All of the chemical enhancement reagents used within this experiment provided great results on at least one of the substrates used. A pair of dark blue denim jeans, plain white pieces of A4 paper and wooden laminate flooring were the substrates used for the blood-stained impressions to be deposited on. The enhancement chemicals used in this study were used successfully via spray bottles to enhance the blood-stained impressions deposited on the different substrates. This study investigates the chemical enhancement performance of several enhancing chemicals Amido black, leuco crystal violet and luminol were used to enhance several blood-stained footwear impressions on multiple different substrates which varied in colour and porosity. Forensic barefoot morphology involves the comparison of the weight-bearing areas of the bottom of a barefoot without such ridge detail, as in a fingerprint, to establish a link between the barefoot of an individual and an impression found in mud, blood, or some other medium at the crime scene or on the insole of a shoe that may have been linked to a crime scene. Print size analyses also suggest that these individuals lived and moved in cooperative multi-male groups, offering direct evidence consistent with human-like social behaviors in individuals. These footprints also provide the oldest direct evidence for modern human-like weight transfer and confirm the presence of an energy-saving longitudinally arched foot in humans. Foot impressions are still found at crime scenes, since offenders often tend to remove their footwear either to avoid noise or to gain a better grip in climbing walls, etc., while entering or exiting. Analysis of footprints and foot length alsohelps in estimation of an individual's stature because of the existence of the strong correlation between footprint and height. ![]() ![]() Footprint is one piece of valuable physical evidence encountered at crime scenes and its identification can facilitate narrowing down the suspects and establishing the identity of the criminals.
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