The Uniform Sales Act did not displace contract law. English contract law is the body of law that regulates legally binding agreements in England and Wales.This module aims to develop a knowledge and understanding of the English law of contract and the techniques of common law legal reasoning. Consideration is not required in Scotland where donation is accepted in the law of contract. Please fill out this field. It is immaterial whether the undertaking is in the form of a contract. 1) When an exculpatory clause in a contract contravenes established common-law rules of liability, it may be held unenforceable as contrary to public policy.