ADMINISTRATIVE LAW - RIGHT TO INFORMATION - REFUSAL OF ACCESS - UNLOCATABLE DOCUMENTS - request for copy of agreement between agency and media organisation for filming of documentary series - agency could only locate a draft version of the agreement - whether agency has taken all reasonable steps to locate the signed version of the agreement - whether access to the agreement can be refused on the ground that it is unlocatable - sections 47(3)(e) and 52(1)(b) of the Right to Information Act 2009 (Qld)