Forensic Science is an interdisciplinary subject that uses principles and methodologies of various subjects including chemistry, biology, physics, geology, psychology, social science and engineering to help law enforcement agencies to enforce criminal laws and regulations to resolve civil and criminal cases. Body fluids, fingerprints, footprints, illicit drugs, explosives etc. are the evidences that can be found at the scene of crime in trace amount. Generally, scientists discuss new-fangled nanotechnology research and its conversation turns to the commercial aspects or potential issues...