Perhaps I could clarify. The witnesses, the officials from the departments, are scheduled to appear before the committee.
Just in light of the broad scope of the subject, they're seeking to be able to provide as thorough responses as possible. So if the questions aren't specific....
They're just looking to have information ready for the members. It's not conditional on their appearance. They're just looking to be prepared. So if you have specific questions to submit, I will relay that to the department. If not, at least if you have perhaps some topics that you would be interested in having more information on, that would help them to prepare for their appearance.