In developing the list of documents in proposed section 56.1, we got together a fairly large group of people from a variety of different federal departments to try to identify which documents were primarily used for identification purposes. As has already been noted, the Senate legal and constitutional affairs committee added the death certificate, because at the federal level we simply didn't advert to that particular document.
We can't be absolutely positive that we've covered every document. All we can do is bring together enough people, and through the parliamentary process and all the representations that get made before committees, hopefully at the end of the process we'll have the documents that are the most important. On the amendment passed by the Senate to add “or other similar documents”, if it's in any way similar to the documents listed but isn't specifically listed, it should be covered. So that addition will go a long way toward making sure the list is adequate.