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The Margaethe Filbert Case |
| In this case a woman, Margaethe Filbert, had been murdered near Rockenhausen, Bavaria and the district attorney was seeking information about some evidence. Popp investigated the geological aspects of the case and found that the ground around the suspects home was covered with green goose droppings; the suspects farm fields contained soil containing fragments of porphyry, milky quartz, and mica; and the crime scene contained soil with angular red quartz and red iron-rich clay. The suspect's shoes had a layer of green goose droppings covered with grains of quartz and red clay. Even though the suspect claimed to have been in his fields at the time of the crime, there was no evidence of porphyry fragments, milky quartz or mica. (Murray and Tedrow, 1991, p.8) |