A defective product claim in negligence stands or falls on the same four elements as any other negligence action, but each takes on a distinctive shape here. This chapter starts with the basis of the claim and the three categories of defect, then maps who owes a duty — from manufacturers to retailers and own-brand suppliers — including the duty to act once a dangerous defect comes to light. It moves through how breach is assessed, the role of warnings and industry standards, and how the possibility of intermediate examination can affect liability. It finishes with causation in failure-to-warn cases, remoteness, the line between recoverable damage and pure economic loss, and the defences and limitation rules that can defeat an otherwise sound claim.
