On this аppeal we decide whether an automobile liability insurance carrier providing uninsured motorist coverage may intervene as of right as a party defendant in a tort action between its insured and an uninsured motorist tortfeasor. The trial court denied intervention; we reverse.
The facts are not in dispute. In July of 1977 plaintiff, Barbara Lima, was involved in an automobile collision with defendant Earl Chambers, an uninsured motorist. Lima brought a negligence action against Chambers, an answer was filed, and discovery ensued. Thereafter, Chambers’ attorney withdrew from the case. The following day Chambers executed an affidavit prepared by plaintiff’s attorney acknowledging thаt he was uninsured and admitting that he had caused the collision with plaintiff Lima. On the basis of that admission, plaintiff moved for and obtained a summary judgment on the issue of defendant’s liability, leaving the question of damages to be decided at trial. Thereafter, plaintiff’s liability insurer, Prudential Property & Casualty Insurance Company (Prudential), which is contractually liable for a judgment against an uninsured motorist, moved to intervene as a party defendant in the litigation of the damages issue. Apparently considering our prior decision in
Kesler v. Tate,
Prudential appeals, urging that we overrule Kesler and allow intervention because (1) it will be bound by a judgment against the uninsured motorist arid denial of intervention therefore violates its constitutional right to due process; and (2) Rule 24, Utah R.Civ.P., governing intervention, entitles it to intervene as of right. Plaintiff Lima counters that Kesler was decided correctly, that Prudential has only a potential contractual obligation to plaintiff with no interest in the pending tort action, and therefore, that neither due process nor Rule 24 requires Prudential’s intervention.
I.
Utah Code Ann., 1953, § 41-12-21.1 requires that automobile liability insurance policies include coverage for accidents with uninsured motorists:
[N]o automobile liability insurance policy insuring against loss resulting from liability imposed by law for bodily injury or death or property damage suffered by any person arising out of the ownership, maintenance or use of a motor vehicle, shall be delivered ... unless coverage is *281 provided in such policy ... for the protection of persons insured thereunder who are legally entitled to recover damages from owners or operators of uninsured motor vehicles and hit-and-run motor vehicles because of bodily injury, sickness or disease, including death, resulting therefrom. [Emphasis added.]
Thus, if an insured is injured by an uninsured motorist, the insured may recover damages from his own insurance company upon showing that he is “legally entitled” to recover those damages from the uninsured tortfeasor. This showing of legal entitlement typically entails a lawsuit against the uninsured tortfeasor to litigate the issues of liability and damages. A judgment favorable to the insured fixes the insurer’s contractual duty to satisfy that judgment, within the policy limits. The insurer is then left to pursue its subrogation remedy against the uninsured tortfeasor.
Because of the direct effect of the tort litigation on the insurer’s contractual duty, both insureds and insurers have sought, under certain circumstances, to involve the insurer in the tort litigation. Insureds have pressed for intervention to make the tort judgment binding on the insurer, and insurers have sought intervention to make certain the tort issues are fully and fairly litigated. Three different attempts have been made in this Court to involve an uninsured motorist insurance carrier in the tort litigation between the insured and the uninsured tortfeasоr.
The first attempt was in
Christensen v. Peterson,
II.
The overwhelming majority of courts have allowed an uninsured motorist insurance carrier to intervene in a tort action between its insured and an uninsured tortfeasor. See,
e.g., Oliver v. Perry,
*282 Intervention of right is asserted in this case under Rule 24(a)(2). 1 By the terms of that rule, an applicant must be allowed to intervene if four requirements are met: 1) the application is timely; 2) the applicant has an interest in the subject matter of the dispute; 3) that interest is or may be inadequately represented; and 4) the applicant is or may be bound by a judgment in the action. The timeliness of the application to intervene in the hearing on damages in this case has not been challenged and is deemed satisfied. The remaining requirements are discussed in order.
1. To justify intervention, the party seeking intervention must demonstrate a direct interest in the subject matter of the litigation such that the intervenor’s rights may be affected, for good or for ill. In
State v. Craig,
Mo.App.,
[The required] interest does not include a mere, consequential, remote or conjectural possibility of being in some manner affected by the result of the original action. It must be such a direct claim upon the subject matter of the action that the intervenor will either gain or lose by direct operation of the judgment to be rendered.
Id.
at 346.
See also State Farm Mutual Automobile Ins. Co. v. Brown,
The court in
State v. Craig, supra,
held that an insurer providing uninsured mоtorist insurance has such a direct and immediate interest because the insurer “should have the right to dispute the questions which make it liable on its contract.”
It is apparent that the questions litigated [in] the action between the insured and the uninsured tort-feasor, for liability and damages, are the identical issues which determine liability of Protective under the insurance policy and which give rise to Protective’s contractual duty to pay the insured. Protective has a direct interest in the matter of litigation within the meaning of our intervention statute.
Clearly the basis of the action by Mat-ney [insured] against Vernon [insurer] is contractual. Hоwever, any action on the contract is inseparably tied to the legal liability of Thoms [uninsured tortfeasor]. Therefore, the initial action in which the liability of Thoms is determined is but the first link in an unbroken chain leading to the contractual liability of Vernon.
Id. 351
N.E.2d at 64.
See also Continental Ins. Co.
v.
Smith,
We agree with the reasoning of the authorities cited and conclude that since the extent of Prudential’s contractual liability to its insured will be determined by the amount of damages awarded to its insured in the tort action, Prudential stands to lose by the operation of that judgment, and therefore has sufficient interest in that action to justify intervention.
2. The next issue is whether Prudential’s interest is or may be inadequately *283 represented by the existing parties. Sincе Prudential, if allowed, would intervene as a party defendant, the question is narrowed to whether the uninsured motorist, Chambers, would adequately represent Prudential’s interest in actively litigating the issue of damages. Prudential argues that its interest is inadequately represented because Chambers lacks the assistance of counsel and prоposes to litigate the damages issue pro se. Because of Chambers’ ready admission of liability resulting in the summary judgment establishing Chambers’ liability, Prudential has a reasonable basis for anticipating that the damages issue will not be fully and fairly litigated without Chambers’ personal liability for the judgment provides sufficient incentive to keep the damagеs low. Lima also argues that the burden of proof placed on him, coupled with the close supervision of the trial court, will ensure a just judgment.
Adequacy of representation generally turns on whether there is an identity or divergence of interest between the potential intervenor and an original party and on whether that interest is diligently represented.
Alsbach v. Bader,
Mo.App.,
Closely related to the question of similarity of interests is whether the interest of the applicant, even if assumed to be represented, is represented diligently. Representation is considered to be inadequate if the original party is not diligent in the prosecution or defense of the action or allows a default judgment to be entered. Annot.,
Finally, we reject plaintiff Lima’s argument that a fair result is ensured by her having to meet the burden of proof and by court supervision. Neither position has merit. The burden of proof requirement is effective only when a case is actually and fairly litigated in a truly аdversarial trial. As for court supervision, we need only remark that it is not the role of a judge to be an advocate. Such a concept is fundamentally contrary to the nature of our adversary system. The court in
State v. Craig,
Mo.App.,
We think the argument that relator’s interest will be “adequately represented” in respect to Count I because the court will require proof of plaintiff’s cause is specious. It is not the duty of the trial court to subpoena and interrogate witnesses who might cоntradict the testimony of plaintiffs or those who might testify to compelling facts which show that plaintiff is not “legally entitled to recover” the damages he claims. The court cannot, and should not, act as attorney for the defaulting defendants. Every *284 practicing lawyer knows that, in so far as the issues of fact are concerned, the dеfaulting defendants are not “adequately represented.”
Id. at 346.
We therefore conclude that Prudential’s interest is not adequately represented.
3. Finally, we must decide whether Prudential is or may be bound by a judgment in the tort action. Prudential argues that it is “probably bound” by a judgment against the uninsured tortfeasor. Plaintiff Lima argues that a judgment binds only the defendant Chambers, and not Prudential, whose contractual obligation is merely triggered by the tort judgment.
A major conflict of authority exists on the meaning of the word “bound.” An-not.,
We hold that because section 41-12-21.1 requires insurers to assume financial responsibility for judgments obtained by their insureds against uninsured motorist tortfeasors (within certain limits), and because of the insurer’s contractual obligation which embodies that statutory requirement, the insurer “is or may be bound” by the tort judgment within the meaning of Rule 24. 2
Having concluded that the four requirements for intervention of right have been met, we hold that Prudential should be allowed to intervene in the pending damagеs litigation between its insured and the uninsured tortfeasor. Having resolved the issue at hand on statutory grounds, we need not address Prudential’s constitutional argument concerning denial of due process.
In allowing intervention in this case, we necessarily overrule Kesler v. Tate, supra, and thereby partially fulfill Chief Justice Hall’s foreshadowing comment in Wright v. Brown, supra at 1155, that “the time [could be] nigh to alter the course of the law as set forth in Christensen v. Peterson and Kesler v. Tate.”
III.
We do not hold that in each and every uninsured motorist case intervention must be allowed. In each case it will be necessary for the trial judge to make an assessment of the adequacy of representation. If the defendant has counsel who actively litigates the case, intervention may not be appropriate.
When intervention is permitted, the intervenor must accept the pending ac
*285
tion as he finds it; his right to litigate is only as broad as that of the other parties to the action.
E.g., Beard v. Jackson,
Mo.App.,
The order of the trial court denying intervention is reversed and the case remanded for further proceedings. No costs.
Notes
. Rule 24(a) Intervention of Right. Upon timely application anyone shall be permitted to intervene in an action: ... (2) when the representation of the applicant’s interest by existing parties is or may be inadequate and the applicant is or may be bound by a judgment in the action.
. We need not decide whether Prudential might be bound by the judgment under the doctrines of res judicata or estoppel. That question cannot arise until it is established that there is a right to intervenе. Presumably, a nonparty insurer could not be bound in a res judicata sense unless it had the right and opportunity to intervene and chose not to.
See Wells v. Hartford Accident and Indemnity Co.,
Mo.,
. We recognize that some conflict of interests appears to be inevitable. However, the interest of fairness and judicial economy outweigh, in our view, the potential difficulties arising from a conflict of interest.
See, e.g., Oliver v. Perry,