I'm not aware of that aspect of the Auditor General's report. However, in comment on the accuracy of the restricted firearms registry and the prohibited firearms registry versus the long-gun registry, the information data contained in the long-gun registry was not obtained in the same fashion as that for restricted firearms and prohibited firearms, which for years, since 1934, have been registered by the RCMP and held within a national database.
On May 26th, 2010. See this statement in context.