Dr Natasa Radosavljevic-Stevanovic gained university and PhD degrees in chemistry. In 2005 she started work in the forensic science area first as an expert. Later she led the accreditation process (ISO 17025) of all forensic drugs laboratories in the country and a number of international projects aimed at increasing of capacities of forensic science area in the field physical-chemical and toxicological expertise. She has been the head of the Physical-Chemical and Toxicological Division in National Forensic Center of the Ministry of Interior in the Republic of Serbia from 2015. Her activities reach wider frames, as she is a research associate at the Chemistry Faculty of the University of Belgrade, a member of Commission on Psychoactive Substances of the Republic of Serbia and a member of the Accreditation Council in the Accreditation Body of Serbia. Since 2009, she has been a member of the ENFSI Drugs Working Group, its deputy chair since 2016 and from 2022 she holds position of the chair of ENFSI Drugs Working Group.