Legality isn’t an excuse for impairment. If you drive with medical cannabis,...

https://www.cast-bookmarks.win/medical-cannabis-is-legal-but-driving-remains-a-minefield-with-a-2mg-l-thc

Legality isn’t an excuse for impairment. If you drive with medical cannabis, you must meet DVLA fitness standards and stay under the 2mcg/L THC limit. A medical defence helps, but your primary duty is ensuring you are fully safe behind the wheel.