1. Legal Medicine University Hospital of Padova Padova Italy
2. Office of Chief Medical Examiner New York USA
3. Cansford Laboratories Cardiff UK
4. University Centre of Legal Medicine, Forensic Toxicology and Chemistry Unit Lausanne‐Geneva Switzerland
5. Labor Krone Bad Salzuflen Germany
6. Human Biomonitoring Research Unit (HBRU) ‐ Luxembourg Institute of Health Luxembourg
7. Center for Forensic Hair Analytics, Zurich Institute of Forensic Medicine University of Zurich Switzerland
8. Laboratoire ChemTox Strasbourg France
9. National Board of Forensic Medicine Linkoping Sweden
10. Laboratory of Toxicology National Institute of Criminalistics and Criminology Brussels Belgium
11. Department of Health Surveillance and Bioethics Policlinico Genlli IRCCS Rome Italy
12. Formerly Forensic Laboratory of the Bavarian State Criminal Police Office Munich Germany
13. Dipartimento di Chimica Analitica Università degli Studi di Torino Torino Italy
14. Laboratoire National de Santé Service de Toxicologie médico‐légale Dudelange Luxembourg