delivered the opinion of the Court.
This is an appeal from a decree of the District Court, composed of three judges, granting an interlocutory injunction which restrained the enforcement of an order of the Public Service Commission of Wisconsin reducing telephone rates.- 28 U.S.C., § 380.
In July, 1931, the Public Service Commission of Wisconsin instituted a statéwide-investigation of the rates, rules, services and practices of the Wisconsin Telephone Company. While hearings in this investigation were in progress, and on June 30, 1932, the Commission issued an “ interlocutory ” order reducing the rates .for “ ex-changé ” service, that is, rates for local service within a single exchange, by 12% percent. The Commission found that the existing rates were unjust and unreasonable and that the reduced rates would be ..just and reasonable to be applied for a temporary period. The rates were to be effective for one year from July 31, 1932, the Commission retaining jurisdiction to modify its order at any time for cause shown. The Commission rendered an elaborate opinion (154 printed pages) setting forth the “ reasons and facts ” underlying its findings.
No opinion was rendered by the District Court and, apart from the general statement above mentioned, the court made no findings. Not only did the. court fail to set forth the facts pertinent to a conclusion that an interlocutory injunction should issue, ,but' the court declared that the prescribed rates were confiscatory without any findings warranting such a conclusion. Appellee moves to affirm the decree. Appellants, resisting the. motion, contend that the District Court abused its discretion and that the decree should be reversed, or at least should be set aside and the cause remanded for findings of fact and conclusions of law.
We. have repeatedly emphasized the importance of a statement of the grounds of decision, both as to facts and law, as an aid to litigants and to this Court. While it is always desirable that an appellate court should be adequately advised of the' basis of the determination of the
It is true, as the appellee contends, that the terms of Equity Rule 70%, relating to decisions of suits in equity, apply to decisions upon final hearing and do not embrace decisions upon interlocutory applications. But the duty of the court in dealing with interlocutory applications, to which this Court had previously directed attention, was not altered by the adoption of that rule. While an application for an interlocutory injunction does not involve a final determination of the merits, it does 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 per
That' duty the court below failed to perform in the instant case and we are not called upon, unaided by opinion or findings, to search this voluminous record to find a basis for the court’s decree. The decree is accordingly vacated and the cause is remanded to the District Court, as specially constituted, for findings, and conclusions appropriate to a decision upon the application for an interlocutory injunction, the temporary restraining order to remain in force pending that determination.
Decree vacated and cause remanded.