Time elapsed since death is an important content of the post-mortem report. Although various researchers have been trying to solve this puzzle since long time but pointing exact time of death has not been possible yet. The only thing which the researchers can achieve is to give opinions in narrow range. In this book the author has reviewed various information extensively, combined them with own research and concise them to provide easy solution to question in order to further narrow down the opinion. This book will act as a hands on tool for doctors, researchers, various law enforcement agencies, judiciary etc in understanding of time elapsed since death.