Livor Mortis and Lividity are one in the same, they are the collection of coagulated blood in an area. Livor mortis can help coroners or forensics specialist estimate ho…w long an individual has been dead based on how far along or how much lividity there is. It can also tell a coroner or forensics specialist if a person has been moved, for example if someone had died on their back lividity should be present on the back, this is because of gravity, so if they find a dead body face down but lividity is present on the back it is apparent the body has been moved. (MORE)