Driving on medical cannabis? Being legal doesn’t mean you’re exempt from the...

https://www.emergbook.win/prescribed-cannabis-doesn-t-grant-immunity-the-2mcg-l-limit-remains-and-a

Driving on medical cannabis? Being legal doesn’t mean you’re exempt from the 2mcg/L THC limit. While a medical defence exists, you must notify the DVLA regarding your fitness to drive