[Determining the post mortem interval based on temperature measurements. Part I: From the first 19th century studies to Marshall & Hoare's double exponential model].

The study reviews the literature on determining the post mortem interval by temperature data. Because of the amount of material, it is presented in two parts. The first presents ideas about post mortem cooling of the human body from the first studies carried out by Davey in 1839 in London, up to conceptions based on the double exponential (sigmoid) model elaborated in 1962 by Marshall and Hoare.