Dr. H.K Pratihari completed his Ph.D. in Chemistry from Utkal University. He started his career as a forenisc scientist in the state FSL, Odhisa. He joined as founder Director state FSL, Imphal, Manipur in the year 1992. Dr Pratihari was selected to undergo overseas training under United Nations International Drug Control Programme (UNDCP). He is the recipient of the Home Ministry award, MHA, GoI in 1997 for his valuable contribution in th efield of forensic chemical science. Dr Pratihari got the lifetime contribution award in 2012 by the Indian Academy of Forensic Sciences and Health Ultimate Research Organization. He joined as founder Director in the sate FSL, Agartala in 2001 to organize and establish a model laboratory in the state and continuing the same. He is one of the senior most forensic scientist in India. He has the credit of publishing number of research papers in reputed journals. He has recently published a book on forensic evidence & investigation methods.