I think a big part of the law clerk's mandate is to support members in drafting private members' bills. We have great, talented legislative drafters in my office.
I see these things coming up in discussions with the relevant MP who is looking to present a private member's bill and in talking about the format of the bill and how you achieve it. In terms of flagging any legal issues, I think that exchange and discussion could take place in that forum and hopefully would assist in the drafting process.