Mr Gaetjens said there were no signs that staff were not co-operating with the inquiry. "I am not going into the details of an inquiry that has not been completed,'' Mr Gaetjens said. "It includes some highly personal information that I think would invade privacy." Labor Senator Penny Wong asked what "personal information" was involved when it was "It's hardly a transparent inquiry,'' she said. "Did I hear you right? You will keep the interviews confidential?,'' she said. "How is Ms Higgins and the public to know who knew what and when if you've given an undertaking of confidentiality?