The scheme presented in Bill C-2 , as well as in Bill C-11, is that the Public Servant Disclosure Protection Act is about just that: it's about providing protection for public servants who come forward and make disclosures. That is the role of the commissioner. There are other bodies who have self-initiating investigative capacities, such as the Auditor General, the RCMP, and so on, who could look at other matters. As well, the government itself can initiate an investigation if it believes that there's a discipline issue, etc. at play.
On May 9th, 2006. See this statement in context.