FERREN, Associate Judge:
Appellant pleaded guilty on February 5, 1980 to charges of rape and first degree burglary, D.C.Code §§ 22-2801, -1801 (1973), respectively.1 The trial court ordered a study under the Federal Youth [305]*305Corrections Act, 18 U.S.C. § 5010(e) (1976), and continued the case for sentencing. On July 7, the trial court imposed consecutive sentences totaling fifteen to forty-five years. In early September 1980, appellant contacted the Public Defender Service (PDS) and requested that a PDS lawyer file a motion to reduce sentence. Super.Ct. Crim.R. 35.2 PDS agreed to represent him and filed the motion on November 3, 1980, 119 days after the trial court had imposed sentence.
On May 14, 1981, this court issued its opinion in United States v. Nunzio, 430 A.2d 1372 (D.C.1981), holding that the 120-day limit specified in Rule 35 (note 2 supra) was not a filing deadline but a jurisdictional limit on the trial court’s power to rule. On July 2, 1981, the trial court denied appellant’s Rule 35 motion, citing Nunzio for the proposition that the court “lack[ed] jurisdiction to modify the sentence because more than 120 days [had] elapsed since imposition of sentence on July 7, 1980.”
Appellant contends that: (1) his PDS attorney rendered ineffective assistance of counsel by filing the Rule 35 motion on the 119th day after sentencing; (2) he was denied his due process right to have the trial court consider the Rule 35 motion; and (3) he was deprived of equal protection of the laws by virtue of his indigency. In reversing, we address only the first two arguments.
1. Ineffective Assistance of Counsel
In United States v. Hamid, 461 A.2d 1043 (D.C.1983), this court reversed a trial court holding that retained counsel rendered “per se ineffective” assistance by filing a Rule 35 motion on the 118th day after sentencing. We held that the trial court’s inquiry into counsel’s alleged ineffectiveness was “legally irrelevant,” id., at 1045, in light of the Supreme Court’s decision in Wainwright v. Torna, 455 U.S. 586, 102 S.Ct. 1300, 71 L.Ed.2d 475 (1982) (per curiam).
In Torna, a criminal defense lawyer had filed his client’s petition for certiorari in the Florida Supreme Court one day late, and the client alleged ineffective assistance of counsel. The United States Supreme Court held that, because there was no constitutional right to counsel in pursuing state discretionary appeals, Ross v. Moffitt, 417 U.S. 600, 94 S.Ct. 2437, 41 L.Ed.2d 341 (1974), there could be no constitutionally deficient assistance of counsel. Torna, supra, 455 U.S. at 587-88, 102 S.Ct. at 1301-02. By analogy, this court held in Hamid, supra, that because there was no statutory or constitutional right to counsel for a Rule 35 motion, Burrell v. United States, 332 A.2d 344 (D.C.), cert. denied, 423 U.S. 826, 96 S.Ct. 42, 46 L.Ed.2d 43 (1975),3 there could be no constitutionally ineffective assistance. Appellant’s Sixth Amendment claim is identical to the claim rejected in Hamid and accordingly must fail here.
II. Due Process
Appellant’s Fifth Amendment due process argument proceeds as follows: There is a due process right to have the trial court consider a Rule 35 motion, and appellant was deprived of that right either (a) because his government-supplied lawyer filed the motion late, or (b) because the trial court erred in applying Nunzio retroactively to appellant’s pre-Nunzio motion.
A.
As a threshold matter, we agree that:
[306]*306Appellant had a due process right to have the trial court consider his Rule 35 motion. See Connecticut Board of Pardons v. Dumschat, 452 U.S. 458, 467 [101 S.Ct. 2460, 2465, 69 L.Ed.2d 158] (1981) (state system of discretionary parole “conferred no rights on [prisoners] beyond the right to seek commutation”). Moreover, in giving appellant the right to seek a reduction of sentence, the state gave more than a right to file a piece of paper; it granted an opportunity to present the motion “ ‘at a meaningful time and in a meaningful manner.’ ” Logan v. Zimmerman Brush Co., 455 U.S. 422 [102 S.Ct. 1148, 71 L.Ed.2d 265] (1982) (quoting Armstrong v. Manzo, 380 U.S. 545 [85 S.Ct. 1187, 14 L.Ed.2d 62] (1965)).
United States v. Hamilton, 465 A.2d 843, 844 (D.C.1983) (per curiam) (Ferren, J., dissenting).
The trial court need not provide a defendant with counsel, Hamid, supra, 461 A.2d at 1044, or in every case afford a hearing, since the court typically will have heard evidence in mitigation at the original sentencing and thus the risk of an uninformed ruling will be slight. Id. at 1046 (Ferren, J., dissenting in part and concurring in the judgment only). A defendant, however, will not receive an opportunity to present the motion in a “meaningful manner,” Logan v. Zimmerman Brush Co., 455 U.S. 422, 437, 102 S.Ct. 1148, 1158-59, 71 L.Ed.2d 265 (1982), unless that defendant at least can receive a ruling on a timely filed motion. The trial court’s discretion to decide is not discretion to ignore; the court must affirmatively exercise the discretion the law affords. See Dorszynski v. United States, 418 U.S. 424, 94 S.Ct. 3042, 41 L.Ed.2d 855 (1974) (even though sentencing under Federal Youth Corrections Act is discretionary, and the trial court need not explain its decision, the failure to exercise discretion with explicit finding as to whether eligible youth would benefit from FYCA treatment is reversible error); Brooks v. United States, 458 A.2d 66 (D.C.1983) (where trial court was unable to rule during probation period on motion for early discharge and set aside under Federal Youth Corrections Act, the “spirit of the Youth Act” required remand so that trial court would have an affirmative opportunity to exercise discretion.)4
B.
Thus, we turn to appellant’s argument that his counsel’s late filing violated due process by depriving him of his right to a ruling on a timely filed Rule 35 motion. In Torna, supra, petitioner argued that the Florida Supreme Court had deprived him of due process by declining to review his cer-tiorari petition, filed late by retained counsel. The Supreme Court dismissed the claim on state action grounds:
Respondent was not denied due process of law by the fact that counsel deprived him of his right to petition the Florida Supreme Court for review. Such deprivation — if even implicating a due process interest — was caused by his counsel, and not by the State. Certainly, the actions of the Florida Supreme Court in dismissing an application for review that was not filed timely did not deprive respondent of due process of law.
455 U.S. at 588 n. 4, 102 S.Ct. at 1301 n. 4. Appellant argues that his claim is distinguishable because he was represented by a government-supplied PDS lawyer instead of by retained counsel. Thus, according to appellant, the deprivation caused by coun-[307]*307seis late filing was state action, and his claim, accordingly, survives Toma.
We reject this analysis. In Lugar v. Edmondson Oil Co., Inc., 457 U.S. 922, 102 S.Ct. 2744, 73 L.Ed.2d 482 (1982), the Supreme Court held that “conduct satisfying the state action requirement of the Fourteenth Amendment satisfies the statutory requirement of action under color of state law [42 U.S.C. § 1983].” Id. 102 S.Ct. at 2753 n. 18. In Polk County v. Dodson, 454 U.S. 312, 102 S.Ct. 445, 70 L.Ed.2d 509 (1981) the Court held that a public defender does not act “under color of state law,” 42 U.S.C. § 1983, in representing a criminal defendant. If conduct satisfying the state action requirement necessarily satisfies the under-color-of-state-law requirement, Lu-gar, supra, and if the conduct involved here (representing an indigent defendant) does not satisfy the under-color-of-state-law requirement, Polk County, supra, then it follows logically that the conduct involved here cannot satisfy the state action requirement.
C.
Appellant argues, alternatively, that, given standard Superior Court practice, his Rule 35 motion was timely filed, and thus the trial court’s retroactive application of Nunzio, supra, violated his due process right to a ruling.
As a rule, due process neither requires nor forbids giving retroactive effect to the decisions of an appellate court. Linkletter v. Walker, 381 U.S. 618, 628-29, 85 S.Ct. 1731, 1737-38, 14 L.Ed.2d 601 (1965); Great Northern Ry. Co. v. Sunburst Oil & Refining Co., 287 U.S. 358, 364-65, 53 S.Ct. 145, 148-49, 77 L.Ed. 360 (1932). The Supreme Court, however, has recognized a due process limitation on a state court’s ability to apply retroactively a case overturning precedent that defined the procedure a party followed in asserting his or her rights. In Brinkerhoff-Faris Co. v. Hill, 281 U.S. 673, 50 S.Ct. 451, 74 L.Ed. 1107 (1930), a taxpayer sued to enjoin collection of a tax that allegedly violated the Equal Protection clause. State precedent had allowed similar suits. The Supreme Court of Missouri held that the taxpayer should have sought relief from the State Tax Commission and, having failed to do so, was barred by laches from proceeding in court. Six years earlier, the same court had held that the Tax Commission lacked the power to grant the relief sought; and, by the time the overruling decision came down, the time for proceeding to the Tax Commission had passed. The United States Supreme Court reversed, holding that the state had to provide the taxpayer with an opportunity to assert his claim on the merits:
Our present concern is solely with the question whether the plaintiff has been accorded due process in the primary sense,—whether it has had an opportunity to present its case and be heard in its support. Undoubtedly, the state court had the power to construe the statute dealing with the State Tax Commission; and to reexamine and overrule the Lac-lede [Land & Improvement Co. v. State Tax Commission, 295 Mo. 298, 243 S.W. 887 (1922)] case. Neither of these matters raises a federal question; neither is subject to our review. But, while it is for the state courts to determine the adjective as well as the substantive law of the State,, they must, in so doing, accord the parties due process of law. Whether acting through its judiciary or through its legislature, a State may not deprive a person of all existing remedies for the enforcement of a right, which the State has no power to destroy, unless there is, or was, afforded to him some real opportunity to protect it.
281 U.S. at 681-82, 50 S.Ct. at 454 (foot notes omitted).
Since Brinkerhoff-Faris, the Supreme Court has made it clear that due process protects not only rights “which the State has no power to destroy,” such as the taxpayer’s equal protection claim, but also entitlements grounded in state law. See, e.g., Board of Regents v. Roth, 408 U.S. 564, 92 S.Ct. 2701, 33 L.Ed.2d 548 (1972); Gold[308]*308berg v. Kelly, 397 U.S. 254, 90 S.Ct. 1011, 25 L.Ed.2d 287 (1970). Moreover, once the state has conferred a right, the Constitution sets limits on the state’s ability to define the procedures which must be afforded for its protection. Logan, supra, 455 U.S. at 432, 102 S.Ct. at 1155; Vitek v. Jones, 445 U.S. 480, 491, 100 S.Ct. 1254, 1262, 63 L.Ed.2d 552 (1980).
In Logan, supra, petitioner challenged the constitutionality of the Illinois Fair Employment Practices Act, which required the Illinois Fair Employment Commission to hold a factfinding hearing within 120 days of the timely filing of a discrimination complaint. Through inadvertence, the Commission had scheduled the hearing on petitioner’s complaint after the 120 days had passed. The Illinois Supreme Court held that the 120-day limit in the state statute was jurisdictional, and thus the Commission lacked the power to consider the merits of petitioner’s claim. The Supreme Court reversed on due process grounds and remanded for a hearing on the merits, noting that “[a] system or procedure that deprives persons of their claims in a random manner, ... necessarily presents an unjustifiably high risk that meritorious claims will be terminated.. .. ” 455 U.S. at 434-35, 102 S.Ct. at 1157.5 The “system” under attack here is the retroactive application of Nunzio to all Rule 35 motions, filed within 120 days of sentencing, that were pending on the day Nunzio was issued. If retroactivity is allowed, then all motions, meritorious and frivolous, will be dismissed out of hand.
Broadly stated, Brinkerhoff-Faris and Logan stand for the proposition that the state cannot, consistent with due process, grant an adjudicative right and then, after a party fully complies with the procedures prescribed for asserting the right, dismiss the action because the party — without fault, and at the instance of the state itself — slips out of compliance with the state’s procedural rules. The present case is not necessarily governed by Brinkerhoff-Faris and Logan, however, for there was nothing to prevent appellant from filing his Rule 35 motion early enough to assure a ruling before the 120 days had expired.
Nonetheless, it appears to have been standard Superior Court practice for lawyers to file Rule 35 motions toward the end of the 120-day period, and for judges to rule on these motions after the 120-day period had closed. Hamid, supra, 461 A.2d at 1047-48 & n. 8 (Ferren, J., dissenting in part and concurring in the judgment only).6 Nunzio, supra, unquestionably represented a break with precedent in this jurisdiction. At the time appellant’s counsel filed his Rule 35 motion, every federal court that had decided the question had construed the 120-day limit as a filing deadline.7 Moreover, this court repeatedly had sanctioned this same construction.8 Thus, for all prac[309]*309tical purposes, appellant — encouraged by decisions of this court and the federal courts — found himself in the same position as the petitioner in Brinkerhoff-Faris, ousted from court by a newly-announced rule after he had reasonably relied on a different, generally followed and approved practice.
Rather than resolve the constitutional question, we find it more appropriate to use the due process gloss as background for an alternative analysis, based on this court’s supervisory authority over the administration of justice. In criminal and civil cases, the Supreme Court “has accorded the lower federal and state courts wide latitude to employ such approaches as deemed appropriate in formulating responses to the retro-spectivity-prospectivity problem.” Mendes v. Johnson, 389 A.2d 781, 788 (D.C.App. 1978) (en banc). As guidance, the Court has stressed that lower courts should determine, first, whether the rule at issue does present a prospectivity question — whether there is, in fact, “a clear break with the past.” Desist v. United States, 394 U.S. 244, 248, 89 S.Ct. 1030, 1033, 22 L.Ed.2d 248 (1969); accord United States v. Johnson, 457 U.S. 537, 549, 102 S.Ct. 2579, 2587, 73 L.Ed.2d 202 (1982); Brodis v. United States, 468 A.2d 1335 (D.C.App.1983). If not, retroactive application is usually called for. See Johnson, supra, 457 U.S. at 560, 102 S.Ct. at 2593. But if there is such a clear break, the courts may opt for prospectivity, see id., depending on the history of the rule in question, the purpose of the change, the extent of reliance on the old rule, and the effect retrospective or prospective application will have on the administration of justice. E.g., Chevron Oil v. Huson, 404 U.S. 97, 106-07, 92 S.Ct. 349, 355-56, 30 L.Ed.2d 296 (1971) (civil); Halliday v. United States, 394 U.S. 831, 832, 89 S.Ct. 1498, 1498-99, 23 L.Ed.2d 16 (1969) (per curiam) (criminal); Stovall v. Denno, 388 U.S. 293, 297, 87 S.Ct. 1967, 1970, 18 L.Ed.2d 1199 (1967) (criminal); Linkletter, supra, 381 U.S. at 629, 85 S.Ct. at 1737 (criminal).
In the context of a civil case, this court has drawn upon Supreme Court precedent, added other criteria, and adopted a four-factor test for evaluating whether a new rule of law should apply retroactively, or only prospectively. In Mendes, supra, we announced we will consider:
(1) the extent of the reliance of the parties on the old rule (including the degree of justifiable reliance and the hardship which might result to the litigants as a result of retrospective application); (2) avoidance of altering vested contract or property rights; (3) the desire to reward plaintiffs who seek to initiate just changes in the law; and (4) the fear of burdening the administration of justice by disturbing decisions reached under the over-ruled precedent.
389 A.2d at 789 (footnote omitted).
Because Nunzio, supra, is a “clear break with the past,” Desist, supra, 394 U.S. at 248, 89 S.Ct. at 1033; Brodis, supra, at 1337, we apply the four Mendes factors, properly tailored for a criminal case.9 First, appellant’s reliance on the pre-Nunzio understanding of Rule 35 is obvious. No competent lawyer would have waited until the 119th day after sentencing unless he or she had reason to believe the 120 days was a filing deadline, not a jurisdictional limitation on the trial court’s power to act. Moreover, in light of the prevailing practice [310]*310in the trial court, we cannot say that appellant’s reliance on the old rule was unreasonable. See notes 6-8, supra. The government, too, while urging retrospective application of Nunzio, has until recently treated the 120 days as a filing deadline. See Hamid, supra, 461 A.2d at 1047-48 (Ferren, J., dissenting in part and concurring in the judgment only). In short, given the defense counsel’s, the government’s, and the court’s consistent reliance on the 120-day limit as a filing deadline, any retrospective application of Nunzio will “‘disrupt[] a practice long accepted and widely relied upon.’ ” Brodis, supra, at 1337 (quoting Johnson, supra, 457 U.S. at 552, 102 S.Ct. at 2588) (footnote omitted).
Second, although appellant has no property or contract right at stake here, Mendes, supra, 389 A.2d at 790, he has a liberty interest in a trial court ruling on a timely filed motion, supra at 1338 & n. 4, that would be forfeited by retroactive application of Nunzio. This factor therefore militates in favor of nonretroactivity.
Third, the rationale for “rewarding” parties who successfully advocate a change in the law, by applying the change retroactively for their benefit, is that absent the possibility of such a “reward” a party will have no incentive to advocate change. The government, however, is an “institutional litigant.” Mendes, supra, 389 A.2d at 791. It will gain the benefit of Nunzio in the Rule 35 motions filed thereafter.10 An institutional litigant need not be rewarded for advocating change, since it “will continue to reap the benefits of a new rule of law in succeeding cases.” Mendes, supra, 389 A.2d at 791.
Finally, a decision in favor of appellant (and of criminal defendants similarly situated) would not adversely affect the administration of justice. This is not a case which would require a large number of evidentia-ry hearings after the reopening of criminal cases years after the convictions, when memories had faded and evidence had been lost. See, e.g., Stovall v. Denno, 388 U.S. 293, 300, 87 S.Ct. 1967, 1971, 18 L.Ed.2d 1199 (1967); Tehan v. United States ex rel. Shott, 382 U.S. 406, 418-19, 86 S.Ct. 459, 466-67, 15 L.Ed.2d 453 (1966); Linkletter, supra, 381 U.S. 618, 637-38, 85 S.Ct. 1731, 1741-42. Here, the trial court will only have the burden of considering motions already docketed. The only convicted defendants affected by today’s holding are those caught in the time squeeze of Nunzio, i.e., the finite number of defendants who had filed Rule 35 motions in reliance on the previous interpretation of the rule shortly before Nunzio and were waiting for rulings at the time Nunzio was issued.11 The government has not argued that this number is large. Thus, prospectivity would not burden the court system or prosecutorial interests.
Retroactivity, however, would substantially burden the finite, presumably small number of convicted defendants. In this situation, therefore, prospectivity is the better course. See Niziolek v. Ashe, 694 F.2d 282 (1st Cir.1982) (holding Rose v. Lundy, 455 U.S. 509, 102 S.Ct. 1198, 71 L.Ed.2d 379 (1982), requiring exhaustion of all state claims in federal habeas corpus petitions, nonretroactive where “the number of cases caught in the time warp is both finite and small”). The purpose of Rule 35 is to allow the trial court to consider, after further reflection, whether the sentence originally imposed was too harsh in light of the defendant’s pretrial conduct. The purpose of the 120-day limit is to prevent the court from assuming the functions of a parole board by considering post-trial factors such as a favorable prison record and strong indications of rehabilitation. Nunzio, supra, 430 A.2d at 1375. If Nunzio were applied retroactively, the purpose of the 120-day limit would be served, but the purpose of the rule itself would be ignored. If [311]*311Nunzio were applied prospectively, the purpose of the rule can be served without undermining the purpose of the limit, since the trial court may not wait an unreasonable period of time before ruling. See cases cited in note 7 supra.
III.
In summary, Nunzio represents a clear break with precedent. Appellant’s reliance on the prior interpretation of the 120-day limit in Rule 35 as a filing deadline and the reasonableness of that reliance weigh strongly in favor of prospectivity, as does the fact that appellant stands to lose a protected liberty interest if we apply Nun-zio retroactively. Moreover, prospectivity will not adversely affect the administration of justice, since prosecutorial and court interests will not be burdened by the finite number of convicted defendants whose rights to Rule 35 rulings will be preserved. Finally, the other Mendes factor — desire to reward a litigant who advances the development of the law — does not militate strongly in favor of retroactivity. Nor has the government suggested any other factor that does so.
In taking this approach, we take basically the same approach the division of this court recently took in Brodis, supra, giving prospective effect to the Robinson, supra, decision interpreting another Superior Court criminal rule.
Accordingly, we hold that the trial court was not barred from ruling on the merits of appellant’s Rule 35 motion; and, in view of our prospectivity ruling, we further hold that other convicted defendants who had filed Rule 35 motions within the prescribed 120 days either before Nunzio, or shortly after Nunzio having demonstrable reliance on the prior interpretation of the rule (see note 10 supra), shall also receive the benefit of our decision here. We reverse and remand for further proceedings consistent with this opinion.
So ordered.