This document discusses the legal liabilities and risks associated with poor quality information. It outlines sources of liability under legislation like data protection acts as well as common law through case precedents. Two relevant torts are discussed - negligence and defamation. Negligence requires a duty of care, breach of duty, loss or damage, and a causal link. This is exemplified in the Hedley Byrne case where a bank provided an inaccurate credit reference. Defamation involves publishing a false statement about a person that lowers their reputation. Defenses to defamation include justification, fair comment, and privilege.