purpose to escape liability to pay damagers for a breach of contract
exclusion clauses: avoiding liability altogether
liability clauses: limit liability to a certain amount
3 to prove:
clause must be incorporated in contract
wording of exclusion clauses must cover what has happened
clause must be allowed within statue law
protection given to businesses: George Mitchell V Finney Lock seeds- farmer lost £60,000 due to seed companys negligence £200 was not enough compensation for the farmer who had done nothing wrong