The question whether the doctrine of promissory
estoppel has a place in Australian law has heen set at rest by
the recent decision in the High Court of Australia in Legione v
Hateley (1983)57 ALJR 292. In their joint judgement in that
case Mason and Deane JJ, at pp 303-304, referred to the elements
necessary to support a promissory estoppel. They found it
unnecessary to say whether a pre-existing contractual
relationship was necessary. (cf. Meagher, Gummow and Lehane, op
cit para 1706 where 1t 1s suggested that a subsisting legal
relationship, whether under contract or arising from statute or a
fiduciary obligation is necessary.) In the present case there
was, at 29 June 1981, a pre-existing contractual relationship
between Mr Ward and the respondent as trustee of the Beauty Point
Trust so that this element, if 1t be necessary, 13 satisifed.
Mason and Deane JJ held that a representation must be clear and
unambiguous in order to find an ettcppel in pais, including a
promissory estoppel. This requirement 1s satisfied in the present
case, Finally, their Honours said that a person will not be
estopped from departing from an assumption or a representation
unless, as a result of adopting it as the basis of action or
inaction, the other party will have placed himseif in a position
of material disadvantage if departure from the assumption be
permitted. In my view this element is satisfied in the present
case. The respondent did act on the representation by the
creditor that he had gifted to the trustee the sum of $180,000,