“…These papers have generally all provided the results of experimental studies (using both laser granulometry and sieving techniques) and have demonstrated, in the first instance, that it is possible to distinguish between soil and sediment samples taken from distinct geological areas. It is particularly interesting to note that when 'simple transfers' of soil from a source area onto an item of footwear are simulated under laboratory conditions, it has been discovered that both the particle size distribution of the source soil and the type of footwear can significantly affect the particle size distribution of the transferred soil sample subsequently taken from the shoe ( [13] and [14]). Chazottes et al [13] showed that if a source soil sample has a unimodal particle size distribution of siltsized particles, the particle size distribution of the transferred soil sample, taken from the footwear, was more similar to the particle size distribution of the source soil sample.…”