Acceptance and consideration

EFFECTS OF ESTOPPEL
The Doctrine of Promissory estoppelestoppel is a modification of the Common
Law rule of consideration in that it enables a person who has not provided consideration to a promise to enforce it if he has relied upon it and changed his legal position.
It is argued that the principal weakness of the Doctrine of Promissory Estoppel is that it is defensive and not offensive. It can only be relied upon by the
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defendant as a defence. However, the so called Doctrine of Proprietary Estoppel which is based on ownership can be used both as a shield and as a sword.
Courts however have observed that there is no distinction between promissory and proprietary estoppel.
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