This appeal turns on whether the statute of this state (sec. 1077a, Stats. 1898) is unconstitutional, providing for the appointment of commissioners by the circuit judge of any county, on petition as therein indicated, presented to such judge within one year after, the county assessment of property in any year, for the apportionment of *85county and state taxes pursuant to sec. 1073, to review such assessment and correct it if justice shall so require, their determination to be final, and the inequalities, if any, in the taxes apportioned on the unjust assessment to be corrected in the next year’s apportionment of state and county taxes as therein provided. Appellant insists that such statute violates sec. 2, art. YII, of the constitution, vesting “ the judicial power of this state, both as to matters of law and equity,” “ in a supreme court, circuit courts, courts of probate, and in justices of the peace,” and such municipal courts as the legislature may see fit to establish.
It is considered that counsel’s contention cannot be sustained unless we overrule State ex rel. Brown Co. v. Myers, 52 Wis. 628. True, as claimed by counsel, the law wa§ not there challenged as unconstitutional on the precise ground now presented for consideration, but the principle upon which the decision turned covers the point now made as clearly as the one that invoked the judicial declaration thereof. The decision is to the effect that the legislature has plenary power over the whole subject of taxation within constitutional limitations; that it may select the objects of taxation, determine the amount of taxes that shall be levied and the particular purpose or purposes the same shall be devoted to, the manner in which property shall be valued for taxation; that it may establish the necessary taxing districts and provide for the selection of all the public. agencies fqr the collection, return, and expenditure of the public, 'revenues. The law, said the court, “ does not seem open to any constitutional objection; for this whole matter is within the control of the legislature, which, doubtless, might abolish the present system and create a state board for th£ assessment and equalization of the value of the taxable property of the state. At all events, such a law would be within the constitutional power of the legislature.” No reason is perceived why the principle thus broadly stated should be re*86stricted in any degree. From time immemorial tbe taxing-power has been regarded as an incident of sovereignty, and that branch of the government upon which is conferred the power to make law has been supposed to possess, by implication, authority to tax persons and property for public purposes, and to do all things necessary to fully exercise such power. Said Mr. justice Field, in Meriwether v. Garrett, 102 U. S. 472, 518: “ The power to levy taxes is one which belongs exclusively to the legislative department, and from that it necessarily follows that the regulation and control of all the agencies by which taxes are collected must belong to it.” This court said in Knowlton v. Rock Co. 9 Wis. 410, 418:
“ Taxation is the act of laying a tax or imposing these burdens or charges upon persons or property within the state. It is the process or means by which the taxing power is exercised. The power of taxation is one of the essential attributes of sovereignty, and is inherent in and necessary to the very existence of every government. In republics it is vested in the legislature, and in the absence of any constitutional restrictions, may be exercised by them, both as to objects and modes, to any extent which they may deem proper.”
Any method of raising the public revenues, by the exercise of the taxing power in the taxation of property, necessarily includes the creation of taxing districts, the valuation of property in such districts, the equalization of values as between the districts, and the apportionment of the whole amount of the public burden between such districts upon the basjs of such equalization. The law in question, as said in State ex rel. Brown Co. v. Myers, 52 Wis. 628, is in furtherance of justice and fairness in doing one of the things essential to the proper exercise of the taxing power, — the equalization of values.
The idea of counsel for appellant seems to be that, because the commissioners in the performance of their duties mufst necessarily act judicially, they must be considered, to all in*87tents and purposes, a court, hence an unconstitutional body because not one contemplated by sec. 2, art. VII, of the constitution. That is manifestly wróng. The constitution by no means provides that all authority to act judicially is or shall be vested in some one of the courts therein indicated. The language of the constitution is: “ The judicial power of this state, both as to matters of law and equity, shall be vested in ” the courts mentioned. The term “ matters of law and equity ” refers to the administration of the law in actions and proceedings in courts of law and equity,— the exercise of such power in such matters as was exercised by such courts at the time of the adoption of the constitution. As said in Callanan v. Judd, 23 Wis. 343, 349, the proper construction of the term “ judicial power in matters of law and equity ” is such power as the court, under the. English and the American systems of jurisprudence, had always exercised in actions at law and in equity. To act judicially, and to act judicially in a matter at law or in equity,— or, in other words, in actions at law or suits .in equity,— are not necessarily the same. Every officer or board that is required, in the administration of the law, to determine whether a duty exists, or- determine from facts, by the exercise of judgment, a course of action, within legislative restraints or guides, must necessarily act judicially in a sense. The power often partakes so much of the judicial function that it is spoken of as quasi-judicial. Manifestly, an officer or board, or other tribunal other than a court, may act judicially in the sense above mentioned and not to do anything falling within the meaning of the term “judicial power as to matters of law and equity; ” and so a judicial officer may perform acts officially outside of such matters,—mere ministerial acts. 17 Am. & Eng. Ency. of Law (2d ed.), 888, notes; Gleason v. Peerless Mfg. Co. 1 App. Div. 259; People v. Bush, 40 Cal. 346.
We have many examples of what has been said in our *88governmental systems; Town boards are authorized by statute, upon notice and bearing, to decide upon propositions to alter the boundaries of school districts (sec. 418, Stats. 1898); and the state superintendent of schools is empowered to review and determine, finally, appeals from such decisions. Sec. 497. Manifestly, as has been held, in the original hearing before the board, and in the hearing on appeal before the superintendent, the exercise of judicial power, in its broad sense, is required. The courts have classed the performance of such duties as quasi-judicial. State ex rel. Moreland v. Whitford, 54 Wis. 150. The court there said:
“If the state superintendent in this has judicial power conferred upon him in violation of the constitution, so has the town board; and yet no one has thought of questioning the constitutional power of such a body in such a proceeding.”
The members of town boards sit as boards of equalization of the work of the assessors, and, in the performance of their duties as such, act judicially; and, while so acting within their jurisdiction, are protected from personal liability for their acts the same as judicial ofiicers. In Steele v. Dunham, 26 Wis. 393, it was held that the commissioners appointed to review the determination of town boards in laying out highways act judicially. Bellinger v. Gray, 51 N. Y. 610, and New York v. Davenport, 92 N. Y. 604, are to the same effect. A justice of the peace, in the performance of his duties, in appointing such commissioners, acts ministerially. Many more illustrations might be given. It seems clear that the enactment of the law in question was a legitimate exercise of the taxing power by the legislature; that while the mode of equalizing a county assessment provided for requires the exercise of judicial power by a tribunal other than a court, in the sense that the members of the commission must act judicially, the action contemplated is not a matter to be determined in an action at law or suit in equity, or other matter in law or equity, required by the constitution to be left to a constitutional court.
*89Some questions are presented that cannot be considered on this appeal because they are outside the record, made by the petition for the writ of certiorari, the writ, and the return thereto. The circuit court could not properly have considered affidavits presented to impeach or support the return; neither can this court. A common-law writ of certiorari calls for the record of the proceeding challenged for want of jurisdiction. If the return does not state the whole record in any such case, the proper course is to obtain an amended return, not to impeach it by affidavits or other proof. When the return is complete in any such case, it imports absolute verity. The matters stated therein, which are responsive to the writ, are deemed to be truthfully stated, and the charges not responded to are taken as true. The court, on the hearing, should then proceed upon the assumption that the entire record of the proceeding challenged is before it, rejecting all affidavits and papers or other proof introduced to impeach or support such record. Baizer v. Lasch, 28 Wis. 268; Cassidy v. Millerick, 52 Wis. 379; Smith v. Bahr, 62 Wis. 244; State ex rel. Gray v. Common Council, 104 Wis. 622; 4 Ency. of Pl. & Pr. 224.
By the Court.— The order appealed from is affirmed.