Footwear Analysis Theory

Decent Essays
John Zarka
Mr. Kirby
Forensic Science
March 22, 2016
Shoe Print The basic theory behind footwear analysis is that, much like fingerprints, shoes may leave behind either prints (referred to as "imprints") or impressions that can be examined by investigators. The type of evidence left behind depends largely on the type of surface traveled. For example, a shoe will leave an impression in loose sand, but on a hard surface like concrete or linoleum, it will leave an imprint. These imprints or impressions can be compared to a suspect's shoe to determine if the shoe is the same one that left the impression.

Shoe prints can be matched to a pair of shoes in a suspect's possession. Shoeprints can sometimes tell investigators what type of shoes to look for when searching a suspect's residence. Before any attempt is made at collecting shoeprints, one-to-one photographs should be made using a tripod, ruler, and level. The flash should be held at about 45
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Prosecutor Patrick Bourke had told the jury a shoe print had been left behind at the murder scene. A long sharp weapon had inflicted at least 40 cuts to his head, and his brain had been removed. When Wu was later arrested, police found a shoebox for a pair of size 7 Prada shoes at his home just outside the garage. "Inquiries were made with Prada Australia about the style of shoe that correlates with the shoebox that had been located," Mr Bourke said."A sample pair of such shoes that corresponded to the shoebox were provided to the police."Mr Bourke said a witness, Nu Chen, told police he and Wu had the same pair of Prada shoes. Test impressions made of the Prada shoes had similarities to the shoe print left at the crime scene."There will also be some evidence that the shoe size of the accused man fits within the parameters of the shoe impression at the crime scene," Mr Bourke

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