Towards the Validation of an Observational Tool to Detect Impaired Drivers—An Online Video Study Posted on July 8, 2022July 8, 2022 By sdargoltz Tanja Baertsch, Marino Menozzi and Signe Maria Ghelfi Int J Environ Res. Public Health; 19(12); 2022 Access article Cannabis and Cannabinoids, Chemistry, Crime Scene Investigation and Reconstruction, DREs / Traffic Safety Resource Prosecutors, Seized Drugs/Controlled Substances, Toxicology