There is a rule that Ka'asher Zamam vilo Ka'asher Asa: the second set of witnesses have to appear in court "before the punishment" in order that the first witnesses get the punishment Ka'asher Zamam. ...
In parsha ki tetze (Devarim 22) it says if a man takes a wife, hates her, accuses her of not being a virgin, etc. Then the elders spread out the bedsheet to see if there is blood of virginity. If not, ...