Medical cannabis users must stay alert. While a medical defence exists for the...

https://www.acid-bookmarks.win/using-medical-cannabis-the-2-g-l-thc-limit-is-a-minefield-while-a-medical

Medical cannabis users must stay alert. While a medical defence exists for the 2mcg/L THC limit, you must notify the DVLA of your status. Being legal doesn't bypass fitness-to-drive rules