ADMINISTRATIVE LAW - RIGHT TO INFORMATION - REFUSAL OF ACCESS - EXEMPT INFORMATION - LEGAL PROFESSIONAL PRIVILEGE - expert engineer report obtained by professional body in course of investigation into member conduct and contemplated disciplinary action - dominant purpose of obtaining report from expert engineer - whether disciplinary proceedings constitute reasonably anticipated litigation - whether report attracts legal professional privilege - whether report is exempt under schedule 3, section 7 of the Right to Information Act 2009 (Qld) - whether access may be refused under section 47(3)(a) of the Right to Information Act 2009 (Qld)