Medicolegal death investigation is a complex, multidisciplinary process that integrates science, law, and ethics. It is designed to provide answers in cases of unexplained, violent, or suspicious deaths and serves multiple societal functions, including the administration of justice, protection of public health, and assurance of accurate mortality data. As forensic science continues to advance, the field of medicolegal investigation evolves, adopting new technologies and methodologies that enhance the accuracy and reliability of findings. The process not only upholds the rights of the living but also honours the dignity of the deceased by seeking the truth behind every untimely death. The book on Medicolegal Death Investigation: A Practical Guide provides a comprehensive and insightful exploration into the multidisciplinary process of investigating deaths that fall under legal or suspicious circumstances. Rooted in both forensic science and legal medicine, the book serves as a valuable resource for students, medical professionals, law enforcement officers, forensic scientists, and legal practitioners. It outlines the systematic procedures involved in determining the cause, manner, and circumstances of death, emphasizing the importance of scientific accuracy, legal adherence, and ethical responsibility throughout every stage of the investigation. The book delves into the protocols followed at the scene of death, highlighting how forensic investigators document, analyze, and collect evidence that contributes to the eventual conclusions about how a person died. It examines the role of autopsies in identifying internal injuries, disease processes, or toxic substances and explains how these findings are crucial for confirming or contesting preliminary suspicions. Detailed chapters cover the significance of toxicology, forensic pathology, anthropology, odontology, and DNA analysis in solving complex cases. The process of determining both the cause and the manner of death whether natural, accidental, suicidal, homicidal, or undetermined is thoroughly discussed, with real-world examples and case studies that help readers understand the practical applications of theoretical knowledge.