Let's see:
1. You can indict a ham sandwich.
2. If not perjury, obstruction of justice?
This is a game it is hard to win if the prosecutor does not just say forget it there was no crime here.
"You can indict a ham sandwich."
So the saying goes; and there's a lot of truth to that. Once a person is indicted, even when found not guilty, their influence and integrity is tainted.