The best witness for post-mortem changes to determine time of death is what?

• A. Video evidence and/or eye witnesses
• B. Autopsy findings
• C. Forensic toxicology
• D. Weather data

Answer: (A)

Time of death is most reliably fixed by direct temporal information from someone who witnessed the scene. Video footage or an eyewitness account can pinpoint when the person was alive or last seen, or when the body was discovered within a known window, giving a precise reference point that postmortem changes alone cannot match.

Autopsy findings and postmortem changes (like rigor, livor, or algor mortis) can narrow the window but are influenced by many factors such as temperature, clothing, activity, and environment, so they provide an estimate rather than an exact moment. Forensic toxicology reveals substances that might affect death but doesn’t establish when death occurred. Weather data helps interpret rates of change but isn’t a direct witness to the timing.

So, the most specific temporal information comes from video evidence or eyewitnesses.