UK EV drivers using medical cannabis should be aware that the ‘in charge’ rules...

https://list-wiki.win/index.php/Can_I_Drive_if_My_Prescriber_Never_Talked_About_Driving_at_All%3F

UK EV drivers using medical cannabis should be aware that the ‘in charge’ rules mean you can be tested even while parked and charging. The legal THC limit is just 2 micrograms per litre of blood