n. 2 (collecting cases); see People v. Atencio, 219 P.3d 1080, 1082 (Colo.App. 2009).
IV, MT.
110 The sealing statute does not define "conviction." See $ 24-72-808. Recently, however, the Colorado Supreme Court interpreted "conviction" as used in the sexual offenses exception to the sealing statute, § 24-72-8308(8)(c), which provides that a petitioner may not seal records pertaining to "a conviction of an offense for which the factual *1234basis involved unlawful sexual behavior." See MT., N1 9-19.
111 The court held that, as used in the sexual offenses exception, the term "conviction" includes a successfully completed and dismissed deferred judgment. Id. at T1. Thus, a petitioner who has had a conviction involving unlawful sexual behavior dismissed after successfully completing a deferred judgment is statutorily ineligible to have those records sealed. Id. at 1 1 21-22.
T 12 In reaching this conclusion, the court initially noted that the sealing statute does not allow records pertaining to any conviction to be sealed. Id. at 110. It also noted that, in a deferred judgment arrangement, a "court's acceptance of [a] guilty plea yields a conviction." Id. at 111; see People v. Kazadi, 284 P.3d 70, 75 (Colo.App.2011) (cert. granted 2011 WL 4014462 (Sept. 12, 2011)). However, upon successful completion of the terms of the deferred judgment, the guilty plea is withdrawn and the case is dismissed with prejudice. MT., 112; see § 18-1.3-102(2), C.R.S8.2012. Thus, the court concluded, "generally, a successfully completed and dismissed deferred judgment would enable a defendant to petition to seal records under the 'completely dismissed' category of the sealing statute." M.T., % 12.
' 13 The court then observed that the legislature excluded certain categories of convie-tions from this general rule. Id. Therefore, the court reasoned, "[in the context of the statute as a whole, an exception precluding the sealing of records 'pertaining to a convietion' would be meaningless if the term 'conviction' were not construed to include 'deferred judgment.!" Id. at 114. To interpret the term "conviction" otherwise would result in sexual offenses being treated the same as any other type of offense for sealing purposes, making the sexual offenses exception superfluous. See id. at 1913-14 nn. 2-8.
V. Petitioner's Argument
14 There is a definition of "conviction" in the penalty section of the DUI statute. That definition provides, as relevant here, that a "conviction" includes "having received a deferred judgment and sentence or deferred adjudication; except that a person shall not be deemed to have been convicted if the person has successfully completed a deferred sentence or deferred adjudication." § 42-4-1307(2)(a), C.R.S.2012.
1 15 Petitioner contends that M.T. is distinguishable from her case, and, therefore, that the penalty statute's definition of "conviction," which excludes a successfully completed deferred judgment, rather than M.T.'s definition, should control the definition of "conviction" in the alcohol-related driving offenses exception to the sealing statute. We disagree. For several reasons, we are not persuaded that the legislature intended to import the definition of "conviction" from the DUI penalty statute into the alcohol-related offenses exception to the sealing statute.
116 1. As discussed, the meaning of the word "conviction" depends on the statute in which the word is used. Here, the penalty statute and the sealing statute are contained in different statutory sections. See, eg., People v. Hampton, 876 P.2d 1236, 1239 (Colo.1994) ("The meaning of 'convietion' may vary depending on the statute in which it is used."); Hafelfinger, 674 P2d at 377-78 ("conviction" may be interpreted differently based on the statute in which it is used); Atencio, 219 P.3d at 1082 ("conviection" may have different meanings in different statutory sections).
117 2. The two statutes have different purposes. Compare People v. Wright, 43 Colo.App. 30, 32-33, 598 P.2d 157, 159 (1979) (purpose of the sealing statute, generally, is to preserve eriminal justice records without harmful effects to individuals), and Hearings on S.B. 95-127 before the S. Comm. on the Judiciary, 60th Gen. Assemb., 1st Sess. (Jan. 31, 1995) (need for access to records for alcohol- and drug-related driving offenses for which there is a basis of guilt is the concern for public safety) (Hearings on S.B. 95-127), with Hearings on H.B. 10-1847 before the H. Comm. on the Judiciary, 67th Gen. Assemb., 2d Sess. (Mar. 11, 2010) (purpose of the penalty statute is to address sentencing and treatment issues regarding repeat aleohol- and drug-related driving offenders) (House Comm. Hearings on H.B. 10-1347).
*1235{18 3. Neither statute cross-references the other. See People v. Day, 230 P.3d 1194, 1197 (Colo.2010) (cross-reference in sentence enhancing statute to a statute containing a specific offense shows clear intent for the sentence enhancement provision to apply to that offense); Frank M. Hall & Co. v. Newsom, 125 P.3d 444, 451 (Colo.2005) (multiple, specific cross-references show legislative intent to link two statutes); of. M.T., ¶¶ 15-20 (the legislative history shows consistent cross-referencing from the sealing statute's sexual offenses exception to the sexual offense statute's definitions subsection, despite numerous amendments to both; thus, the court concluded, "the legislature intended to incorporate the definition of conviction contained in the [sex offense statute]," and, in light of the consistent cross-reference to the sex offense statute's definitions subsection, the court further concluded that the absence of a cross-reference to the specific definition of "conviction" within that subsection was of no consequence).
T19 We assume that, had the legislature intended for the later-enacted definition of "conviction" in the DUI penalty statute to apply to the sealing statute, it would have amended one or the other statute, or both statutes, accordingly. See Colo. Ground Water Comm'n v. Eagle Peak Farms, Ltd., 919 P.2d 212, 218 (Colo.1996) ("We 'are not to presume that the legislative body used the language idly and with no intent that meaning should be given to its language'" (quoting in part McMillin v. State, 158 Colo. 183, 188, 405 P.2d 672, 674 (1965))); compare § 24-72-308(8)(a)(III) ("a conviction for a violation of section 42-4-1801(1) or (2), C.R.S."), with § 24-72-808(8)(c) ("a convietion of an offense for which the factual basis involved unlawful sexual behavior, as defined in section 16-22-102(9), C.R.S.").
$20 4. The relevant legislative history of the recent amendments to the DUI penalty statute does not indicate any intent that the definition of "conviction" apply to another statute. The purpose of the penalty amendments was to promote the consistent imposition and enforcement of aleohol- and drug-related driving offense penalties, particularly as to repeat offenders. See House Comm. Hearings on H.B. 10-1347; Hearings on H.B. 10-1347 before the H., 67th Gen. Assemb., 2d Sess. (Apr. 16, 2010) (Full House Hearings on H.B. 10-1847). The "convietion" definition was added to ensure that deferred judgments and sentences were included, so that the courts would more uniformly impose consistent penalties. See House Comm. Hearings on H.B. 10-1847. Indeed, the discussions reflect only that the legislature intended for this definition to apply within the four corners of the penalty statute. See, eg., id.; Full House Hearings on H.B. 10-1847; Hearings on H.B. 10-1347 before the S. Comm. on the Judiciary, 67th Gen. Assemb., 2d Sess. (May 3, 2010).
121 5. To the extent petitioner relies on the rules of statutory interpretation concerning irreconcilable statutes, they are inapplicable; the statutes do not conflict. "Conviction" is defined in the DUI penalty statute to make clear that if an offender successfully completes a deferred judgment arrangement for a first offense and then reoffends, courts must sentence for the second offense as if it was the first. See § 42-4-18307(2)(a), (8)-(6), C.R.8.2012. The legislature has separately determined in the sealing statute that, as a matter of law, the public's safety interest in having available an offender's alcohol-related driving record outweighs any privacy interest of that offender. See Hearings on S.B. 95-127.
VI. Our Interpretation
122 As did the court in M.T. concerning the sexual offenses exception to the sealing statute, we conclude that the legislature intended the definition of "conviction" in the alcohol-related driving offenses exception to the sealing statute to include a successfully completed deferred judgment.
A. Legislative History
123 The legislative history concerning each exception is helpful. The legislature perceived the same need to bar the sealing of records for the three different categories of offenses: to protect public safety and alert the public as to the identity of offenders who commit sexual offenses, alcohol-related offenses, and commercial driving offenses. To *1236accomplish this goal, the stated purpose of each exception, according to the legislative history, was to make records pertaining to such offenses available whenever there was a lawful finding or confession of guilt. See Hearings on H.B. 08-1121 before the H. Comm. on Transportation & Energy, 66th Gen. Assemb., 2d Sess. (Jan. 29, 2008) (ree-ords pertaining to convictions concerning commercial driving offenses); Hearings on H.B. 96-1181 before the H. Comm. on the Judiciary, 60th Gen. Assemb., 2d Sess. (Feb. 1, 1996) (records pertaining to convictions of sexual offenses); Hearings on S.B. 95-127 (records pertaining to convictions for aleohol-related driving offenses).
{$24 We presume the legislature knows the pre-existing law. See Leonard v. McMorris, 63 P.3d 323, 331 (Colo.2003). Thus, we conclude that, understood in this context, the legislative discussions-that records for these selected offenses be precluded from sealing so long as there has been a finding or confession of guilt-necessarily reference a deferred judgment and sentence arrangement, regardless of its later successful completion. See Hafelfinger, 674 P.2d at 377-78 (a conviction occurs upon the trial court's acceptance of the defendant's plea of guilty); People v. Kiniston, 262 P.3d 942, 944-45 (Colo.App.2011) (a conviction is the establishment of guilt by plea or verdict); see also People v. Darlington, 105 P.3d 230, 233 (Colo.2005) ("[F]or the purpose of a criminal case [including the availability of a deferred judgment arrangement], a plea of nolo con-tendere is fully equivalent to a plea of guilty.").
B. Additional Support for Our Interpretation
1 25 We also are persuaded that this is the correct result for two additional reasons.
26 First, to the extent that the court in M.T. decided that, because "convictions" generally are never subject to sealing, the meaning of "conviction" in the context of sexual offenses would be superfluous if it did not include successfully completed deferred judgments, the same logic applies here. See Larson v. Sinclair Transp. Co., 2012 CO 36, ¶ 29, 284 P.3d 42 ("We avoid constructions that would render words of the statute superfluous or yield illogical or absurd results.").
T27 Second, each of the exceptions to the sealing statute is found in the same statutory subsection and contains the same, identically phrased use of the term "conviction." Particularly in light of the legislative discussions, we simply do not accept that the legislature intended that an identical term used in sub-parts of the same statutory subsection should mean something different when each sub-part, according to the legislative history, has the same goal. See Pulsifer v. Pueblo Prof'l Contractors, Inc., 161 P.3d 656, 662 (Colo.2007) (where the same phrase is used in the same statutory section, the legislature must have intended it to have the same meaning); People v. Cooper, 27 P.3d 348, 349 (Colo.2001) (same). In that regard, although M.T. concerned only one of the three uses of the term "conviction," we are persuaded that that same definition should apply here.
28 Thus, we conclude that the legislature intended the term "conviction" to include petitioner's successfully completed deferred judgment. Consequently, we agree with the trial court that petitioner was statutorily ineligible to seek sealing of those records.
T 29 The order is affirmed.
Judge PLANK * concurs. Judge WEBB dissents.