opinion of the Court:
1 In this case we are asked to answer a certified question from the United States Court of Appeals for the Tenth Cireuit concerning the preclusive effect of a decision like that in Fundamentalist Church of Jesus Christ of Latter-Day Saints v. Lindberg,
I
1 2 The certified question presented stems from litigation surrounding a Utah probate court's 2005 reformation and subsequent administration of a charitable religious trust formed by the predecessor to the Fundamentalist Church of Jesus Christ of Latter-Day Saints. At the time of the initial proceedings culminating in the reformation of the trust, plaintiff, an association of individual members of the FLDS church and beneficiaries of the trust (the FLDSA), declined to intervene or participate in the litigation. When the FLDSA eventually sought to attack the reformation years later, it did so on two fronts.
13 First, in October 2008, the FLDSA filed a complaint in the United States District Court for the District of Utah, asserting various state and federal constitutional challenges to the trust reformation and administration and seeking declaratory and injune-tive relief. Eventually, the FLDSA moved for a temporary restraining order and a preliminary injunction against court administration of the trust. At that point, the federal court, upon agreement from the parties, stayed its proceedings "until the parties either reached a settlement or resumed the matter in court." Fundamentalist Church of Jesus Christ of Latter-Day Saints v. Wisan,
14 The federal court then lifted its stay and invited further briefing on the motions pending there. After that briefing, the federal district court issued a memorandum opinion and order in February 2011 granting the FLDSA's preliminary injunction. Wisan,
1 5 Unable to find any such analysis in the Lindberg opinion, the federal district court then determined that "the [FLDSA] ha[d] not yet had a forum in which their claims of serious constitutional violations have been entertained or addressed sufficiently to earn a finding that they were on the merits." Id. at 1241. In addition, the court concluded that the FLDSA was substantially likely to succeed on its constitutional claims, id. at 1233-34, and that those claims were not time-barred under its independent laches analysis, id. at 1286-88. The court accordingly granted the FLDSA's request for a preliminary injunction on those grounds, id. at 1244, and Defendants/Appellants appealed to the United States Court of Appeals for the Tenth Circuit.
T6 The Tenth Circuit, recognizing that "the proper course in Utah is not well marked," formally certified to us its question about the state of Utah preclusion law. We now respond to that query.
II
17 The posture of a matter certified to us by a federal court is unusual. "[TJradi-tional standards of review do not apply" because we are not asked "to affirm or reverse a lower court's decision."
1 8 Thus, we disagree at least in part with the FLDSA's request that we answer the certified question abstractly and without reference to the circumstances of the Lindberg case. Our function in a certified case is not to issue abstract, advisory opinions on general matters of interest to the federal courts. It is to resolve disputed questions of state law in a context and manner useful to the resolution of a pending federal case.
T9 The certified question presented undoubtedly implicates our decision in Lind-berg. And our resolution of that question can fulfill its purpose of facilitating the disposition of the underlying federal case only if our analysis is informed by and addresses the particular context in which the question arises.
11 With this in mind, our discussion below evaluates the preclusive effect of a decision like Lindberg in a purely state law context-as in a case similar to the current one but filed in a district court of the State of Utah. We do so, however, not in the abstract but in consideration of the facts and cireum-stances of Lindberg.
III
112 Claim preclusion is one of two branches of the judicially created doctrine known as res judicata. Mack v. Utah State Dep't of Commerce, Div. of Secs.,
113 This doctrine serves three important purposes: First, it "preservies] the integrity of the judicial system by preventing inconsistent judicial outcomes; [second, it] promotes] judicial economy by preventing previously litigated issues from being reliti-gated; and [third, it] protect[s] litigants from harassment by vexatious litigation." See Gudmundson v. Del Ozone,
First, both [suits] must involve the same parties or their privies. Second, the claim that is alleged to be barred must have been presented in the first suit or be one that could and should have been raised in the first action [because it arose from the same transaction or operative facts]. Third, the first suit must have resulted in a final judgment on the merits.
Mack,
T14 The FLDSA argues that Lindberg does not satisfy this test and thus has no res judicata effects because it was not a "final judgment on the merits." In the FLDSA's view, a decision like Lindberg falls short because it (1) stems from this court's discretionary jurisdiction over extraordinary writs; (2) did not properly examine each element of a laches affirmative defense; (8) resulted from inadequate or improper factual analysis; and (4) dismissed on laches grounds constitutional claims that are not subject to that affirmative defense.
115 We find none of these points sufficient to undermine the preclusive effect of a decision like that in Lindberg. Upon rejecting each of the FLDSA's arguments, we hold that Lindberg would preclude a subsequent action on the same claims by the same parties if filed in the Utah courts.
A
116 The FLDSA's first point focuses on the discretionary nature of our extraordinary writ jurisdiction. It emphasizes that a pre-clusive judgment must be "on the merits," and insists that a decision like that in Lind-berg does not qualify because it involves only
{ 17 The Utah Constitution confers on this court "original jurisdiction to issue all extraordinary writs." Uran Const. art. VIII, § 3.
18 As the FLDSA notes, "a petitioner seeking rule 65B(d) extraordinary relief has no right to receive a remedy that corrects a lower court's mishandling of a particular case." State v. Barrett,
€ 19 The FLDSA seeks to paint our Lind-berg decision with this brush. Since some denials of extraordinary writs are based on the availability of an alternative remedy, the FLDSA insists that Lindberg was that kind of decision-and thus one that was not "on the merits" for claim preclusion purposes. That is not an accurate characterization of our decision in Lindberg. We did not dismiss the petition in that case based on the availability of an alternative remedy; we did so in light of our resolution of the merits of the respondents' affirmative defense of lach-es.
120 That sort of decision is "on the merits" for res judicata purposes. -It is well settled that the discretionary character of an extraordinary writ proceeding "does not, ipso facto, preclude a judgment rendered therein from operating as res judicata in another action or proceeng.
[91 % 21 The FLDSA reads Lindberg as falling in the latter category, citing a sentence in our opinion in which we "decline[d] to reach the merits of [its] claims." Fundamentalist Church of Jesus Christ of Latter-Day Saints v. Lindberg,
11 22 Our case law defines "the merits" for res judicata in light of rule 41 of the Utah Rules of Civil Procedure. Under rule 41(b):
Unless the court in its order for dismissal otherwise specifies, a dismissal under this subdivision and any dismissal not provided for in this rule, other than a dismissal for lack of jurisdiction or for improper venue or for lack of an indispensable party, operates as an adjudication upon the merits."10
As we indicated in Madsen v. Borthick, rule 41 "comprehensively define[s] a dismissal on the merits."
T 23 The case law under federal rule 41
124 As a general rule, dismissals resulting from an "initial bar" to the court's adjudication of the parties' claims and defenses are not preclusive. See Costello v. United States,
[25 When an initial bar exists, the court has authority to opine only on the law and facts surrounding its own power.
T26 Under these standards, we have no hesitation in concluding that a dismissal based on laches is a judgment on the merits under rule 41 and thus preclusive in Utah courts.
B
127 The FLDSA next points to the fact that the Lindberg court's laches decision nowhere considered the merits of the underlying constitutional claims. That fact forecloses the preclusive effect of Lindberg, in the FLDSA's view, under the standard set forth in Papanikolas Brothers Enterprises v.
T 28 We disagree. This argument is based on a misunderstanding of our laches precedent and law of preclusion, which we now take occasion to clarify. First, we explain that the origin of "harm to the plaintiff" as a factor in a laches analysis is suspect and conclude that weighing "harm to the plaintiff" has no place in our general laches jurisprudence. Second, and in view of this holding, we reject the FLDSA's argument that a proper laches analysis must examine the relative strength or weakness of a plaintiff's underlying claim. That kind of analysis is not merely unnecessary; it is forbidden.
129 The doctrine of laches "is 'based upon [the] maxim that equity aids the vigilant and not those who slumber on their rights'" CIG Exploration, Inc. v. State,
130 It is true, as the FLDSA indicates, that there is stray dicta in Papamikolas suggesting that "harm to the plaintiff" is a factor in a laches analysis. See id.; see also Fundamentalist Church of Jesus Christ of Latter-Day Saints v. Lindberg,
the relative harm to defendant, in view of plaintiff's delay, if he is required to remove the structure which violates the covenant; the relative harm to the plaintiff, if he is confined to an action for damages; the proximity of the expiration date of the covenant; and the defendant's good faith, or the absence thereof; in connection with his violation of the covenant.
Id. (emphasis added). Papamikolas cited an American Law Reports annotation
131 The Papanikolas notion of "harm to the plaintiff" is best understood not as a component of laches, but as part of a broader, equity-based inquiry that is particular to certain real property disputes. In these disputes, "harm to the plaintiff" is a factor that
T32 Valhouli v. Coulouras,
Delay for an unreasonable length of time in bringing the suit after knowledge of the breach may be the basis for the equitable defense of laches, particularly where a mandatory injunction is being sought. This is particularly so in view of the further finding that the relative hardship in granting relief to the plaintiffs was disproportionate to the benefit secured thereby. Thus a combination of laches and disproportion between harm and benefit may have the effect of causing the denial of an injunction when neither alone would have caused such denial.
Id. at 718 (citations and internal quotation marks omitted).
33 Papanikolas can and should be read as attempting to accomplish the same result. Indeed, the A.L.R. annotation cited in Pa-panikolas for the "harm to the plaintiff" factor confirms that the Papamikolas court was attempting to articulate Valhoult's "lach-es plus disproportionate harm equals denial of injunction" standard.
34 In addition to making good sense, this view of Papamikolas has the added virtue of being consistent with how Utah courts have actually applied that case. Apart from our opinion in Lindberg,
136 At most, Papanikolas countenances an evaluation of "harm to the plaintiff, if he is confined to an action for damages."
137 A different result-one where a court's recognition of meritorious claims could defeat a laches defense-would be antithetical to the whole point of the doctrine of laches. Laches is designed to shelter a prejudiced defendant from the difficulties of litigating meritorious claims after an unexplained delay.
T 38 If laches required this showing, prejudice would be built into a doctrine established to prevent it. Specifically, unavailable or long-lost evidence and witnesses-long recognized as prejudice-causing results of delay
139 Thus, the Lindberg court's failure to consider the merits of the FLDSA's claims in its laches analysis is neither fatal nor rele
C
140 The FLDSA next argues that this court's factual analysis in Lindberg was insufficient to sustain the preclusive effect of that decision. Because a finding of laches depends "on the circumstances of each case," Papanikolas Bros. Enters. v. Sugarhouse Shopping Cir. Assocs.,
$41 When a court rules on a petition for extraordinary writ, it exercises original jurisdiction. See Gates v. Taylor,
determination of whether this court may adjudicate a petition is not unlike a district court's decision to grant summary judgment. Where a petition is presented on uncontroverted material facts ... and it is otherwise appropriate for this court to exercise its jurisdiction to issue extraordinary relief, it may issue a judgment on the merits.
Id. 15.5
T42 At oral argument, counsel for the FLDSA acknowledged that the dispositive facts supporting the Lindberg court's laches decision-those concerning unexplained delay - and - prejudice-were - undisputed. Though the FLDSA took exception to the way these facts were documented in the ree-ord, it acknowledged that all of the parties supposed that they existed.
{43 The FLDSA's arguments to the contrary smack of sour grapes. By submitting its extraordinary writ petition to the Lind-berg court, the FLDSA implicitly certified that all the facts necessary to decide the
$44 That the FLDSA now insists that the Lindberg court's factual analysis was faulty is suspect, particularly given its reliance on the federal district court's contrary resolution of the laches question. The federal district court held no evidentiary hearing and made no findings of fact. Yet the FLDSA has no dispute with that court's determination that there was no basis for application of the doctrine of laches, a determination the FLDSA lauds as "appropriate, legally correct, and within that court's jurisdiction to decide." In context, it appears that the FLDSA's real complaint is not that Lindberg was factually flawed, but that it didn't go its way. But of course the preclu-sive effect of our decision in Lindberg does not depend on the FLDSA's satisfaction with it. Indeed, "(claim preclusion] rests on a determination that justice is better served by attributing finality to judgments ... than by second efforts at improved results." Shoup v. Bell & Howell Co.,
T 45 We therefore conclude that this court's factual analysis in Lindberg was proper and in no way impairs the preclusive effect of that decision. The submissions of both parties and the complete record from the probate proceedings provided an adequate factual basis from which to make a laches determination. That the FLDSA now regrets that outcome cannot alter its preclusive effect.
D
146 The FLDSA's final challenge to the preclusive effect of Lindberg is rooted in its notion that Establishment Clause claims are somehow immune from the reach of a laches time bar. Specifically, the FLDSA asserts that the Establishment Clause is a "structural" restraint of government power that arises "from the constitution's division of power between the states and the federal government and its branches"-a restraint not subject to waiver or interest balancing because it "delineate[s] non-transgressable limits on government action." - And, in the FLDSA's view, if a government actor cannot waive structural violations, a litigant's right to complain about those violations is likewise not subject to timebar.
147 This argument falters on the ground that it confuses a government branch's ina bility to ratify unconstitutional power-grabs with a litigant's perpetual right to prosecute structural constitutional claims. The cases cited by the FLDSA simply conclude that a branch of government cannot waive infringement or enlargement of its constitutional powers.
48 The FLDSA tries to unite them with the idea that the "passage of time, even with
€ 49 As Hair illustrates, the idea that lapse of time cannot validate wrongfully exercised power is far from unique to structural constitutional violations, as the FLDSA insists. Indeed, it is theoretically applicable to every case-even the most pedestrian civil cases between private individuals-that is dismissed as time-barred. Any litigant so dismissed could claim that the court ratifies the offensive conduct in doing so and has, effectively, conferred on its opponent power to engage in the offensive conduct.
{50 In reality, however, dismissal of a structural constitutional claim-or any claim, for that matter-on laches grounds is not a validation of power. A time-bar dismissal does not imply a simultaneous determination of governmental power to act outside constitutional bounds. It merely indicates that a particular litigant has forfeited a right to complain about such ultra vires acts. So while the government actor may escape punishment in one instance, any continuing or ongoing violation subjects it to further suits by litigants-perhaps even the same litigant-who diligently pursue their claims.
€51 Our opinion in Lindberg recognized this principle. Specifically, we held that the FLDSA's challenge to the trust reformation was barred and included in that holding the majority of the FLDSA's claims because they "either occurred before or as part of the district court's modification of the [tJrust."
152 For these reasons, we are not persuaded that so-called structural constitutional violations are any less subject to time-bar than are garden-variety constitutional claims.
IV
T53 For the foregoing reasons, we conclude that a decision like the one reached in Lindberg-dismissing an extraordinary writ on laches grounds-would preclude a subsequent claim brought in Utah courts.
Notes
. This court "has original jurisdiction to answer questions of state law certified by a court of the United States." Ura Cope § 78A-3-102(1). Rule 41 of the Utah Rules of Appellate Procedure governs this court's efforts when answering such questions.
. See Egbert v. Nissan Motor Co.,
. See, e.g., McArthur v. State Farm Mut. Auto. Ins. Co.,
. Petersen v. Riverton City,
. See 18 Aran WricHt & Arthur R. Mircer, FEperar Practice Anp Proceoure - Jurispiction § 4405 (2d ed.) (''The first court does not get to dictate to other courts the preclusion consequences of its own judgment.").
. See Utax Cope § 78A-3-102(2) ('The Supreme Court has original jurisdiction to issue all extraordinary writs and authority to issue all writs and process necessary to carry into effect its orders, judgments, and decrees or in aid of its jurisdiction.").
. See State v. Laycock,
. ET. Tsai, Annotation, Judgment Granting or Denying Writ of Mandamus or Prohibition as Res Judicata, 21 AL.R.3d 206 (1968).
. See United States v. Dean,
. - As this rule suggests, the res judicata effect of a dismissal is dictated by the grounds for and not the form of the court's decision. So, to answer the circuit court's question about the significance for preclusion law of a written opinion, we conclude that such an opinion may be informative but that it is hardly dispositive. Thus, the existence of a written opinion is significant only insofar as it demonstrates the grounds for the decision. An oral dismissal from the bench could be preclusive if it were on the merits, just as a written decision would not qualify as prectu-sive if it were not on the merits.
. Urau R. Civ P. 41(b); see Miller v. USAA Cas. Ins. Co.,
. Rule 41(b) of the Federal Rules of Civil Procedure provides, in part: "Unless the dismissal order states otherwise, a dismissal under this subdivision (b) and any dismissal not under this rule-except one for lack of jurisdiction, improper venue, or failure to join a [necessary party]operates as an adjudication on the merits."
. See Bichler v. DEI Sys., Inc.,
. Semtek declined to read federal rule 41 to extend a step further-to dictate how a federal court's dismissal should be treated in a second, different jurisdiction. Semtek Int'l, Inc. v. Lockheed Martin Corp.,
We accordingly decline to address the authorities cited by the FLDSA raising the question whether a time-bar dismissal in state court, though preclusive there, would bind a federal court presented with the same claim. The case law is in some disarray on this matter, with some courts finding a state time-bar dismissal preclu-sive of subsequent federal litigation, see, eg., Seavey v. Chrysler Corp.,
. See Costello v. United States,
. See Rinehart v. Locke,
. See Nat'l Crime Reporting, Inc. v. McCord & Akamine, L.L.P.,
. See Cook v. Peter Kiewit Sons Co.,
. See Murphy v. A/S Sobral,
. "Merits" is an unfortunate and potentially confusing term as used here. In this opinion, we discuss both "final judgments on the merits," supra 116-26, and "the merits of underlying claims," supra 127; infra (1436-39. These two conceptions of "merits" are different and should not be conflated. The first sense of merits is concerned with identifying the grounds upon which a dismissal rests; the second with the viability-as suggested by relevant facts and appropriate law-of claims made. One has nothing to do with the other, and the standards we detail today for one have no bearing on the standards applicable to the other.
. RD. Hursh, Annotation, Lackes or Delay in Bringing Suit as Affecting Right to Enforce Restrictive Building Covenants, 12 ALR2d 394 (1950).
. See id. (listing cases described as "holding that injury which would result to defendant as a result of the granting of an injunction outweighs that which is caused plaintiff by violation of the restrictive building covenant").
. See Cherry v. Bd. of Home Missions of Reformed Church in U.S.,
. Though Lindberg mentions Papanikolas's "harm to the plaintiff" factor as being part of a laches inquiry, it does so as a supplement to the more general, accepted laches factor test. See Fundamentalist Church of Jesus Christ of Latter-Day Saints v. Lindberg,
. See, eg., Plateau Mining Co. v. Utah Div. of State Lands & Forestry,
. See, e.g., Johnson v. Hermes Assocs.,
. See Hamilton v. Dooly,
. See Jones Mining Co. v. Cardiff Mining & Milling Co.,
. See Young v. W. Piling & Sheeting,
. On this score, we are in accord with the Arizona Supreme Court's holding in Day v. Estate of Wiswall,
. Except in situations where a special master is appointed. See Carpenter v. Riverton City,
. See Moreau v. Lewis,
. See Carpenter,
. Our decision in Renn v. Utah State Board of Pardons supports this result.
. See, e.g., Commodity Futures Trading Comm'n v. Schor,
. See, e.g., Perry v. Judd,
. See Southside Fair Hous. Comm. v. City of New York,
