Medical cannabis offers a statutory defence for the 2mcg/L THC limit, but it's...

https://super-wiki.win/index.php/Can_I_Drive_My_EV_the_Same_Day_I_Start_Prescribed_Cannabis%3F_The_Reality_of_Roadside_Law

Medical cannabis offers a statutory defence for the 2mcg/L THC limit, but it's not a free pass. DVLA fitness-to-drive rules still apply. Legality doesn't replace responsibility; if you’re impaired, you’re liable. Avoid the insurance headache.