MzG, the company did make it quite clear that intimidation would not be tolerated, so all she needs to do is report it to her line manager. But besides, if that's the worst that she comes up against, I don't think she has too much to worry about.
We are all only too well aware that as unfortunate as it is, we DO have 'manager's' in ALL departments of this company who are not fit to be in their role!!