I think it's important to note that the senior public office holder's side of the relationship is governed under clause 73 of Bill C-2 on page 73 of the bill, which sets out section 9.1 of the Lobbyists Registration Act. That section provides an authority for the commissioner to send the reports that the lobbyist has prepared to the senior public office holder, who is then under a duty to confirm to the commissioner the accuracy and completeness of the report, or else to correct and complete it. In this way the senior public office holder is implicitly put under an obligation to keep track of certain forms of communication in order to perform this actual verification.
On June 12th, 2006. See this statement in context.