This document discusses the history and development of the legal doctrine of contributory negligence. It began under common law as a complete defense if the plaintiff contributed to their own injury. Later rules like the last opportunity rule and ability for courts to apportion liability between negligent parties developed to avoid the harshness of this. The Law Reform (Contributory Negligence) Act 1945 gave courts power to apportion liability. Malaysian law followed similar developments, initially following the last opportunity rule but now allowing reduction of damages under section 12(1) of the Civil Law Act 1956 if fault is partly the plaintiff's.