Opinion
Joan Keaton appeals from a judgment declaring that her husband Morgan Keaton “could not be and is not, the fathеr” of a child bom to her on March 20, 1968.
The parties were married March 24, 1967. A stipulation entered into at the trial recitеd: “They lived together from March 24, 1967, until the date of separation, July 9, 1967. From the period of June 1, 1967, until the period of June 10, approximately, 1967, Mr. Keaton was absent from, the family home on business, continuously. Mr. Keaton, if called to the st&nd, would testify that frоm the period of June 1, 1967, up to and including today, he has not had marital relations with Mrs. Keaton, or intercourse. And Mrs. Keatоn, if called to the stand, would testify that from the period of June 10, 1967, until the time of separation on July 9, 1967, the parties did have intеrcourse.” Over Joan’s objection the trial court admitted in evidence a laboratory report on a “Paternity Exclusion Test.” This test of the blood of Morgan, Joan, and the child, indicated that Morgan could not be the natural father.
Joan contends that the trial court erred in admitting the blood tests in evidence. She relies on Evidence Code section 621, which states: “Notwithstanding any other provision of law, the issue of a wife cohabiting with her husband, who is not impotent, is conclusivеly presumed to be legitimate.”
Section 621 codifies a centuries-old principle that the integrity of the
*216
family, when husband and wife are living together as such, should not be impugned. The husband is deemed responsible for his wife’s child if it is conceived while thеy are cohabiting; he is the
legal
father and the issue of biological paternity is irrelevant. Moreover, Legislatures and сourts have been understandably hesitant in such cases about weighing probabilities of paternity and chose in that mannеr to resolve doubts in favor of the child’s legitimacy. (See
Kusior
v.
Silver,
The conclusive presumption now found in section 621 has beеn widely criticized. It has been said to be “grounded on hypocrisy and untruths”
(Wareham
v.
Wareham,
We need not add our voice to the debate whether section 621 is truly in the public interest. The law of California is made clear by the positive language of that section and by the authority of
Kusior
v.
Silver, supra,
The court in Kusior v. Silver was dealing with the parent statute to Evidence Code section 621. The earlier statute, Code of Civil Procedure section 1962, subdivision 5 (repealed, effectivе Jan. 1, 1967) provided: “Notwithstanding any other provision of law, the issue of a wife cohabiting with her husband, who is not impotent, is indisputably presumed to be legitimate.” The language of the two sections is identical except that the word “indisputably” (here italicized by us) was changed in the later section to the word of substantially similar meaning, “conclusively.”
Kusior v. Silver (p. 620) held that where the conditions of Code of Civil Procedure section 1962, subdivision 5—a “wife cohabiting with her husband who is not impotent”—exist, “the result of blood tests . . . may not *217 be used to controvert the conclusive presumption of paternity created by” that section.
No evidence of Morgan’s impotency was offered at the trial and no contention of such impotency is here madе. Upon Morgan would rest the burden of producing such proof since he is the party who would have peculiar meаns of such knowledge. (See
S. D. W.
v.
Holden, supra,
Morgan has mistakenly placed reliance on
Jackson
v.
Jackson,
A clear implication of
Jackson
v.
Jackson
should be noted: If during the four days of cohabitation with her husband, the wife had in fact conceived as a result of sexual intercourse with another man, the conclusive рresumption of the statute that the husband was the father would nevertheless apply, regardless of any blood test result. Thus,
Jackson
v.
Jackson
affirms and follows the strict interpretation given the statute by
Kusior
v.
Silver, supra,
The rule applicable to this case, as pointed out by Kusior v. Silver, supra, and Jackson v. Jackson, supra, follows: Although the blood tests with other *218 evidence were admissible on the issue whether conception did in fact occur during cohabitation of the spouses, when the trial court found that conception did so occur, the conclusive presumption of legitimacy attached by virtue of section 621. The trial court erred in not applying the conclusive presumption.
The judgment is reversed; the superior court will enter judgment in favor of defendant Joan Keaton.
Molinari, P. J., and Sims, J., concurred.
