This document discusses the differences between justification and excuses as defenses in criminal law under the Indian Penal Code. It provides definitions of justification and excuse, noting that justification means showing a good legal reason for an act, while excuse means an alleged reason for an act. It outlines four key distinctions between justification and excuse: 1) Justification defenses apply universally while excuses are personal, 2) Justification involves balancing interests while excuses do not, 3) Justification derives from norms directing the public while excuses derive from norms assessing accountability, 4) Justification focuses on the act while excuses focus on the actor. The document then discusses mistakes, necessity, and accidents as defenses under sections 76, 79, 80, and 81 of the Indian Pen