After obtaining his post graduation in English literature, Shri. Khan Sahib underwent technical training in finger print science at the Central Finger Print Bureau, Kolkata, Finger Print Bureau, Chennai, C.M.C. Hyderabad and Finger Print Bureau, Thiruvananthapuram. A recognized expert of Finger Print Science, he has furnished expert opinion in several cases after inspecting scenes of crimes. Retired as District Officer, Finger Print Bureau (Kannur) of Kerala Police, Shri. Khan Sahib has several publications to his credit. He is a subject expert and Honorary Lecturer at the Judicial Academy, High Court of Kerala. Certified Member, National Association of Document Examiners, U.S.A. and Consultant Document Examiner and Hand Writing Expert. He is the only member representing India, in the list of Resource persons for NADE.