Chat with us, powered by LiveChat Studies have indicated that there are 4 critical factors–which are directly related to medical observations and analysis–that come into play during a deat - Writeden

Studies have indicated that there are 4 critical factors–which are directly related to medical observations and analysis–that come into play during a death investigation. If any of the 4 cannot be determined, the chances of ever solving the crime are decreased dramatically. 
What are those factors?
Why are they important?