Dr. Harry V. Flynn, a licensed dentist, practicing in the state of Washington, is charged in the instant case with unprofessional conduct. He was given a statutory administrative hearing (RCW 43.24.110), at which he was represented by counsel. The administrative hearing board found that Dr. Flynn was guilty of three counts of unprofessional conduct. Based upon this, the director of licenses of the state of Washington issued an order revoking Dr. Flynn’s license to practice dentistry. Dr. Flynn appealed to-'the superior court, which heard the cause upon the record made before the administrative hearing board.-
A review of the record reveals the following, sequence of events in the superior court. On May 23, 1956,-the trial judge rendered a memorandum opinion in which he stated that none of the charges against Dr. Flynn was supported by substantial and competent evidence; and he stated that he. would reverse the order of the director of licenses. On August 6, 1956, the trial judge rendered a second memorandum opinion. Therein, he stated that-only: :one of the three charges of unprofessional conduct against. Dr. Flyrm was supported by the record made before the board, stating furthermore that he would remand the case for imposition of a penalty for that one act of unprofessional conduct.
On August 31, 1956, the board, including the director of licenses as chairman, issued a supplemental order, stating that the one count which had been sustained by the superior court was a sufficient basis, for revoking Dr. Flynn’s license, and again ordered his license revoked. On December 6,1956, the trial judge rendered his third memorandum opinion. In it, he stated that the board was without jurisdiction to enter its supplemental order of August 31, 1956, because the case, formally, had not been remanded to the board. The trial judge granted a motion to strike the supplemental order.
On March 29, 1957, the trial judge rendered his fourth and last memorandum opinion, and on April 29, 1957, he entered findings of fact, conclusions of law, and judgment in accordance therewith. He found that only one of the three charges was sustained by substantial and competent evi-*592denee — that Dr. Flynn had employed an unlicensed dentist “to do and perform a dental operation on the mouth and teeth of one William B. Curley,” in violation of RCW 18-.32.230 and RCW 18.32.350. The trial judge called attention to the severity of the penalty, but stated that, since one of the counts was supported by the record, he did not believe he had authority to do anything other than to affirm the order of the director of licenses.
The first question presented on this appeal — the meaning of the word de novo as used in the statute granting the right to appeal to the superior court — was. determined adversely to appellant’s contentions in In re Harmon (1958), ante p. 118, 323 P. (2d) 653.
It remains to be determined whether the penalty imposed is arbitrary and capricious or contrary to law. In considering this matter, we do not think that it is sufficient to look merely at the words of the statute and their literal meaning. It is important to determine whether the legislature, constitutionally, could provide that a dentist’s license should or could be revoked if he employed an unlicensed dentist under the circumstances of the instant case 2 In In *593re Kindschi (1958), ante p. 8, 319 P. (2d) 824, we pointed out that the United States supreme court has indicated that the principles of due process and equal protection apply to proceedings regarding the licensing of lawyers. We quoted two paragraphs from a recent supreme court opinion (Software v. Board of Bar Examiners of New Mexico (1957), 353 U. S. 232, 1 L. Ed. (2d) 796, 77 S. Ct. 752) as evidence of that court’s attitude on problems in this area of the law:
“A State cannot exclude a person from the practice of law or from any other occupation in a manner or for reasons that contravene the Due Process or Equal Protection Clause of the Fourteenth Amendment. . . . [citing cases]. A State can require high standards of qualification, such as good moral character or proficiency in its law, before it admits an applicant to the bar, but any qualification must have a rational connection with the applicant’s fitness or capacity to practice law.” (Italics ours.)
“We need not enter into a discussion whether the practice of law is a ‘right’ or ‘privilege.’ Regardless of how the *594State’s, grant of permission to engage in this occupation is characterized, it is sufficient to say that a person cannot: he prevented from practicing except for valid reasons. Certainly the practice of law is not a matter of the State’s grace. Ex Parte Garland, 4 Wall. 333, 379.” (Italics ours.) Schware v. Board of Bar Examiners of New Mexico, supra, Footnote.
Is there a “rational connection” between the acts giving rise to the revocation of Dr. Flynn’s license to practice and his fitness or capacity to practice dentistry so as to. constitute a “valid reason” for revoking his license? If this question is answered in thé negative, it makes no difference if the penalty was within the literal words of the statute— because, as we view the matter, the law as so- applied or interpreted would violate the due process and equal protection clauses of the Federal constitution.
In order to answer the due process question, we shall examine Dr. Flynn’s conduct. What did,he do? On substantial evidence, the administrative -committee found that he permitted Paul Holbrook, a dentist not then licensed to practice in this state, to fill a cavity in a patient’s mouth. This fits the literal wording of the statute, but it is not the whole story. Mr. Holbrook was a graduate of an accredited dental school; he was licensed to practice in at least one other state; he is now licensed to practice in Washington, and, at the time in question, he was employed hy the state of Washington as a dentist in the Firland Sanitarium. Taking all of these additional factors into consideration, is Dr. Flynn’s action in allowing Mr. Holbrook to fill a cavity in a patient’s tooth a “valid reason” for revoking his license?
A basic purpose for the licensing of dentists is to protect the public from incompetent and untrustworthy dentists. Therefore, it is appropriate and necessary that Dr. Flynn’s conduct be examined with this in mind.
No question has been raised as to Dr. Flynn’s competency in dental skills. The question then is whether his conduct evidences such untrustworthiness as to constitute a valid reason for revoking his license. We believe that in the present case such untrustworthiness could be shown through *595(a) the hiring of an incompetent employee or (b) the willful violation of the licensing laws. . .
The fact that Mr. Holbrook was not licensed in this state when he worked for Dr. Flynn is prima facie evidence that the state did not consider him to be competent. But this inference must be held to be rebutted by the uncontradicted evidence that the state thought him competent enough to work for it in the Firland Sanitarium. There is no evidence in the record tending to prove that the work Mr. Holbrook performed on Mr. Curley’s teeth was not competently done; nor does the record reveal any harm or danger to the patient , as a result of Mr. Holbrook’s services. Upon these facts, there is no basis for concluding that Dr. Flynn hired an incompetent employee and so evidenced such untrustworthiness as to constitute a “valid reason” for revoking his license.
There is another aspect to untrustworthiness involved in this case, however. The maintenance of the integrity of the licensing system is important, if the purpose of the licensing system is to be achieved. Even a technical violation of the licensing laws evidences some degree of untrustworthiness. In In re Kindschi, supra, we said that “a willful and intentional attempt to avoid payment of all or a part of one’s income tax with intent to defraud the government” evidenced untrustworthiness to practice medicine. We believe that the key words are willful and intentional. If a licensed dentist willfully and intentionally flaunts the licensing laws by hiring a nonlicensed dentist, we believe he demonstrates such untrustworthiness as to constitute a “valid reason” for revoking his license. On the other hand, if a licensed dentist inadvertently or negligently employs a nonlicensed dentist in violation of the statute, we do not believe that his conduct indicates a state of mind which should be characterized as such untrustworthiness so as to constitute a “valid reason” for revoking his license and tossing him out of his profession.
Even the inadvertent or negligent hiring of a nonlicensed dentist is reprehensible and a proper subject for dis*596ciplinary proceedings in order to prevent its repetition by the licensed dentist and to maintain the integrity of the licensing system. But revocation of a license is much like the death penalty in criminal law — it is hot imposed to reform the particular person involved.
: In this-case, Dr. Flynn was not charged with willfully violating the license laws by knowingly hiring an unlicensed dentist. The administrative committee did not find that he willfully and intentionally hired a nonlicensed dentist. The record does not indicate either actual or constructive intent on Dr. Flynn’s part to hire a. nonlicensed dentist. He obtained Mr. Holbrook’s name through a dental supply house, and he checked with the Firland Sanitarium.
On the basis of the record before us, we believe that'the only defection proved against Dr. Flynn is that he inadvertently hired a nonlicensed dentist in violation of the -literal wording of the statute. We do not believe that there is a “rational connection” between this particular defection or conduct and his fitness or capacity to practice dentistry. In view of this, it then follows that the legislature could not, constitutionally, have provided that his license be revoked for such conduct. Schware v. Board of Bar Examiners of New Mexico, supra. A statute is to be construed so as to render it constitutional. Household Finance Corp. v. State (1952), 40 Wn. (2d) 451, 244 P. (2d) 260. It follows that the penalty imposed is in excess of the authority of the act, and is contrary to law. We have no authority to substitute our judgment for that of the director of licenses in respect to the disciplining of members of the dental profession for unprofessional conduct. Our jurisdiction is limited to determining whether the action taken by the director followed the statute and met due process constitutional standards. See In re Kindschi, supra.
The judgment should be reversed with directions to remand the case to the director of licenses for the imposition of an appropriate disciplinary penalty. It is so ordered.
Weaver, Rosellini, Foster, and-Hunter, JJ., concur.
The constitutional protections afforded through the application of due process standards are certainly not limited to the matter of property rights. It is readily apparent from the field of criminal law that due process considerations apply to areas of the law strictly involving questions of deprivation of “human rights” or “personal rights.” There should be no question, therefore, that due process considerations apply to the field of licensing, which involves, at the very least, quasi-property rights. (Cf. Schware v. Board of Bar Examiners of New Mexico, supra.)
In State v. Cater’s Motor Freight System (1947), 27 Wn. (2d) 661, 179 P. (2d) 496, this court said:
“The purpose of the constitutional guaranty of due process of law is to protect the individual from the arbitrary exercise of the powers of government. However, if a statute provides penalties for noncompliance with an administrative order, and such penalties are not in such amounts as to be prohibitive, and a reasonable opportunity is given to test such penalties in a proper hearing, due process has not been defeated.
“ ‘The imposition of severe or excessive penalties may violate the due process guaranty, especially if access to the courts to test the constitutional validity of a commission’s orders is denied, if the right of review actually given is one of which a carrier may avail itself only at the risk of having to pay such penalties if the order is found to be valid, or if the penalized acts had the supposed sanction of the law. A reason*593able penalty will be sustained. A state, however, has power to impose a punishment heavy enough to secure obedience to administrative orders of a state commission after they have been found to be lawful and to impose a penalty for acts of disobedience committed after ample opportunity to test the validity of such orders and failure to do so.’ . . .'’ (Italics ours.)
In Brown v. Seattle (1928), 150 Wash. 203, 272 Pac. 517, the court said:
“Regulatory legislation attempting to control a lawful business which does not fall within the objectionable or prohibitable classes, and which is conducted upon private property, must be reasonably adapted to promote the public health and general welfare in some particular manner, and must tend to prevent some existing or directly anticipated menace thereto. What is a reasonable exercise of the police power under these circumstances depends largely upon the nature or character of the undesirable conditions to be overcome or prevented. Whyte v. City of Sacramento, 65 Cal. App., 534, 224 Pac. 1008. There must also be some logical connection between the object sought to be accomplished by the legislation and the means prescribed to accomplish such purpose.” (Italics ours.)
For other cases applying substantive due process standards see: Patton v. Bellingham (1934), 179 Wash. 566, 38 P. (2d) 364, 98 A. L. R. 1076; Manos v. Seattle (1933), 173 Wash. 662, 24 P. (2d) 91; and Northwestern Nat. Ins. Co. v. Fishback (1924), 130 Wash. 490, 228 Pac. 516, 36 A. L. R. 1507.