"It was argued on the authority of Rex v. Port of
London Authority, Ex parte Kynoch Ltd. (1919) 1
KB 176 that the Minister is not entitled to make a
rule for himself as to how he will in future exercise
his discretion. In that case Kynoch owned land
adjoining the Thames and wished to construct a
deep water wharf. For this they had to get the
permission of the authority. Permission was refused
on the ground that Parliament had charged the
authority with the duty of providing such facilities. It
appeared that before reaching their decision the
authority had fully considered the case on its merits
and in relation to the public interest. So their
decision was upheld.
Bankes L.J. said, at p 184:
'There are on the one hand cases where a
tribunal in the honest exercise of its
discretion has adopted a policy, and, without
refusing to hear an applicant, intimates to
him what its policy is, and that after hearing
him it will in accordance with its policy
decide against him, unless there is
something exceptional in his case. I think
counsel for the applicants would admit that,
if the policy has been adopted for reasons
which the tribunal may legitimately
entertain, no objection could be taken to
such a course. On the other hand there are
cases where a tribunal has passed a rule, or
come to a determination, not to hear any
application of a particular character by
whomsoever made. There is a wide distinction
to be drawn between these two classes.'"