He'll probably be fired pretty quickly. Paid leave is used by a lot of companies as a way to get you off the premises calmly with a glimmer of hope that you'll be reinstated once the investigation is over. Once you're out they can notify you by mail that you're terminated.
Was thinking of Futurama episode “How Hermes Got His Groove Back”
Morgan: As your superior, I hereby relieve you of duty. Consider yourself on paid vacation.
Hermes: Oh! The ultimate penalty!