I don't think, quite frankly, that there's any nefarious distinction to be made. If memory serves, the Anti-Personnel Mines Convention Implementation Act was drafted in three days. If I look at it now, I see some glitches in it which, had I spotted them then, wouldn't be in it now. Referring to Canadian implementing legislation to ministerial powers under a treaty is not something that, had I noticed it and had been involved in the drafting then, would be in the legislation now.
The simple answer, Mr. Dewar, is that there was a drafting error in the original land mines bill that has now been corrected. The minister has no powers under the treaty because the treaty is something conducted among states. This is not something that Canadian legislation can confer on him.