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

https://yenkee-wiki.win/index.php/Can_I_Be_Charged_If_I%E2%80%99m_in_a_Public_Car_Park_and_Not_on_the_Road%3F

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