This book offers the reader a view of the science behind crime scene investigations. It demonstrates the connection between forensic science and the natural sciences, especially physics. Because forensic scientists need to have a basic knowledge of natural sciences, the text details the basic physics needed to understand the findings of the crime scene. It also presents examples of research outcomes provided in the context of trasology trace analysis, and will appeal to forensic science and criminology students, as well as high school learners and the general reader interested in forensics.