spent money on trawlers to take advantage of MAFF policy.
system then changed.
claimed there was breach of its legitimate expectations.
J held there was some precedent in favour of a doctrine of substantive
justified on principle of fairness in public administration.
of whether expectation is legitimate is balancing act to be struck initially by
if outcome challenged by JR, court’s criterion was not bare rationality of
whilst recognising constitutional importance of ministerial freedom to
reformulate policy, must deciding whether individual’s expectation of different
treatment has legitimacy which in fairness overrides policy choice.
adopted here were proportionate to end in view.