Analyzing Time of Death On shows such as C.S.I the forensic investigator often asks. police or crime TV What is the TOD?" This refers to the time of death or the exact moment when a died. Temperature is an important indicator telling investigators when a person person died. organs that respond most quickly to changes in body temperature are the liver and the brain, and it's due to their mass and density. By analyzing these organs a coroner can tell the ToD. After death. a person's body temperature