in europe. it is based on the premise of modifying the structure of illicit drugs to evade international control measures. by early 2021, emcdda has monitored 30 designer benzodiazepines through the ews. however, not much information is available regarding the market size of new benzodiazepines. seizures reports from police and customs authorities have shown that new benzodiazepine is not of great interest compared to other nps groups. in 2019, 4% of police seizures is attributed to benzodiazepines.