This action was brought by the appellants, who reside within the Beresford School District, in their capacity as taxpayers. They sought to enjoin the respondents, Beresford School Board (Board) and Robert Kennedy (Kennedy), chairman of the Board, from opening and accepting bids for the construction of an auditorium-gymnasium.
This appeal is a result of the circuit court’s denial of appellants’ request for an interlocutory injunction and its granting of the respondents’ motion for summary judgment.
The Board’s official minutes reveal that on January 10, 1977, the Board passed a motion which directed an architect to draw preliminary plans for an auditorium-gymnasium within the limits of the monies available in the capital outlay fund. 1 At a special meeting on March 11, 1977, the Board passed a motion “directing the architects to proceed to develop the proposed plan recommended by the architect, leaving options for changes.” The architect advised the Board at the March 11 meeting that the specifications and working drawings on the project would be ready so that a June bid letting could be held.
Thereafter, without further motions or resolutions on the plans and specifications, *716 they were apparently submitted to the state superintendent of elementary and secondary education as required by SDCL 13-24-14. Approval from the superintendent was received on June 8, 1977. Although no exhibit is present, the parties acknowledge that an advertisement for bids was published on Kennedy’s authority setting June 30, 1977 as the date for the “bid letting.” 2
Appellants served a summons, complaint and order to show cause upon respondents on June 27, 1977. The complaint alleged four grounds to support its request for an interlocutory and permanent injunction to be issued to prohibit the opening and acceptance of bids for the auditorium-gymnasium.
The grounds alleged were: (1) that the Board had failed to make or pass any resolution or motion adopting or approving the architect’s plans authorizing the construction of the auditorium-gymnasium or authorizing an advertisement for bids on the auditorium-gymnasium; (2) that the transfer of surplus general funds to the capital outlay funds was illegal; (3) that the transfers of surplus general funds to the capital outlay fund in the 1972-1973 and 1973-1974 fiscal years were allowed to accumulate from year to year in violation of SDCL 13-16-7; and (4) that the Board’s decision to construct the auditorium-gymnasium was arbitrary and capricious.
A hearing on the order to show cause was held on June 28, 1977. The trial court denied the interlocutory injunction on the authority of
Thies v. Renner,
1960,
The Board opened the bids which had been submitted on June 30, 1977, and, according to respondents’ brief, accepted the low bid. On July 5, 1977, the trial court granted summary judgment in the action on the grounds that (1) the matter was moot because the bids had been opened and accepted, and (2) that injunctive relief was not available to the appellants. The appellants filed their notice of appeal on July 7, 1977. The construction contract was executed on July 28, and the construction of the auditorium-gymnasium began on August 8, 1977. On August 16, 1977, upon appellants’ motion, this court issued a stay conditioned upon the filing of a $25,000 supersedeas bond. The stay was subsequently vacated upon the failure of the appellants to file the bond required. The respondents have now filed with this court a motion to dismiss the appeal for mootness.
According to general rules of mootness adopted by this court, absence of an actual controversy between the litigating parties is reason for an appellate court to dismiss an appeal for mootness.
Clarke v. Beadle County,
1918,
An appeal from an order denying injunc-tive relief will be dismissed as moot because no effectual relief can be given where, pending the appeal, the acts sought to be enjoined have been performed or completed.
Hansen v. Gregory County,
1934,
The reversal of the trial court’s decision would not be an effectual relief, inasmuch as the action sought to be restrained has long since passed. The controversy is now moot.
“(However), [i]t is a well-established rule that an appellate court may retain an appeal for hearing and determination if it involves questions of public interest even though it has become moot so far as the particular action or the parties are concerned * * *. The decision as to whether to retain a moot case in order to pass on a question of public interest lies in the discretion of the court and generally a court will determine a moot question of public importance if it feels that the value of its determination as a precedent is sufficient to overcome the rule against considering moot questions.” 5 Am. Jur.2d, Appeal and Error, § 768.
See also Annot.,
In the invocation of the public interest exception, the courts require the existence of three criteria: (1) general public importance, (2) probable future recurrence, and (3) probable future mootness.
United States v. Trans-Missouri Freight Association,
1897,
One of the issues raised by the appellants satisfies these requirements and is one which this court feels requires an authoritative determination for the guidance of the public, school boards and their members, and the judiciary. The issue is whether a taxpayer can secure injunctive relief to prevent the school board and its members from illegally entering into a construction contract.
The trial court determined that a taxpayer’s only relief from an action by a school board is by an appeal under SDCL 13-46-1. However, as was pointed out in
Blumer v. Sch. Bd. of Beresford Ind. S. D.,
1977, S.D.,
A prerequisite to injunctive relief is, of course, the lack of an adequate and complete remedy at law. 42 Am.Jur.2d, Injunctions, § 39, et seq. Until the repeal of SDCL 13-16-25 by Ch. 128, § 377, S.L. 1975, a taxpayer would have had a statutory right to bring a suit against the individual board members for any school district funds which had been unlawfully expended. In the absence of a statute allowing such an action, a taxpayer may not be entitled to recover public funds paid under an illegal contract from either the public officials or the contractor in the absence of fraud or collusion. 65 Am.Jur.2d, Public Works and Contracts, § 235; 56 Am.Jur.2d, Municipal Corporations, Etc., § 288; 63 Am.Jur.2d, Public Officers and Employees, § 294.
The repeal of SDCL 13-16-25 and the restricted right of appeal under SDCL 13-46-1 would, under the trial court’s ruling, prevent the ordinary taxpayer from *718 ever challenging an expenditure of school district funds as being illegal. Where the remedy at law is inadequate, the granting of injunctive relief to a taxpayer has been long recognized to prevent the illegal expenditure of public funds, 42 Am.Jur.2d, Injunctions, § 176; 43 C.J.S. Injunctions § 112; 74 Am.Jur.2d, Taxpayers’ Actions, § 41, 4 or to prevent the award or execution of an illegal contract. 65 Am.Jur.2d, Public Works and Contracts, § 237.
“Taxpayers have the right to restrain public servants from transcending their lawful powers, or violating their legal duties in any unauthorized mode, which will increase the burden of taxation or otherwise injuriously affect the taxpayers or their property.” 43 C.J.S. Injunctions § 108 c. at 619.
Of course, injunctions will not lie to prevent the exercise of a public office in a lawful manner. SDCL 21-8-2. Likewise, injunctive relief is not available to review discretionary acts of a school board unless it is shown to have been exercised in an illegal, unauthorized, or unlawful manner. 79 C.J.S. Schools and School Districts § 420; 43 C.J.S. Injunctions §§ 108, 112.
The second ground asserted by the appellants, i. e., the transfer of excess general funds to the capital outlay funds, was held by this court in the case of
Blumer v. School Bd. of Beresford, Etc.,
1975, S.D.,
The fourth ground asserted by the appellants, i. e., that the Board abused its discretion in deciding to building the auditorium-gymnasium, is a matter of discretion in the Board’s legal power and is, likewise, not a proper basis for injunctive relief. Thies v. Renner, supra.
However, the first and third grounds asserted by the appellants appear to have been of a different nature. The first ground, i. e., that the Board had not passed an appropriate resolution adopting the plans and specifications and authorizing the advertisement for bids, does appear to at least raise the issue of legality of the Board’s or its chairman’s action which would have justified temporary injunctive relief until the issue was resolved by the trial court. We express no opinion regarding the propriety of the action taken by the Board without a specific motion or resolution because the issue does not appear to be the topic of specific statutory provisions or judicial decision and was not an issue of this appeal. Cf.,
Anderson v. Grant County Board of Education,
1973,
The third ground, i. e., the carry over of capital outlay funds, is also an unsettled issue. Although in the first
Blumer
decision (
*719 Because the action which the appellants sought to restrain, i. e., the opening and acceptance of the bids, has long since passed and the injunctive relief sought could not be given, we do not remand this case for further proceedings and we dismiss the appeal; however, had the matter not become moot, we would have reversed the order of the trial court. Therefore, we award the appellants their statutory appeal costs. 5
Notes
. The discussion preceding the motion indicated that the fund amounted to $500,000 to $550,000.
. When or where the advertisement first appeared does not appear in the settled record, and no allegation has been made of a violation of the thirty-day requirement of SDCL 5-18-3 on new construction.
. In
Stene
v.
School Bd. of Beresford Ind. Sch. Dist., No. 68,
. The use of writ of mandamus and prohibition in similar circumstances is discussed in 74 Am.Jur.2d, Taxpayers’ Actions, §§ 43, 45.
. The appellants have requested oral argument, respondents have not. Pursuant to SDCL 15-26-23.1, upon unanimous consent of the justices oral argument has been dispensed with.
