When reviewing and eventually dismissing the action for judicial review, Lord Greene, M.R.
stated, that the courts will not interfere with the discretion assigned to public authorities,
provided that
(i) the authority took into account all the things it ought to have taken into account,
(ii) the authority did not take into account things they should not take into account
(improper purposes) and
(iii) the decision is not unreasonable, i.e. it is not a decision that no reasonable
authority could ever have come to