As far as I know, it's in a secure facility there. I don't know that it's on the Google campus. I think it's being held by a third party, but I'm not 100% certain about that. Dr. Whitten may have some additional information.
Wherever it was being stored at the time that the Privacy Commissioner's investigators came to review it is the same place it's being stored today, in a secure manner. It is segregated from the Google corporate network and segregated from any other data, and there is limited access to it. All of the security restrictions in place that were around the data when her investigators came to review it are in place today.