This is a very complex question you've just asked, so I'll start at the beginning.
A former minister would have to clear whatever work he or she wants to do in the future with the conflict of interest and ethics office. Let's assume that's been done and that's cleared. Any communication in relation to a contract.... This example you're giving me is a corporation, so it's for profit. Therefore, that individual would be able to lobby up to a significant part of their work—up to eight hours and historically up to 32 hours. This person, according to the Lobbying Act, is entitled to lobby up to eight hours. That's a problem, so that's the first thing that needs to be fixed.