(2) The Council, officers and staff of the Authority shall grant to the Accountant appointed to audit the accounts under subsection (1) all books, deeds, contracts, accounts, vouchers or other documents which he or she may consider necessary to call for, and may require any person holding or accountable for any such document to appear before him or her and make a signed statement in relation thereto and may require from such person such information as he or she considers necessary.