Petition for a writ of prohibition.
The petitioner, Goodman Bros., Inc., is named as one of several defendants in a superior court action brought by its employee, Clemenee Aho, to recover damages for his personal injuries received by him while acting in the course and scope of his employment. So far as petitioner is concerned, it is named as a defendant in that action on the theory that it was uninsured against liability for injuries to its employees as required by section 3700, Labor Code, and, therefore, under section 3706 of that code, an action may be brought against it in the superior court. Petitioner, by this proceeding for prohibition, seeks to restrain further prosecution of the superior court action, so far as it is concerned, on the theory that the superior court has no jurisdiction of this petitioner. This contention is predicated on the allegation that the employee recovered an award of compensation in a proceeding before the Industrial Accident Commission, in which proceeding it was found that petitioner was insured, and an award was granted its employee Aho against petitioner’s insurance carrier. Petitioner contends that this finding in the action before the commission is res judicata in the superior court action as to a jurisdictional fact, that it conclusively determines that petitioner was insured, and that this adjudication deprives the superior court of jurisdiction.
*299 Section 3706, Labor Code, provides that: “If any employer fails to secure the payment of compensation, any injured employee or his dependents may proceed against such employer by filing an application for compensation with the commission, and, in addition, may bring an action at law against such employer for damages, as if this division did not apply.” Section 3707, Labor Code, permits the employee to attach the property of the employer in such action, while under section 3708, it is provided that in such action negligence on the part of the employer is presumed, and contributory negligence on the part of the employee is no defense. Under the provisions of section 3709 if an employee obtains a judgment in excess of the amount awarded in the compensation proceeding “the compensation awarded by the commission . . . shall be credited upon such judgment.”
Under these sections, if an employee is injured in the course and scope of his employment, and the employer is uninsured, the employee may proceed both before the commission and in the regular courts. If the employer is in fact insured the regular courts have no jurisdiction.
The petition herein alleges that while Aho was employed by petitioner, on March 4, 1941, he received an injury arising out of, and in the course of, his employment, and that on March 31, 1941, he filed his application with the Industrial Accident Commission for compensation, naming petitioner as his employer and the Fidelity & Casualty Company of New York as the employer’s insurance carrier. In this petition before the commission Aho alleged, in effect, that there was a controversy over whether the employer was in fact insured, and over whether a penalty should be imposed against the employer for being wilfully uninsured. Aho filed this application on his own behalf. The petition for prohibition alleges that a hearing was had in San Francisco on Aho’s application on April 14, 1941, at which Aho appeared and testified; that a further hearing was had in Fresno on May 2, 1941, at which only the employer and the Fidelity Company were represented; that on May 23, 1941, an attorney filed a notice of appearance on behalf of Aho; that on May 26, 1941, Aho filed a complaint for damages in the superior court against petitioner in which it was averred that petitioner employer was uninsured. A second count of this complaint was directed against J. G. Johnson, Inc., alleged to be the *300 owner of the premises on which the injury occurred. It should be pointed out that the petitioner in the present proceeding only seeks to restrain the superior court action as to it. The question of the liability of J. G. Johnson, Inc., is not involved in this proceeding.
The petition for prohibition next alleges that on June 23, 1941, the attorney for Aho filed an affidavit in the proceeding before the commission in which he set forth that the insurance policy issued by the Fidelity Company was dated March 4, 1941, at noon; that the accident happened at 10:45 a. m. on that day; that from the face of the policy it was apparent that it was not in effect at the time of the accident; that it was on this theory that the superior court action against Goodman Bros., Inc., had been filed; that after the filing of that complaint affiant learned that the insurance company deems itself liable on the policy because of certain representations made to Goodman Bros., Inc., by the agent of the insurance company; that affiant does “not concede or stipulate that Goodman Bros., Inc., was covered at the time of the accident or had an insurance policy for compensation insurance in effect at the time of the accident, but under the circumstances of this case, it is very questionable whether or not plaintiff would be able to prove non-insurance on the trial of the personal injury action.” The petition for prohibition then alleges that on September 8, 1941, the commission made its findings and award in the proceeding pending before it. The commission expressly found that Goodman Bros., Inc., was insured at the time of the accident, and based on this finding, made its award against the insurance company, and released Goodman Bros., Inc., from liability. Thereafter, so it is alleged, Goodman Bros., Inc., filed its answer in the superior court action denying that it was uninsured, and alleging as a separate defense, the prior decision of the commission holding that Goodman Bros., Inc., was insured; that thereafter plaintiff in the superior court action filed a demurrer to the answer and a notice of motion to strike out certain portions of the answer including the defense of res judicata; that on November 19, 1941, the trial court entered its order sustaining the demurrer and granting the motion to strike from the answer the plea of res judicata.
Aho has filed a demurrer and answer to this petition for prohibition. In the answer it is alleged that at all hearings before the commission at which Aho was present the insurance *301 company contested its liability; that at-subsequent hearings Aho was not present in person, or by agent or by attorney; that in May of 1941 the insurance company in a letter addressed to the commission stipulated to assume liability; that the findings of the commission were predicated on this stipulation.
The law is settled that the Industrial Accident Commission proceeds judicially, and that its determinations, subject to the same limitations applicable to judgments of courts generally, are res judicata in all subsequent proceedings between the same parties or those privy to them. This problem has been discussed in at least two California cases. In
Williams
v.
Southern Pac. Co.,
The decision in this case is direct authority in the instant ease. The question as to whether Goodman Bros., Inc., was in fact insured was an issue in the proceeding before the commission. The commission could not and would not have relieved the employer from liability and made its award against the carrier had a finding of insurance not been made.
A similar problem was involved in
Gerini
v.
Pacific Employers Ins. Co.,
27 Cal. App. (2d) 52 [
It follows, therefore, that the prior decision of the commission in this proceeding, if such decision is final and not subject to attack on the ground of extrinsic fraud or mistake or other grounds permitted by law, is res judicata in the superior court action between the same parties on the question as to whether Goodman Bros., Inc., was in fact insured at the time the accident occurred. It is clear from the above decisions that, subject to the limitations above-indicated, the superior court must recognize the determination of that question of fact made by the commission. None of the cases cited by respondent holds to the contrary. They merely establish that where the employer is uninsured the employee may bring an action in the superior court, or he may pursue relief before both the superior court and the commission at the same time. (See
Marshall
v.
Foote,
Nor is the holding of
Rosslow
v.
Janssen,
Although it is the law that the prior final decision of the commission is res judicata in the superior court action on the issue of insurance, that does not mean that the superior court can be restrained by a writ of prohibition from trying the case there pending against Goodman Bros., Inc. The law is settled in this state that the plea of res judicata does not oust a court of jurisdiction—at most, it is conclusive evidence on an issue presented to the trial court—and prohibition is, of course, a writ that only attacks the jurisdiction of the court.
There are many cases holding that the plea of res judicata does.not oust the court where it.is interposed of jurisdiction over the controversy there pending. In
Baird
v.
Superior Court,
*305
The same factual situation was presented in
Reidy
v.
Superior Court,
In
Anglo-California Nat. Bk.
v.
Superior Court,
15 Cal. App. (2d) 676 [
In
Brown
v.
Superior Court,
13 Cal. App. (2d) 693 [
In
Rideaux
v.
Torgrimson,
12 Cal. (2d) 633 [
These cases are conclusive on the point under consideration. The plea of res judicata does not oust a court of jurisdiction and therefore it cannot be enforced by prohibition.
This rule imposes no great hardship on the parties. Under section 597, Code of Civil Procedure, when the answer pleads a prior judgment as a defense, the court may try that issue before the trial of the main case. This supplies a speedy and expeditious method of disposing of that question.
It is true that the trial court may decide the issue incorrectly. If it does so, its error is no different than when it refuses to recognize the binding force of other types of evi *307 deuce. Such errors can only be corrected on appeal from the judgment. In the present case, it is apparent that if the prior judgment of the commission was final, and, if such prior judgment was properly pleaded and was not subject to attack, the trial court committed error (which error is still correctible in the trial court) in sustaining a demurrer thereto, and in striking the defense from the answer. Such error, if any, however, cannot be corrected by prohibition.
The alternative writ heretofore issued is discharged, and the petition for the peremptory writ is denied.
Knight, J., and Ward, J., concurred.
