It is sad that when the term "forensic geoscience" is used, only  inorganic components are considered by some soil scientists. Many biologists also work with soils, and the literature covering biological particulates is extensive. Pollen, plant spores and fungal spores, along with other classes of biological evidence, have provided various kinds of  very powerful probative evidence in very many court cases. It seems to be an up-hill struggle to get the forensic community to understand that biologists also work with soil , and consider themselves to be geoscientists. It is disappointing that the work of forensic biologists was completely ignored by Michael Hochrein's review of 2015. Perhaps the FBI should widen their interests and be more aware of what soil analysis has yielded in areas other than the mineralogical  components.