
101 P.3d 364 (2004)
196 Or. App. 302
Lloyd Hubert WILLIAMSON, Appellant,
v.
Robert SCHIEDLER, Superintendent, Two Rivers Correctional Institution, Respondent.
CV 011659; A119549.
Court of Appeals of Oregon.
Argued and Submitted June 28, 2004.
Decided November 24, 2004.
Irene B. Taylor, Deputy Public Defender, argued the cause for appellant. With her on the brief were Peter A. Ozanne, Executive Director, and Peter Gartlan, Chief Defender, Office of Public Defense Services.
Timothy A. Sylwester, Assistant Attorney General, argued the cause for respondent. With him on the brief were Hardy Myers, Attorney General, and Mary H. Williams, Solicitor General.
Before EDMONDS, Presiding Judge, and WOLLHEIM and SCHUMAN, Judges.
WOLLHEIM, J.
Petitioner appeals a judgment dismissing his petition for post-conviction relief. He argues that his trial counsel was inadequate because, at sentencing, counsel failed to object to petitioner's sentence on the ground that the sentence violated the 200 percent rule. OAR XXX-XXX-XXXX(2)(b). We review the post-conviction court's judgment for errors of law and for evidence to support its *365 findings, Smart v. Maass, 148 Or.App. 431, 434, 939 P.2d 1184, rev. den., 326 Or. 62, 944 P.2d 949 (1997), and reverse.
Petitioner was indicted for (1) one count of manufacture of a controlled substance (MCS), ORS 475.992(1)(b); (2) one count of delivery of a controlled substance (DCS), ORS 475.992(1)(b); (3) two counts of possession of a controlled substance (PCS), ORS 475.992(4)(b); and (4) 17 counts of being a felon in possession of a firearm, ORS 166.270. The indictment further alleged that the MCS, DCS, and PCS counts were commercial drug offenses, based on evidence that petitioner possessed over $300 in cash, packaging materials, manufacturing paraphernalia, and unlawfully possessed firearms. ORS 475.996(1)(b).[1]
A jury convicted petitioner on all of the MCS, DCS, and PCS counts and on eight of the 17 felon in possession of a firearm counts. In finding petitioner guilty of the MCS, DCS, and PCS offenses, the jury returned a special verdict, making specific findings that petitioner possessed over $300 in cash, packaging materials, manufacturing paraphernalia, and unlawfully possessed firearms. The sentencing court ordered petitioner to serve 26 months on the MCS conviction; 26 months on the DCS conviction; 12 months each on the two PCS convictions; and 12 months on each of the eight convictions for being a felon in possession of a firearm. The sentencing court specifically found that petitioner's DCS conviction "created a risk of causing greater or qualitatively different loss, injury or harm to a different victim than was caused or threatened by the other offenses." See ORS 137.123(5). Accordingly, the sentencing court ordered petitioner to serve the MCS and DCS sentences and one of the eight felon in possession of a firearm sentences consecutively to each other, but ordered the rest of the sentences to run concurrently. Thus, petitioner's sentence totaled 64 months. The sentencing court made no findings as to why it ordered the felon in possession of a firearm sentence to be served consecutively, and trial counsel made no objection.
In his petition for post-conviction relief, petitioner argued that his trial counsel was inadequate because trial counsel failed to object to the sentence imposed by the court as violating the 200 percent rule. OAR XXX-XXX-XXXX(2)(b). The post-conviction court rejected petitioner's argument, concluding that the 200 percent rule was inapplicable because "the crimes did not arise out of one single criminal episode and did not arise from the same continuous and uninterrupted course of conduct." Thus, the post-conviction court found that trial counsel was not inadequate.
Petitioner argues that the post-conviction court erred in determining that his sentence did not violate the 200 percent rule. Specifically, petitioner argues that, because he was sentenced to 26 months on the primary offense and because his conviction for being a felon in possession of a firearm was part of the same criminal episode as the other offenses, the maximum sentence he could have received was 52 months. Thus, petitioner argues, because trial counsel did not make that argument to the sentencing court, trial counsel was constitutionally inadequate. The state responds, first, that petitioner's claim is moot since he has been released from prison and is currently serving his term of post-prison supervision (PPS). Second, the state argues that the felon in possession of a firearm convictions were not part of the same criminal episode. The state reasons that, where the jury found that petitioner also possessed over $300, manufacturing paraphernalia, and packaging materials, it was not necessary for the jury also to have found that petitioner unlawfully possessed firearms in committing his drug offenses.
We first address the state's argument that petitioner's claim is moot because he has been released from prison and is now serving his term of PPS. In order for a matter to be a justiciable controversy, a decision in the matter has to "have some practical effect on the rights of the parties to the controversy." Brumnett v. PSRB, 315 Or. 402, 405, 848 P.2d 1194 (1993). In Baty v. Slater, 161 Or.App. 653, 984 P.2d 342 (1999) (Baty I), *366 adh'd to on recons., 164 Or.App. 779, 995 P.2d 1176 (Baty II), rev. den., 331 Or. 191, 18 P.3d 1098 (2000), we considered whether the petitioner's appeal from the post-conviction court's dismissal of his petition for post-conviction relief was moot because the petitioner had been released from prison and was serving his term of PPS. Basing our decision on the doctrine of collateral consequences, we stated:
"For guideline offenders, OAR XXX-XXX-XXXX(3) provides that the term of post-prison supervision commences upon completion of the offender's prison term. The earlier the term of imprisonment ends, the earlier the term of post-supervision both begins and ends. Therefore, * * * a correct determination of plaintiff's entitlement to credit for time served on his probationary sentence against the term of incarceration on his revocation sentence does directly affect the overall length of that sentence, including post-prison supervision. For that reason, our decision on the merits would have a practical effect on the rights of the parties and plaintiff's appeal is not moot."
Baty I, 161 Or.App. at 656-57, 984 P.2d 342 (emphasis in original).
The state moved for reconsideration of our decision in Baty I, but we adhered to that decision. Baty II, 164 Or.App. at 782, 995 P.2d 1176. In doing so, we rejected the state's arguments that, under OAR XXX-XXX-XXXX, an offender is required to "serve the term of supervision in the community," and that an offender cannot begin serving the term of PPS while still in prison. Baty II, 164 Or.App. at 781-82, 995 P.2d 1176. We held that OAR XXX-XXX-XXXX only "establishes post-prison supervision administrative responsibilities," and that OAR XXX-XXX-XXXX determines when the term of PPS actually commences; it commences when the term of imprisonment is legally completed. Baty II, 164 Or.App. at 782, 995 P.2d 1176.
The state now asks us to overrule our decisions in Baty I and II, pointing us to United States v. Johnson, 529 U.S. 53, 120 S.Ct. 1114, 146 L.Ed.2d 39 (2000). In Johnson, the United States Supreme Court was presented with a similar question, namely, whether a defendant who had been incarcerated for a longer period than he legally should have been incarcerated could be given credit for that extra time served towards his supervised release term. The Court examined language in the Federal Sentencing Guidelines stating that supervised release begins when an individual "is released from imprisonment." Id. at 57, 120 S.Ct. 1114. Based on the plain language of the Federal Sentencing Guidelines, the Court held that the period of supervised release does not begin until a defendant is actually released from prison; "[t]o say respondent was released while still imprisoned diminishes the concept the word intends to convey." Id. The state argues that, consistently with the Court's decision in Johnson, any decision in this case lacks practical effect on petitioner's rights because, regardless of any error in the imposition of his prison terms, his term of PPS began on the date he was actually released from prison.
The language used in the Federal Sentencing Guidelines is different from the language used in the Oregon Sentencing Guidelines. Under the Federal Sentencing Guidelines, supervised release begins only when an individual is released from imprisonment. Under the Oregon Sentencing Guidelines, the term of PPS begins "upon completion of the offender's prison term." OAR XXX-XXX-XXXX. If the Oregon Sentencing Guidelines used the same language as the federal guidelines, we would agree that Johnson would be persuasive. Because the language of the two sentencing guidelines schemes is not the same, however, the result in this case is not the same as in Johnson. As stated in Baty I and II, the completion date of an offender's prison term is the date the term is "legally completed." Baty II, 164 Or.App. at 782, 995 P.2d 1176. Petitioner's case is not moot.
Turning to the merits, we address petitioner's argument that his trial counsel was inadequate for failing to argue that petitioner's sentence violated the 200 percent rule. In order to establish that trial counsel was inadequate, petitioner must show, "by a preponderance of the evidence, facts demonstrating that trial counsel failed to exercise reasonable professional skill and judgment and that *367 petitioner suffered prejudice as a result." Trujillo v. Maass, 312 Or. 431, 435, 822 P.2d 703 (1991).
We first consider whether trial counsel failed to exercise professional skill and judgment in not arguing to the sentencing court that petitioner's sentence violated the 200 percent rule. OAR XXX-XXX-XXXX(2)(b) provides, in part, that
"[t]he total incarceration term of the consecutive sentences, including the incarceration term for the primary offense, shall not exceed twice the maximum presumptive incarceration term or the prison term defined in OAR XXX-XXX-XXXX(1) imposed pursuant to a dispositional departure of the primary sentence except by departure as provided by OAR XXX-XXX-XXXX."
Although this requirement is not mentioned in the rule, in order for the 200 percent rule to apply, petitioner's convictions must have been part of a single criminal episode. State v. Miller, 317 Or. 297, 305-06, 855 P.2d 1093 (1993). The term "criminal episode" is a term of art and is defined by ORS 131.505(4) as "continuous and uninterrupted conduct that establishes at least one offense and is so joined in time, place and circumstances that such conduct is directed to the accomplishment of a single criminal objective."
In State v. Fore, 185 Or.App. 712, 717, 62 P.3d 400 (2003), we determined that the phrase "same act or transaction" as used in ORS 132.560(1)(b)(B), the permissive joinder statute, is synonymous with the phrase "same criminal episode." Accordingly, the test used to determine what constitutes a "same act or transaction" also applies to determine what constitutes a "same criminal episode." Fore, 185 Or.App. at 717, 62 P.3d 400. "`[T]wo charges arise out of the same act or transaction if they are so closely linked in time, place and circumstance that a complete account of one charge cannot be related without relating details of the other charge.'" Id. (quoting State v. Fitzgerald, 267 Or. 266, 273, 516 P.2d 1280 (1973)). It follows that two charges are part of the same criminal episode "`[i]f a complete account of one charge necessarily includes details of the other charge[.]'" Id. (quoting State v. Boyd, 271 Or. 558, 566, 533 P.2d 795 (1975)).
Given the way that this case was pleaded and proved, a complete account of the charges for manufacturing, delivery, and possession necessarily includes details of the felon in possession of a firearm charges in order to make the controlled substances counts commercial drug offenses. ORS 475.996(1)(b)(C). Not only was unlawful possession of a firearm alleged in the indictment on the manufacturing, delivery, and possession counts, but the jury was asked to make specific findings that petitioner unlawfully possessed firearms in connection with those crimes, which the jury did. See State v. Bush, 174 Or.App. 280, 290-91, 25 P.3d 368 (2001), rev. den., 334 Or. 491, 52 P.3d 1057 (2002) ("same act or transaction" language in indictment did not compel trial court to find that the offenses occurred during the "same criminal episode" when the jury did not make specific findings to that effect). Thus, a complete account of the commercial drug offenses cannot be made without relating details of the facts supporting the felon in possession of a firearm charges.
The state argues that a complete account of the drug charges can be given without including the details of the felon in possession of a firearm charges because the jury could have convicted petitioner of the commercial drug offenses without making a specific finding that he unlawfully possessed a firearm. However, simply omitting the fact that the jury found that petitioner unlawfully possessed firearms as part of the commercial drug offenses would not provide a complete account of the charges. But see Bush, 174 Or.App. at 291, 25 P.3d 368 (disregarding "same act or transaction" language in indictment was not error because the indictment still alleged complete offenses).
It follows, then, that the charges against petitioner occurred in the same criminal episode and that the 200 percent rule applied. The maximum prison term petitioner could have received was 52 months. There were no risks to petitioner's case in making such an objection, and the potential benefits, if successful, would have meant a 12-month *368 reduction in petitioner's incarceration. See Burdge v. Palmateer, 187 Or.App. 295, 301, 67 P.3d 397, rev. allowed, 336 Or. 125, 79 P.3d 882 (2003) (trial counsel was inadequate for not raising objections where objection would not have had any risk to petitioner and had substantial potential benefits). Therefore, we conclude that reasonably competent defense counsel would have objected that petitioner's sentence violated the 200 percent rule. Trial counsel failed to do so and, thus, "failed to exercise reasonable professional skill and judgment [.]" Trujillo, 312 Or. at 435, 822 P.2d 703.
Petitioner still must show that he was prejudiced by trial counsel's inadequacy. In order to show prejudice, petitioner must show that trial counsel's ineffectiveness had a "tendency to affect the result of the prosecution * * *." Lichau v. Baldwin, 333 Or. 350, 359, 39 P.3d 851 (2002) (emphasis in original). As explained before, our decisions in Baty I and II establish that petitioner's term of PPS began on the date he legally completed his prison sentence. Trial counsel's error thus had the effect of making petitioner serve a longer incarceration term and a longer overall sentence than he would otherwise be legally required to; petitioner's prison term should have ended and his term of post-prison supervision should have began to run 52 months after he was incarcerated, 12 months before the date it actually did. Therefore, petitioner is entitled to post-conviction relief.
Reversed and remanded for entry of judgment granting post-conviction relief.
NOTES
[1]  ORS 475.996 requires that the state prove at least three of 11 enumerated factors in order to convict a defendant of a commercial drug offense. Here, the state alleged and proved those four factors.
