I noticed that you posted "government", thats pretty vague. because there are federal, state, and of course local government agencies that he can be under and had worked for prior to his disability.
SOME rules are different. I guess the biggest thing is to just go to where he had worked and file a statement.
of course, he will get to see any and all information and/or evidence brought aginst him in a hearing.
if it goes that far.