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Footwear & Tire Analysis

This document explores the critical aspects of analyzing footwear and tire impressions, which retain characteristics from objects they contact. It details various collection methods for evidence, including 2-D techniques like photography and tape, as well as 3-D methods such as casting. The analysis focuses on essential features to evaluate, including tread patterns, width, depth, wear, and distinguishing markers of shoe prints and tire tracks. Understanding these elements is vital for forensic investigations to establish connections at crime scenes.

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Footwear & Tire Analysis

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  1. Footwear & Tire Analysis

  2. Impressions • Objects or materials that have retained characteristics of others through contact • Examples • Quality of impressions varies

  3. Collection Methods • 2-D Methods • Photography • Powder • Tape • Electrostatic • 3-D Methods • Casting • Some photography

  4. Tire Track Evidence • Situations where they may be found • Features to analyze • Tread Pattern • Width/Depth • Wear and Tear

  5. Shoe Print Evidence • Features to Analyze: • Type of Shoe • Wear Patterns • Defects • Tread Depth and Size • Other Trace Materials

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