If two men fight and the wife of one touches the private parts of the other, what must be done to her??

Cut off her hand

(and thine ey shall not pity her)
When men strive together one with another, and the wife of the one draweth near for to deliver her husband out of the hand of him that smiteth him, and putteth forth her hand, and taketh him by the secrets:

Then thou shalt cut off her hand, thine eye shall not pity her.Deuteronomy 25:11-12