Reading Assignment for Section 5.5

Read the following subsection from our online textbook: Section 5.5: Impression Evidence.

What You Will Learn

In this section, you’ll learn about the techniques for photographing, casting, and analyzing tire impressions, focusing on the precision required to capture details for accurate forensic analysis. You’ll explore the process of collecting and documenting two-dimensional footwear impressions, including the use of enhancement techniques to preserve evidence integrity. Additionally, you’ll outline the steps involved in casting impressions with dental stone and understand how these methods maintain the detail and accuracy of forensic evidence. Finally, you’ll identify the appropriate techniques for lifting footwear impressions from dust, and discuss the procedures for treating a vehicle as a crime scene, ensuring that the integrity of the vehicle and evidence is preserved throughout the investigation.

Student Learning Outcomes for Section 5.5

• SLO 1: Describe the methods for photographing, casting, and analyzing tire impressions, emphasizing the importance of precision in capturing details to ensure accurate forensic analysis.
• SLO 2: Explain the process of collecting and documenting two-dimensional footwear impressions, including the use of enhancement techniques and the importance of preserving the integrity of the evidence.
• SLO 3: Outline the steps involved in casting impressions, particularly with dental stone, and discuss how these techniques contribute to maintaining the detail and accuracy of forensic evidence.
• SLO 4: Identify the appropriate methods for lifting footwear impressions from dust using electrostatic and adhesive lifters, and discuss the considerations for selecting the best technique based on the type of impression.
• SLO 5: Summarize the procedures for treating a vehicle as a crime scene, including the importance of securing the perimeter, documenting evidence, and maintaining the integrity of the vehicle throughout the investigation and transport process.