Popis: |
This chapter discusses the surfaces of shoes and tires. Shoes and tires bear the repeatable features resulting from design specifications or molds that put them into certain categories. Unique features will be detectable on the newly finished tread if they are examined closely enough. Among the elements of the tire tread are tie bars, sipes, and wear bars. Tie bars hold the elements together below the original surface of the elements. Sipes are small slots or voids in elements. Wear bars become flush with the tread elements as the tread wears significantly. It is observed that if the features of the shoe had been sufficiently recorded in a substrate at a scene, and the features of a shoe are sufficiently recorded in a standard substrate, a shoe print examination can be conducted. The significance of the conclusion relies on the sufficiency of details of the persistent unique and persistent repeatable features of the sole and the ability of the substrates to capture sufficient details of the sole. The sufficiency and persistency of the repeatable and unique features must be considered when determining judgment. It is suggested that the determinations of agreement and disagreement rest upon the quality and quantity of three levels of details of the persistent repeatable features and the quality and quantity of three levels of details of the persistent unique features of the source as recorded in the substrates. |