 When the authority tried to evict her later, the court held the authority to their promise, since to frustrate Ms Coughlan's legitimate expectation would be unfair in the circumstances.It has been suggested that proportionality (which is now expressly cited as a doctrine of review only in human rights cases and cases with an EU dimension) should become a separate general head of review.There is some authority for the proposition that the courts employ a normative legal concept of "moral desert".