Modi A Textbook of Medical Jurisprudence and Toxicology, first published in 1920 by Dr Jaising P Modi, has been unrivalled in the Indian medico-legal landscape. For a century, it has stood as the standard reference for doctors, lawyers, judges, police officers, and forensic scientists alike. Its pages bear witness to the evolving intersection of medicine and law in India?an intersection that grows ever more complex as new technologies redefine investigation, adjudication, and medical practice. Over successive editions, this textbook has expanded from being a compendium of medical jurisprudence and toxicology into a comprehensive synthesis of medical law, forensic medicine, and toxicology, contextualized for both academic and professional needs. The fact that it remains the primary reference even after a hundred years speaks to its scholarly foundation, practical utility, and ability to adapt to change.