Driving with medical cannabis needs more than paperwork. While a medical...

https://meet-wiki.win/index.php/Medical_Cannabis_and_Driving:_Your_DVLA_Responsibilities_and_the_Law

Driving with medical cannabis needs more than paperwork. While a medical defence covers the 2mcg/L THC limit, you must still meet DVLA fitness standards. Being legal isn't being safe; your responsibility remains