Prescribed medical cannabis is legal, but UK motoring laws are unforgiving....

https://judahxvdv180.bearsfanteamshop.com/driving-with-medical-cannabis-a-practical-guide-for-the-roadside

Prescribed medical cannabis is legal, but UK motoring laws are unforgiving. While a medical defence exists for the 2mcg/L THC limit, it isn’t a free pass