Marek Wiergowski is an assistant professor at the Department of Forensic Medicine at the Medical University of Gdańsk. He has been working at the Forensic Toxicology Laboratory at the Department of Forensic Medicine of the Medical University of Gdańsk since 1999. He completed a 2-year postdoctoral fellowship at the European Commission Joint Research Centre–Institute for Reference Materials and Measurements in Geel (Belgium). He completed a specialization course in medical and forensic toxicology. He was appointed a technical expert of the Polish Accreditation Centre. He has published many research papers: 75 peer-reviewed original articles and 10 book chapters. His particular research interests are in the forensic and analytical toxicology, especially in differential diagnosis of lethal intoxications (suicide, homicide or accident) and toxicology of ethyl alcohol. He is also the member of the International Association of Forensic Toxicologists (TIAFT) and the Polish Society of Forensic Medicine and Criminology.