c geology�the science of tracing muddy footprints, finding buried bodies, and exposing gem and mineral fraud�is now even better. With more than fifteen new case studies and several new forensic techniques, Evidence from the Earth Second Edition, details how modern-day Sherlock Holmes�s can solve crimes using soils, rocks, and other earth materials. Along the way readers will learn about the history of forensic geology; types of rocks, soils, gemstones, and related man-made materials; how geologic evidence can place a suspect at the scene of a crime; techniques used to detect mine, gem, and art fraud; specialized equipment for geoforensic investigations; and how geologic evidence is used in court.