The Admiral doesn't have the leadership or organizational skills to arrange an orderly transition when an inmate graduates.[If this weren't text, there would be disgust in Narvin's voice at the lack of paperwork.]
As best I can tell, the inmate simply drops off your warden item with no warning and no message and no indication whether the inmate has graduated or simply vanished from the Barge until you track your inmate, or ex-inmate down to see for yourself.
Bureaucrat filter
As best I can tell, the inmate simply drops off your warden item with no warning and no message and no indication whether the inmate has graduated or simply vanished from the Barge until you track your inmate, or ex-inmate down to see for yourself.