The Poison Handbook

*The Poison Handbook* explores how early 20th-century forensic toxicology developed through the work of toxicologists at the New York City Department of Hospitals. It details their methods for detecting poisons in approximately 1920s-era cases, illustrating how scientific analysis helped solve crimes and address causes of death from poisons like arsenic and lead. The book highlights the importance of chemistry and medical science in public health and criminal investigations, showing how these experts used emerging technology and careful examination to uncover hidden toxins, ultimately advancing forensic science and informing safety regulations.