This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
Casper's Dictum is used for: 
Select and explain. 
A. Identification of Body, B. Estimation of time since death, C. Establishing cause of death, D. Establishing weapon of Injury
B: Estimation of time since death
Answer: B: Estimation of time since death 
Explanation: Casper's dictum relates to the rate of putrefaction of a dead body and helps to estimate the time since death. Ref: Textbook of Forensic Medicine and Toxicology By Nagesh Kumar Rao, 1999, Page 132; The Essentials of Forensic Medicine and Toxicology By Dr K S Narayan Reddy, 27th Edition, Page 150