Administrative law - Reasons for decision - Adequacy - Accident compensation - Workers compensation - Aggravation injury - Medical panel - Jurisdiction - Referral of questions - Opinion - Panel deciding employment was a significant contributing factor to part of worker's alleged injuries - Panel opinion set aside because of inadequacy of reasons - Panel re-examining plaintiff and forming same opinion - Whether basis of second opinion exposed - Accident Compensation Act 1985 (No 10191) s 5.

Administrative law - Judicial review - Domestic body - Refusal of membership - Amenability to judicial review - Datafin principle - Applicability in Australia - Company limited by guarantee - Administrator of overseas student tuition assurance scheme - Statutory approval by Commonwealth Minister for Education - Membership of company a precondition to scheme membership - Whether company exercising governmental powers - Education Services for Overseas Students Act 2000 (Cth) - Education Services for Overseas Students Regulations 2001 (Cth)

Administrative law - Domestic body - Procedural fairness - Hearing rule - Applicability - Anonymous allegations of misconduct - Reputation - Sufficiency of interest to attract hearing rule.

Administrative law - Reasons for decision - No special circumstances warranting imposition of duty to provide reasons.