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When the meetings happen is something you will have to ask them about.
The questions that are asked, I'm not sure about, because I guess they don't require you to go to the meetings in Oakland county. However, I personally would see it a lot like any other potentially hostile law enforcement interaction. If they ask why you're getting a CPL, they should be told you paid for it, and it's your right, or something like that. If they ask about something from your past, I would tell them that it doesn't bar you from getting a CPL, and you aren't interested in discussing it. If they had a right to deny you, they would have. So I wouldn't bother answering any stupid questions.
Could be wrong about this being a good approach since I never had to go to one of the meetings, but it is how I would do it.