— Relator holds a certificate issued by the State Board of Health in 1883, which declares that he is legally authorized to practice medicine and surgery in this State. Charges of improper conduct have been preferred against him by a number of citizens of his county and the State Board of Health has cited him to appear before it to answer the charges *555and show canse why his license or authority to practice medicine and surgery should not be revoked.
After service of the citation on relator'he wrote a letter to the secretary of the board wherein he gave the names and places of residence of a number of witnesses whom he desired to have summoned to testify in his behalf and requested the secretary to issue subpoenas for them. According to the citation the board was to sit in Kansas City at the Midland Hotel, December 20,1905. The witnesses for whom the relator desired to have subpoenas issued resided in Bollinger county. The secretary of the board replied to the letter saying that he had no authority to issue subpoenas and no fund out of which to pay witnesses for their attendance; that so far as the action of the board was concerned the only witnesses that would come before it would come voluntarily, and therefore relator would himself have to attend to the matter of procuring the attendance of his own witnesses. Relator says that after the receipt of the secretary’s reply to his letter he tendered to the desired witnesses their legal fees for one day’s attendance and their legal mileage, but that they declined to go without subpoenas; that he has a good defense against the charges, but cannot present it because he cannot procure the attendance of his witnesses. The prayer of his petition is that a writ may issue directed to the respondents, composing the State Board of Health, prohibiting them from proceeding in the matter.
The return filed by respondents admits substantially the facts stated, and says that in 1883 relator ap-' peared before the board and applied for a license to practice medicine and the same was issued to him; that the respondents composing the board have authity under the law to investigate those charges, to ascertain if they be true or false, and if found to be true to revoke the license, or if to be false to acquit him, and. this they purpose to do.
*556In Ms reply to the return the relator says, true it is he did obtain from the State Board of Health the license or certificate in question, but that it was not issued to him on his showing of a diploma or on an examination of him by the board, but on the fact that for a period of five years or more before the act of the General Assembly entitled, “An Act to regulate the practice of Medicine and Surgery in the State of Missouri,” approved April 2,1883, had gone into effect, he had been and then was a practicing physician in this State, and was by the terms of the act excepted from its requirements. The above-stated facts are undisputed.
The charges against relator filed before the State Board of Health by citizens of Marble Hill where he resides, were to the effect that he was then and for several years had been in the continuous and almost exclusive occupation of selling intoxicating liquors without a license and without a prescription in a drugstore kept by him; that he sells liquors to be drunk on the premises; he sells every day in the week, Sunday included, and that he sells to minors, that he conducts the business in open defiance of the law, and that it constitutes a public offense.
It appears from a stipulation filed herein that relator had been practicing medicine in this State since 1867, and duly registered as such under the act of 1874, which required such registration. His affidavit on file says that he applied to the State Board of Health in 1883 for the license or certificate which was issued to him, because he had been advised (he does not say by whom) that it was necessary, to have such a certificate, not knowing then, as he has since learned and now asserts, that he was entitled to practice without such certificate.
Under the act of 1874 no one was to be allowed to practice medicine or surgery in this State unless he had been graduated from a medical college or university with the degree of doctor of medicine, and he was re*557quired to register his diploma in the county of his residence. But that act excepted from its requirements men who were already engaged in the practice. [Laws 1874, p. 111.]
Under the act of April 2, 1883, it was required of one who shall practice medicine or surgery that he should he a graduate in medicine and exhibit his diploma for examination and verification to the State Board of Health or if he should not be a graduate he should stand an examination before the State Board of Health touching his learning, qualification and fitness to practice that profession.
The act also required the State Board of Health to issue certificates to those measuring up to the requirements of the law; the board were to have two forms of certificates, one for those who were graduates of medical colleges, and the other for those found on examination by the board to possess the necessary qualifications. The holders of these certificates were required to have them registered in the county clerk’s office of the county of their residence.
The eighth section of that act, now section 8514, Revised Statutes 1899, is: “ The State Board of Health may refuse certificates to individuals -guilty of unprofessional or dishonorable conduct, and they may revoke certificates for like causes, after giving the accused an opportunity to be heard in his defense before the board.”
In the eleventh section of the act, now section 8517, Revised Statutes-1899, is this proviso-, “the provsions of this article shall not apply to those persons who have been practicing medicine five years in this State. ’ ’ Under that proviso relator contends that the respondents who now compose the State Board of Health have no jurisdiction over him, no authority to try him on the charges mentioned.
Under the act of 1883, the relator was not required to have a certificate from the State Board of Health to *558entitle bim to practice medicine, because he had «been practicing for a period moré than five years before the law was enacted. That act prescribed b.ut two forms of certificate, one for the graduate of a medical college, the other for the man found qualified by examination by the board. The relator came within the description of neither the one nor the other, he belonged to a class expressly excepted from the operation of the statute. But he was not satisfied to stand on Ms legal exemption, he wanted a certificate from the State Board of Health to register and to show. Therefore, he applied to the board and obtained a certificate under its official seal and the signature of its officers and members, declaring that he was “legally authorized, under the provisions of the act to regulate the practice of medicine and surgery in the State of Missouri, approved April 2, 1883, to continue such practice.” It is to show cause why the board ought not to revoke that certificate that the relator has been cited to appear before the board.
Under section 8514 the board is not required to issue a certificate to every one who comes with a diploma or who possesses the necessary learning to pass an examination, but in spite of his diploma or of his learning the board may refuse him a certificate if he is guilty of unprofessional or dishonorable conduct. The certificate, therefore, implies not only that the holder is learned in the science, but that he is, from a moral or ethical standpoint, worthy to be trusted.
This relator has seen fit of his own volition to apply to the board for such a certificate, has obtained it, has published it by having it registered in two counties, still holds it, and now maintains that the board has no right to revoke it, even if it should find after investigation that he is morally unworthy to exercise the high calling, because he says the board had no right to issue. it in the first place.
A complaint of that kind does not make a very persuasive appeal for a writ which, after all, is within *559the sound discretion of the court to issue or refuse, independent of strict technicality, as the very right and justice of the case requires. In this case if the’hoard on investigation should find the relator guilty of the charges preferred, the utmost it could do would he to cancel the certificate that it has itself issued, leaving the relator in full possession of what he now says the law gives him, independent of the hoard, that is, the right to practice medicine on his own merits, hut it would not leave him armed with this certificate of good character from the State Board of Health. The relator has no right to hold that certificate if he is unworthy of the confidence it invites.
The gravamen of the complaint in the petition is that the hoard is going to try him without exercising compulsory process to bring before it the witnesses he needs for his defense. The State Board of Health is not a court, is not a judicial tribunal; it can issue no writ, it can try no case, render no judgment,- it is merely a governmental agency, exercising ministerial functions; it may investigate and satisfy itself from such sources of information as may be attainable as to the truth or falsity of charges of misconduct against one holding one of its certificates, but its investigation does not take on the form or character of a judicial trial. The law does not contemplate that the technical rules of evidence applicable to a judicial trial will be strictly followed or that compulsory attendance of witnesses will be made. It contemplates that a plain, honest, common sense investigation shall be made, with good faith and as thorough as may be with the light of such evidence on either side as is obtainable without process and with the means at hand; much like the investigation that fair-minded intelligent men would make in their own business concerning the alleged misconduct of one of their employees, with this difference only, that the board cannot revoke the license except for *560cause and after tlie accused has had an opportunity to be heard.
The statute above quoted says the board may refuse to issue the certificate, or may revoke it after it has been issued, if the man is unworthy; this implies that the board may have had some information of misconduct of an applicant which would justify a- refusal to issue the certificate, or after the certificate is issued that would justify its recall, and in either case the board is authorized to act “after giving the accused an opportunity to be heard.” Those are the only words that suggest a trial and they fall far short of a judicial trial. To guard and protect the health and welfare of its people the State must have its ministerial agents or officers and intrust them with power; if every administrative act that looks to the enforcement of the law should be required to be reduced to the compass of a lawsuit and be put into effect only after a court had at the end of a formal trial stamped its judgment upon it, the government would make slow progress. There must be trust reposed somewhere and power to execute the law. The General Assembly has taken great care to secure trustworthy men to perform the duties.that are devolved on the State Board of Health. Section 7519 provides that: “At least five (of the seven) of said board shall be physicians in good standing, and of recognized professional and scientific knowledge, and graduates of reputable medical schools and they shall have been residents of the State for at least five years next preceding their appointment.”
The duties of the board are of an administrative or ministerial character, and therefore as long as its acts are within the scope of the exercise of a reasonable discretion it is free to act. [State ex rel. v. Gregory, 83 Mo. 123.] If perchance, through a misunderstanding of the law, the board should refuse to perform a given duty, the writ of mandamus will right the wrong. [State ex rel. v. Lutz, 136 Mo. 633.] But the writ of *561prohibition does not go against sneh a body; it goes only against a court or a tribunal exercising judicial functions.
"We have very recently held that a writ of prohibition would not go against the Board of Election Commissioners, because although it exercised a large discretion (in the case there under review having to investigate, and find from the evidence and decide.which of two antagonistic sets of claimants was entitled to recognition as the lawful committee of a political party), yet it was the act of a ministerial and not a judicial body and the act to be performed was not a judicial act. [Kalbfell v. Wood, 193 Mo. 675.]
We have held in reference to a county court, which is a tribunal possessing judicial as well as administrative or executive powers, that in the exercise of the latter the court was not acting in a judicial capacity and therefore the writ of prohibition would not run against it. [State ex rel. v. Clark County Court, 41 Mo. 44; followed in Casby v. Thompson, 42 Mo. 133; Vitt v. Owens, 42 Mo. 512, and Hockaday v. Newsom, 48 Mo. 196.] State ex rel. v. Elkin, 130 Mo. 90, was a suit for a writ of prohibition against a county court, and the distinction was again drawn between the two kinds of functions that such a court exercised, and it was held that whilst the writ of prohibition would not go to restrain its action in a ministerial capacity it would go if the court assumed a judicial function that did not belong to it. The court in that ease, per Barclay, J., said (l. c. 105): “The writ of prohibition is applicable whenever judicial functions are assumed which do not rightfully belong to the person or court assuming to exercise these functions. . It is the nature of the act which determines the propriety of the writ. ’ ’ The language there used is broad enough to mean that if any person or tribunal, though possessing no judicial character at all, should assume to exercise a judicial fune*562tion, the writ of prohibition would be a proper process to prevent the action. That language, however, cannot be taken as a decision of the court to that extent, because the court was reviewing the action of a county court, which, as we have seen, has a judicial side to its composition, and the question then before this court was whether the act of the county court there in question was one that pertained to its judicial or its administrative side. In such case, of course, the nature of the act under review was decisive of that question.
But if we should apply the language just quoted in its broadest sense to the facts of the case at bar, it would not bring the respondents within the range of a writ of prohibition, because the act complained of and sought to be prohibited is not judicial in its character.
In Higgins v. Talty, 157 Mo. 280, charges of keeping a disorderly house had been preferred against a dramshop-keeper, and Higgins, the excise commissioner, had cited him to show cause why his license should not be revoked. The dramshop-keeper applied to a circuit judge for a writ of prohibition against the excise commissioner to prohibit him from trying the accused on the charges, because he said to try him was to exercise a judicial function which under the Constitution could be exercised only by a court. This court, in an opinion by Burgess, J., said (l. c. 291): “The proceeding was merely by way of investigation, and was in no sense, a trial;” that the excise commissioner in proceeding to investigate the charges “was not acting judicially, but under the power conferred upon him by statute with respect to the subject-matter over which he has exclusive control. ’ ’
In State v. Hathaway, 115 Mo. 36, it was expressly decided that the State Board of Health was not a judicial body and that the powers conferred on it by statute were not judicial in character. After referring to the cases of State ex rel. v. Gregory, 83 Mo. 123, and State ex rel. v. State Board of Health, 103 Mo. 22, in which *563were expressions to the effect that the duties of the hoard were quasi- judicial, it was said hy the court, per Gantt, J.: “There is nothing in either of them which justifies the charge that this court hy its language in those eases recognized that the power conferred upon the hoard of health in any manner trenched upon that jurisdiction conferred hy our Constitution upon the judiciary of this State. ’ ’ And later in the same opinion it is said: “A judicial duty within the meaning of the Constitution is such a duty as legitimately pertains to an officer in the department designated by the Constitution as judicial. And we can hut commend in this connection the language of the same court in Flournoy v. City, 17 Ind. 169: ‘An act is none the less ministerial because the person performing it may have to satisfy himself that the state of facts exists under which it is his right and duty to perform the act. ’ ’ ’
In the ease now before us for judgment we hold that the State Board of Health is not a judicial body, that it has the power to revoke a license or certificate issued hy it if after investigation in which the licensee is afforded an opportunity to he heard it is satisfied that he has been guilty of unprofessional or dishonorable conduct, and that in conducting such investigation (or trial if that term is preferred) it is not assuming to exercise a judicial function; therefore, a writ of prohibition does not lie to prevent the investigation.
Writ denied. Brace, G. J., Gantt, Burgess, Fox and Lamm, JJ., concur; Marshall, J., concurs in the result.