Well, there are different roles. There are many different inputs to the political desires. There's the policy advice, the legal advice. I've worked in a number of different roles, as you noted.
In drafting legislation, one starts, of course, with a memorandum to cabinet and a record of cabinet decision that gives you very detailed instructions. You have a minister instructing you, but you also have to keep an eye on the cabinet decision, so already there's a balance there. Very frequently there are matters that aren't covered in the decision that have to be dealt with in the legislation. You would bring them forward and discuss them and suggest what might be done. But of course it's always the minister's decision and ultimately the government's decision as to what goes into the legislation.