Mahon v. Air New Zealand [1984]

Concerned certain rights of notice in Royal Commission
inquiry.
Aircraft crashed.
Inquiry by Chief Inspector of Air Accidents blamed
Captain.
Yet Royal Commission, also running, exonerated Captain
and blamed airline.
Found predetermined plan by airline to hide truth.
Ordered airline to pay $150 000 to cost of Royal
Commission.
Order in breach of natural justice?
Privy Council held natural justice required Commission
to ensure that any person represented at inquiry that might be adversely
affected by finding should know of this risk and be given opportunity of
adducing his own evidence.
No material that showed predetermined plan of
deception.
Also, certain witnesses not given opportunity to
answer criticisms against them.
Therefore order for costs set aside.