Medical cannabis users face a complex landscape. While a medical defence exists...

https://evpowered.co.uk/feature/medical-cannabis-and-uk-driving-laws-what-ev-owners-must-know/

Medical cannabis users face a complex landscape. While a medical defence exists for the 2μg/L THC limit, you must meet DVLA fitness-to-drive standards. Legality isn’t a free pass; impairment remains your responsibility. We explain the vital legal facts.