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Footprints And Footwear: Undervalued At A Crime Scene

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Footprints and Footwear are commonly undervalued at a crime scene due to lack of education or training of the investigator. The value from this type of evidence is actually invaluable and should not be over looked at the scene. Every criminal must enter and leave the scene which means that a print or impression will be left behind at the scene. Footprints and Footwear can actually give a massive amount of information of the suspect. The details that can arise from either piece preserved could be used to tie a suspect to the crime for a later conviction. Investigators must remember that every footprint, partial or full, has potential to provide information about the person, who left it at the crime scene such as, size, weight, stature, …show more content…

Casting will actually back up the photographs taken prior to collecting the evidence, providing a three dimensional impression by using dental stone. Dental Stone will cast the impression in the physical shape and size that cannot be captured in the photograph. A majority of investigators prepare bags of dental stone to shorten the mixing process on the crime scene. When pre-made the investigator will only have to add water and mix, which is usually two pounds of dental stone to two cups of water. Physically mix manually with fingers until the mixture reaches pancake batter consistency in the resalable bag. Pour the mixture using a wooden stick to angle the dental stone into the impression by allowing it to slide into the print, not directly on it. Wait approximately 20-30 minutes, depending on weather conditions, to permit the mixture to harden. After it hardens, carefully lift the casting being careful not to break or crack the mold. Do not scrape off dirt or debris from cast for at least twenty-four hours and photograph casting when lifted. Document, mark and preserve the casting to send to the laboratory for further

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