‘As an example, HaRav Trager cited an incident that took place in America, when Reb Chaim Kreiswirth conferred semichoh upon a certain man and subsequently discovered that the recipient had behaved unworthily. Giving some excuse, Reb Chaim immediately took the document back. The recipient took Reb Chaim to court, claiming that what had been given could not be revoked and that he could not retract the semichoh after having given it.
Reb Chaim went to court and argued that there is a distinction between a permit and a diploma. A diploma is an earned title which, once conferred, cannot be retracted. This is customary the world over.