Section 80 Indian Penal Code
Section 80 of the Indian Penal Code 1860 is about Accident in doing a lawful act. It is under CHAPTER IV (GENERAL EXCEPTIONS) of the Code.
Accident in doing a lawful act
Nothing is an offence which is done by accident or misfortune, and without any criminal intention or knowledge in the doing of a lawful act in a lawful manner by lawful means and with proper care and caution.
A is at work with a hatchet; the head flies off and kills a man who is standing by. Here, if there was no want of proper caution on the part of A, his act is excusable and not an offence.