This is an original proceeding in mandamus filed in this court. The matter was instituted by the filing of a petition in prohibition, but we granted leave to amend. Thereafter our alternative writ in mandamus was issued. From the petition, the return, the reply, and the exhibits thereto, the facts and occurrences appear as we shall now relate them.
On June 19, 1963, relator filed suit in Jackson County against Merchants-Produce Bank of Kansas City, Missouri, alleging that on October 4, 1961, plaintiff was the owner of a check payable to it in the amount of $205,709, drawn by Associates Discount Corporation on the First Bank and Trust Company of South Bend, South Bend, Indiana, and certified by that Bank; that the said check was presented to defendant by one Charles I. Hayes, purporting to act as plaintiff’s President, and that defendant wrongfully paid the proceeds to a corporation owned or controlled by Hayes *674 upon his unauthorized endorsement; that plaintiff was thus deprived of the proceeds, that it was and is the owner of the check, and that the check was thus converted by the defendant. Plaintiff prayed judgment for the full amount of the check, with interest.
Defendant filed answer, denying all the substantive allegations of the petition. More than two years later and on November 29, 1965, defendant filed its “Motion to Dismiss or Require Joinder of Additional Party Plaintiff” wherein it alleged (after reciting certain allegations of the petition): that on November 1, 1962, plaintiff and Associates Discount Corporation entered into a “joint adventure agreement” wherein they agreed to share equally any sum recovered from the defendant by judgment or settlement in any suit on the check in question and agreed to share equally the total cost and expense of any action so filed; that “as the result of said agreement plaintiff and Associates Discount Corporation had a joint interest” in the action, and that there was accordingly a nonjoinder requiring joinder or dismissal; further, that a complete determination of the controversy could not be had without the presence of Associates. An order was prayed accordingly.
The agreement so referred to stated in essence that Knight Oil Company (plaintiff below and relator here) was “alleged” to be indebted to Associates in the sum of $164,-275.10, on promissory notes secured by accounts receivable; that in compromise and settlement it was agreed: that plaintiff would pay Associates $72,000, at stated times within sixty days; that Associates would cancel all such notes and withdraw its assignment; that plaintiff would, if necessary, prosecute a suit against Merchants-Produce Bank to recover the amount of the check already described; that plaintiff and Associates would share equally in the proceeds of any recovery by judgment or settlement, and that the cost and expenses should be borne equally; that the attorneys would be selected by plaintiff on contingent fees of not to exceed 33½%, the precise percentage to be determined by the difficulties encountered and the necessity of local counsel.
The trial court, after the submission of written suggestions pro and con, entered its order on January 6, 1966, sustaining the motion to require the joinder of the additional party and allowing plaintiff fifteen days in which to file an amended petition joining Associates as a plaintiff or a defendant; the motion to dismiss was overruled conditionally. In the present proceeding relator seeks our writ requiring respondent to vacate that order, insisting that it has the right to prosecute its action alone, that the cause of action was not assigned, that there is no “joint interest,” and that the presence of Associates is not necessary to a complete determination of the controversy. The return of respondent to our alternative writ admits the authenticity of the exhibits, but denies that relator has fully stated the allegations and provisions of its original petition and of the agreement; it denies relator’s right to prosecute its action alone, alleges that respondent had jurisdiction of the subject matter and of the person of Associates, that relator and Associates were parties to a “joint adventure agreement” with a common interest, a mutual right of control, and an agreement to share the recovery and the expenses, thus resulting in a nonjoinder. The return further alleges that Associates issued the check in question knowing that Hayes intended to use the proceeds to purchase the controlling stock of relator, that Associates made the transaction possible, and that it would be unconscionable to let Associates “recover more than $100,000 from defendant * * * ” without having it made a party to the action; also, that relator would not be prejudiced by the joinder, and that a complete determination of the controversy could not be had without such joinder.
The reply denies that the agreement had the legal effect claimed by respondent and denies the new matter affirmatively alleged in the return, except that relator admits that Associates issued the check knowing *675 that Hayes intended to use the proceeds “to purchase the capital stock of Relator.”
Although matters which we consider extraneous and irrelevant have thus been introduced into the pleadings, there are sufficient facts shown without controversy to permit a determination of the validity of respondent’s order on the motion, which is the only question involved here. We shall disregard those matters, both in pleadings and briefs, which we deem irrelevant to the basic issues. There is no doubt that respondent had jurisdiction of the subject matter generally, and of the persons of the original parties; also, that it could obtain personal jurisdiction of Associates, if the situation justified it. But extraordinary writs are issued when necessary to prevent an excess of jurisdiction, as well as to prevent or stop action where no jurisdiction exists. State ex rel. Siegel v. Strother,
Rule 52.04 provides (a), V.A.M.R. that persons having a joint interest shall be made parties, and (b) that, when a complete determination of the controversy cannot be had without the presence of other parties, the court may order them brought in. This Rule replaced § 507.030, RSMo 1949, V.A. M.S., which was identical. The trial court did not indicate whether it acted under part (a) or part (b) of the Rule; we must consider both.
It appears from the reply brief that the Bank, on October 3, 1966, filed in the original suit, after the issues were made up in our proceedings, its third-party petition against Associates and also its amended answer and counterclaim, in all of which sundry issues were raised. We shall take no further note of those proceedings, for they do not constitute any part of our record or issues here.
Counsel for respondent say that relator “makes no claim that respondent over-stepped his discretion in ordering the joinder of Associates.” Relator does claim that the order of joinder was unlawful, as not made within the provisions of our rule, and thus, broadly construed, it would seem to claim that respondent exceeded the limits of such discretion as existed. However, the point is immaterial for, having issued our alternative writ and assumed jurisdiction, we would proceed on our own moton, if necessary, to determine whether respondent exceeded his jurisdiction, including the exercise of any abuse of discretion. The trial court does have a discretion in the first instance to determine, under the rule, whether the party sought to be joined is a necessary party; if it has a joint interest, it must be joined; if its presence is necessary to a complete determination of the controversy, it may be brought in under subdivision (b). The first essential under (b) is a determination that it is a necessary party. If, as a matter of law, it is not, then the court abused its discretion when it ordered the joinder.
We consider, first, whether Associates had a "joint interest" in the cause of action sued upon. Respondent bases his contention solely upon the agreement between plaintiff and Associates, made more than a year after the Bank paid the check. We first note the precise nature of plaintiff’s suit. It was one for a conversion of the check by the defendant Bank, which had paid it to Hayes allegedly upon an unauthorized *676 signature, plaintiff alleging further that it was at all times the owner of the check and entitled to the proceeds. Defendant answered merely by admissions and denials; the issues, therefore, were relatively simple. 1 The Bank’s motion for joinder, aside from formal recitations of the pleadings and the substance of our rule, stated as the sole ground for requiring a joinder, that plaintiff and Associates had entered into a joint venture by virtue of their agreement. That is now the first insistence of respondent in his brief.
A “joint adventure” has been defined many times in our cases. Thus, in Shafer v. Southwestern Bell Telephone Co., Mo.,
It is not contended that relator did not have the right or capacity to sue the Bank. Section 507.010, RSMo 1959, V.A.M.S. It was and is certainly a real party in interest, and it was at least a trustee of an express trust for Associates, in so far as the latter had an interest in the proceeds of the suit. Relator insists that the agreement did not assign any part of the cause of action to Associates, but merely gave it a contingent interest in the net proceeds. In Keeley v. Indemnity Co. of America,
We next consider whether the presence of Associates was essential to a “complete determination of the controversy.” We note, first, that “the controversy” means the suit between the relator and the Bank, not some other controversy between one of the parties and an outsider. While the intervention cases are not specifically in point, their definitions of an “interest” which compels intervention are persuasive. In State ex rel. State Farm Mutual Auto Ins. Co. v. Craig, Mo.App.,
Respondent seems to argue that Associates would have an independent cause of action on the check, and that it should be joined to foreclose such an action. It relied on no such ground in the motion for joinder, and the ruling on that motion is what we are reviewing here. It is doubtful, to say the least, whether Associates would have any such cause of action; it is not shown to have suffered any loss. Counsel cite no Missouri cases and the only one we have found, First National Bank
*678
of Kansas City v. Produce Exchange Bank,
Despite respondent’s protestations to the contrary, it would seem that the only legitimate purpose in seeking to join Associates would be to procure indemnity or contribution from it in case of liability, by cross-claim or otherwise. That purpose, where proper, may ordinarily be accomplished through our third-party procedure or by an independent suit; however, we are not required or permitted to rule on the availability of other remedies in the present circumstances. It is obvious that the joinder of Associates as a party in the present litigation would greatly broaden and confuse the original issues. We conclude that the presence of Associates was not necessary for a complete determination of the issues in the suit between relator and the Bank. For a recent discussion and definition of the term “necessary party,” see Shepherd v. Dept. of Revenue, Mo.App.,
We are further convinced that on the issues raised by the Bank’s motion for joinder the question was one of law, and that when the court ordered the joinder, it exceeded its lawful jurisdiction; to put the statement in another way, the question being one of law, the trial court had no discretion to do otherwise than to deny the motion, although, of course, it had jurisdiction to rule. Associates simply was not a necessary party to the ordinary, uncomplicated conversion suit by the owner of the check. Our alternative writ of mandamus will be made peremptory, directing respondent to vacate its order requiring the joinder of Associates Discount Corporation in relator’s action against Merchants-Produce Bank of Kansas City, and also to overrule, without condition, the motion of said Bank to dismiss the cause for alleged nonjoinder. It is so ordered.
Notes
. For an excellent discussion of the nature of such suits, generally, see Chemical Workers Basic Union, Local No. 1744 v. Arnold Savings Bank, Mo.,
