innocent, was wrongly thought by her husband to be guilty. She should not, in my opinion, be prejudiced by his mistake.
Thus, in my opinion, the appeal should be dismissed.
DIXON AND EVATT JJ. The questions for decision in this appeal are whether a husband connived at his wife's adultery and, if not, whether he was guilty of wilful neglect conducing to the adultery, or of conduct inducing or contributing thereto.
Under the law of South Australia connivance is an absolute bar and such wilful neglect or misconduct as conduces to adultery is a discretionary bar (Matrimonial Causes Act 1929 (No. 1946), sec. 11 (a) and sec. 12 (1) (f) ). But in South Australia in a suit for dissolution of marriage it is also a discretionary bar if the party suing has been guilty of habits or conduct inducing or contributing to the existence of the ground relied upon (ibid., sec. 12 (1) (d) ).
When the ground relied upon is adultery this new bar must, it would seem, comprehend all conduct covered by the old bar of wilful neglect or misconduct conducing to the offence.
The case presents the peculiarity that the connivance and conduct conducing or contributing imputed to the husband consists much less in overt acts than in state of mind. To some extent our decision must depend upon inferences of fact, but it cannot but be affected by our conception of what constitutes connivance and conduct amounting to the discretionary bar.
Connivance was, of course, an answer in the ecclesiastical courts to a suit for divorce a mensa et thoro, and it is upon the decisions of those courts that the definitions now current rest. Although knowledge of, and consent to, or acquiescence in, the behaviour of the guilty spouse were always regarded as necessary elements in connivance, the earlier tendency was, as might be expected, to regard reckless, careless, or culpable conduct of the spouse complain- ing as a sufficient bar without further inquiry into intention or motive. The course of development was against this tendency. The common law courts, in actions of crim. con., and the eccle- siastical courts alike emphasized the difference between consent to a wife's adultery and negligence, however gross, or inattention to her