| Hans-Günter Meyer-Thompson | Cannabis als Rauschmittel
How long does cannabis impairment last? Researchers are starting to find out
How long does cannabis impairment last? Researchers are starting to find out
If rules about cannabis consumption for Canadian police are any measure, we know precious little about how long cannabis impairment lasts. The wait time for police to show up for work after consumption ranges anywhere from the next day to 28 days, with some forces prohibiting members from using the drug altogether.
University of Alberta psychiatrist Scot Purdon agrees the science is scant on impairment beyond the first few hours. (medicalxpress.com, USA, 18.10.2018)
https://medicalxpress.com/news/2018-10-cannabis-impairment.html