Just wait...
Well, maybe things will get better once it becomes a criminal matter. Then?
Search warrant his stuff, turn the place upside down, cart off and analyze anything that can store data. You know, standard operating procedure. No more faffing about with having the employer compel the employee. It's rubbish, if it's all but certain that he stole it, then warrant it and seize it.
Biting the hand that feeds IT
