First, let me make it clear that I do not accept that it is an invariable constitutional practice that the implementation in domestic law of an international law treaty is undertaken by way of primary legislation only. Secondly, when it comes to the implementation of a treaty that has been entered into at the level of international law, the purpose of drawing it down into domestic law is either to accept it into domestic law or not to accept it into domestic law. There is no scope for amending the terms of the treaty
that has already been entered into. Therefore, the use of the affirmative statutory instrument procedure is considered appropriate. It gives this House and the other place ample opportunity to debate whether they should draw down the treaty obligations into domestic law. There is, essentially, no real scope for amendment; therefore, we consider the affirmative procedure perfectly adequate for that purpose.