Medical cannabis users must be careful. While a defence exists for the 2µg/L...

https://wiki-dale.win/index.php/Adaptive_Cruise_Control_Made_Me_Complacent_%E2%80%93_Is_That_a_Problem_with_Meds%3F

Medical cannabis users must be careful. While a defence exists for the 2µg/L THC limit, you must still meet DVLA fitness standards. Legality isn't a safety pass: if your prescription impairs you, don’t drive