Mistake (contract law) void. Traditionally, Caveat Emptor (let the buyer beware), and under Common Law Caveat Venditor (let the seller beware). A contract might be voidable from unilateral mistake for any of the following: A mutual mistake occurs when the parties to a contract are both mistaken about the same "material" fact within their contract. They are at cross-purposes. There is a meeting of the minds, but the parties are mistaken. Hence the contract is voidable. "Collateral" mistakes will not afford the right of rescission. A collateral mistake is one that 'does not go to the heart' of the contract. For a mutual
Paulette Caveat signatories did not believe that Treaty No. 8 and No. 11 extinguished their Aboriginal rights to the land and that the Treaties were unfulfilled. Justice Morrow agreed with these witnesses and ruled that the Chiefs had established a case for claiming Aboriginal rights sufficiently to warrant the filing of a caveat. Although the ability to register the caveat was overturned by the Supreme Court of Canada, Justice Morrow's findings in respect to Aboriginal rights were not overturned. The "Paulette" case resulted in the initiation of the Dene/Metis comprehensive land claim process. The "Paulette" and "Calder" cases prompted the Government of