I thought this question was already addressed, but maybe it was in another thread.
I would ask the question:
If this occurs and the mother does not report it to authorities whereby the father is arrested, then she is an accomplise whether she engages in the act or not.
Also, if the mother has reported this to authorities, it is my understanding the state must investigate, they cannot refuse to investigate such charges.
There have also been cases that children have falsely accused, though perhaps not as often.
OK, then if the wife and mother has reported the incident, and authorities have investigated and the matter is found to be true, the father is out of the home and in a corrective facility; Now what?
Can the wife then act as if the husband is dead?
The marriage is still the marriage. Jesus would say to a person seeking divorce in such a situation of any kind of physical abuse, having sought from authorities to stop the abusive action, and the husband thus being removed from the home, 'ye know not what spirit ye are of'.
BTW, welcome to the BB.
Bro. Dallas Eaton