May 17, 1952 respondent Company, by formal petition, applied to the Public Utilities Commission for approval of increased rates, and for appropriate, pertinent hear*81ings, which commenced September 3, 1952 and continued seriatim until March 24, 1953, whereupon the Commission, by its order of May 13, 1953, denied the increase.
May 15, 1953 respondent Company filed a complaint in the District Court asking for a mandatory injunction permitting respondent to charge such rates, increased to give an additional annual income of $1,097,000 and that appellants be restrained from interfering with such collection. The complaint was accompanied by notice, directed to appellant Commission and the Attorney General and his assistants as attorneys for the Commission, that May 25 at ten o’clock a. m. such temporary injunction would be sought.
At that time respondent, with court permission, amended its complaint alleging it had asked the Commission May 25 for a rehearing in the initial case.
A general demurrer to the complaint was overruled, and appellants forthwith filed an answer traversing the substance of the complaint with affirmative, negating and countering substantive allegations, asserting no increase of rates was justified, needed, or should be allowed.
The transcript of the proceedings, and exhibits, before the Commission were, over appellants’ objection, admitted in evidence. The court instanter made its order and decree, finding with specific reference to the record the rates in effect prior to the application for their increase, if continued, would result in confiscation to respondent and that the rates should be increased as substantially requested by respondent to prevent confiscation and authorized the collection of the increased rates, same to be impounded with the Clerk of the Court under the protection of a $100,000 bond insuring prompt payment by respondent Company of all damages; and refund to entitled users if the increased rates be not ultimately authorized; prohibited appellants from interfering with such collections, but expressly did not interfere with continued hearings and determination by the Commission of ultimate rates.
The complaint, though no model and sketchy, was not vulnerable to the general demurrer, which was, therefore, properly overruled. Rowland v. Kellogg Power & Water Co., 40 Idaho 216, at page 223, 233 P. 869; Staten Island Edison Corp. v. Maltbie, 296 N.Y. 374, 73 N.E.2d 705, at page 706, 8 A.L.R.2d 825; Lowell Gas Co. v. Department of Public Utilities, 324 Mass. 80, 84 N.E.2d 811; Prendergast v. New York Telephone Co., 262 U.S. 43, 43 S.Ct. 466, 469, 67 L.Ed. 853.
Appellants urge respondent has not exhausted administrative remedies prerequisite to its application for this injunction, in that it did not ask the Commission to suspend the rates approved by it. Sections 61— 624 to 61-626 Idaho Code. If the Commission would have suspended its rates, the court herein has done no more. If it would *82not have, it would have been vain and useless to so ask and there is nothing to sug^ gest the Commission would have suspended its rates. -
“Manifestly under such circumstances the injunction should not have been denied merely because application had not been made to the Commission * * (for suspension).” Prendergast v. New York Telephone Co., supra.
Herein, rehearing was asked, granted, and is now pending.
That confiscation was not raised before the Commission is no bar to raising it herein in this equitable proceeding. Baltimore & Ohio R. Co. v. United States, 298 U.S. 349, 56 S.Ct. 797, 80 L.Ed. 1209.
“Assuming that there is a zone of reasonableness within which the Commission is free to fix a rate varying in amount and higher than a confiscatory rate, (cases) the Commission is also free under § 5(a) [15 U.S.C.A. § 717d (a)] to decrease any rate which is not the ‘lowest reasonable rate’ ”. Federal Power Comm. v. Natural Gas Pipeline Co., 315 U.S. 575, 62 S.Ct. 736, 743, 86 L.Ed. 1037.
Joy v. Winstead, 70 Idaho 232, 215 P.2d 291, merely held the District Court had jurisdiction, either in equity or under the Statute, or both, to issue a mandatory injunction pendente lite to prevent confiscation and irreparable damage, until the question of increased rates has been finally determined. That case recognizedffhat inters ini, inability to collect a non-confiscatory rate would result in irreparable damage, because of the impossibility of recoupment. Such are the general concepts. State ex rel. Public Service Comm. v. Marion Circuit Court, 230 Ind. 277, 100 N.E.2d 888, 103 N.E.2d 214. We did not, in any way, outline the procedure or what was necessary to be shown to justify such an injunction. County Transp. Co. v. Maltbie, 189 Misc. 743, 73 N.Y.S.2d 906, at page 908.
Appellants in their praecipe expressly did not ask for the Summons, Sheriff’s return, affidavits of service and minutes of the court. A copy of the Notice that May 25, 1953 at ten o’clock a. m., respondent would apply for a temporary injunction sought herein, accompanies the complaint and the Order and Decree of the Court recites:
“ * * *; that service of Summons and a copy of the Complaint has been had upon each and all of the Defendants named herein; that a copy of a Notice stating that in accordance with the statutes in such case made and provided, Plaintiff would, on May 25, 1953, at ten o’clock A.M., apply to this court for a temporary injunction staying and suspending Commission Order No. 2255, as in said Notice specified, together with a copy of the Summons and Complaint in this action, was duly served on all of the Defendants named *83herein and on all other persons making a personal appearance in the proceedings before the Commission in opposition to Plaintiff’s application for in- ' creases in rates, such service of said ■Notice having been completed at least three days before the time set for this ; hearing for a temporary injunction. The matter is properly before the court at this time for the limited purpose of determining whether Plaintiff is entitled to a temporary injunction pen- ' dente lite, subject to such conditions as the court may impose.”
Therefore, contrary to appellants’ assignments of error, Sections 8-408 and 61-633, Idaho Code, were complied with.
While the State did not proffer any evidence at the hearing, the summary disposition as shown by the record herein, in effect, indicated no additional evidence would be received or considered. This was unduly and prejudicially restrictive. Alabama Public Service Comm. v. Southern Bell Tel. & Tel. Co., 253 Ala. 1, 42 So. 2d 655, at page 667.
Section 61-633, I.C., expressly requires the proceedings before the Commission to be introduced in evidence; therefore, they were properly admitted. Authorities, which we deem pertinent, indicate that in addition to the Commission record, evidence bearing on the question of confiscation may be introduced by any interested party. Lowell Gas Co. v. Department of Public Utilities, 324 Mass. 80, 84 N.E.2d 811, at page 817, supra; Prendergast v. New York Telephone Co., 262 U.S. 43, 43 S.Ct. 466, 67 L.Ed. 853, supra; Public Service Commission v. Indianapolis Rys., 225 Ind. 30, 72 N.E.2d 434, at page 439; Corporation Commission v. Southern Pac. Co., 55 Ariz. 173, 99 P.2d 702; Baltimore & Ohio R. Co. v. United States, 298 U.S. 349, 56 S.Ct. 797, 80 L.Ed. 1209.
This is not a rate hearing, but an extraordinary, emergency proceeding in equity pendente lite for the sole and only purpose of considering temporary relief against probable confiscation. Joy v. Winstead, supra.
Appellants largely control curtailing such interim period by expediting and concluding the rehearing in Public Utilities case, Docket No. U-1000-2.
The issuance of such an injunction is addressed to the sound, considered judicial discretion of the trial court after a full hearing on the single issue of probable confiscation. Shields v. Johnson, 10 Idaho 454, 79 P. 394; Rowland v. Kellogg Power & Water Co., 40 Idaho 216, at page.223, 233 P. 869, supra.
What must be shown to justify the issuance of an interim, temporary injunction of this nature has been stated accurately in the following cases:
“While an application for an interlocutory injunction does not involve a final determination of the merits, it *84does involve the exercise of a sound judicial discretion. That discretion can be exercised only upon a determination, in the light of the issues and of the facts presented, whether the complainant has made, or has failed to make, such a showing of the gravity of his complaint as to warrant interlocutory relief. Thus, if the issue is confiscation, the complainant must make a factual showing of the probable confiscatory effect of the statute or order with such clarity and persuasiveness as to demonstrate the propriety in the interest of justice, and in order to prevent irreparable injury, of restraining the state’s action until hearing upon the merits can be had. (Cases.) The result of the court’s inquiry into the issues and into the facts presented upon the interlocutory application, in order to satisfy itself as to the gravity of complainant’s case and the probable consequences of unrestrained enforcement of the statute or order, should be set forth by the court in a statement of the facts and law constituting the grounds of its decision. While that decision is not on the merits and does not require the findings of fact and conclusions of law which would be appropriate upon final hearing, the court should make the findings of fact and conclusions of law that are appropriate to the interlocutory proceeding.” Public Service Comm. v. Wisconsin Telephone Co., 289 U.S. 67, 53 S.Ct. 514, 515, 77 L.Ed. 1036.
“ ‘This is not a final hearing, but only upon petition of plaintiff for an interlocutory injunction, and therefore proof need not be as complete as upon a final hearing. All that is necessary is that plaintiff show that it is prima facie entitled to an injunction; that the injury to plaintiff will be certain and irreparable if the application for an interlocutory injunction be denied, and, if the injunction be granted, that the injury to the opposing party, even if the final decree be in its favor, may be adequately indemnified by bond.’ * *
“‘Upon an application for an interlocutory order granting an injunction, it is not necessary that such a case should be made out as would entitle the plaintiff to relief at the final hearing. It is sufficient if the court finds upon the pleadings and evidence such a state of facts as makes the transaction a proper subject for investigation in a court of equity.’ ” Public Service Commission v. Indianapolis Rys., 225 Ind. 30, 72 N.E.2d 434, at page 439, supra;
Trautwein v. Moreno Mut. Irr. Co., 9 Cir., 22 F.2d 374; State v. Tri-State Telephone & Telegraph Co., 204 Minn. 516, 284 N.W. 294; Lone Star Gas Co. v. State, 137 Tex. 279, 153 S.W.2d 681; White v. Coeur D’Alene Big Creek Mining Co., 56 Idaho 282, at page 288, 55 P.2d 720.
*85Any additional evidence should not be mere repetition or unnecessary and extended duplication of evidence already in the record or go beyond the limited issues involved. Hearings of this kind should not he an endurance Marathon, each side endeavoring to wear out the other, resulting in useless and unnecessary expense to the patrons of the Telephone Company and the general tax-paying public.
The action, therefore, is reversed and the cause remanded with instructions to the learned trial court to admit evidence presented by any party to the proceedings, in ■addition to the evidence contained in the record of proceedings and exhibits before the Commission, and to bring down to date, so far as is reasonably possible, the showing pro and con as to confiscation.
The mandatory injunction, though improvidently issued, will, to prevent possible interim irreparable damage, be continued permitting the collection of the increased rates under the bond heretofore issued until a determination of the propriety of the injunction upon a full and proper hearing by the trial court in compliance herewith, and his consequent ruling. Alabama Public Service Comm. v. Southern Bell Tel. & Tel. Co., 253 Ala. 1, 42 So.2d 655, at page 691, supra.
Costs to appellants.
PORTER, C. J., and TAYLOR, J., concur.