8Who is allowed access to a crime scene? What happens when a body is discovered? Will a blood transfusion alter DNA? How can the distribution of gunshot residue inform your plot? This book answers these questions and more in a unique and exclusive insight into crime scene investigation. Using real-life examples and case studies, experienced CSI Kate Bendelow shines a light behind the yellow tape and debunks the myths popularized by the "CSI Effect." Each chapter explores the latest procedures in contemporary practice including: crime scene access and preservation; fingerprints and DNA profiling; footwear; trace evidence; fire scenes; drugs and toxicology; and, finally, firearms. Packed with insider knowledge, handy tips, and compelling storylines, this is the definitive guide for all crime writers who wish to write with authenticity and authority.