The landmark case with respect to the relevancy of privity of contract in torts is 

• The landmark case that deals with the relevancy of privity of contract in tort law is Donoghue v. Stevenson (1932). • This case established the modern principle of negligence and introduced the "neighbour principle", which holds that a manufacturer owes a duty of care to the ultimate consumer, even without a direct contractual relationship (privity of contract). • The House of Lords held that the defendant owed a duty to take reasonable care to avoid acts or omissions likely to injure a "neighbour," defined as persons closely and directly affected by one's actions. • This case marked a shift away from the strict doctrine of privity by recognizing tort liability independent of contractual relationships.