A separate squad has been set up in US federal investigating agencies for this aspect of forensic research which play a vital role in leading to the culprit as he not immune from my commiting a blunder while carrying out his crime.
In real-life crimes, colour is one way that forensic scientists analyse soil from a crime scene or suspect. They can also check mineral composition, the density of the soil and its pollen content. The evidential value of soil stands on large variation in its characteristics.Soil has extreme complexity not only in components such as minerals, oxides, organic matter, micro organisms and their materials butalso physical nature such as particle sizes and densities. Considering the granite rock alone, for instance, there are an almost unlimited number of kinds. They are easily recognized according to difference of color, mineralogy, texture and a lot of other characteristics. Diversity of soil is the results of many kind of formations process on diverse kind of parent materials, which strongly depends on topography, climate, course of years, botanical and microbiological functions, conditions of watering, and even human activities.