The document provides a history of the development of forensic science in India. It discusses how forensic science originated in the 19th century and developed in three periods, with the application of various sciences like chemistry, physics, and biology. It also outlines the roles and functions of forensic scientists, which includes collecting and analyzing evidence like blood, fluids, hair to help solve crimes. More recently, forensic science has benefited from new technologies like laser scanners and drones to better collect and analyze evidence. The scope of forensic science has expanded in India with new universities and acts passed to support education and research in this field.