UK EV drivers using medical cannabis should be aware of the ‘in charge’ rules...
https://wiki-club.win/index.php/Can_I_Keep_the_Keys_in_the_Glovebox_to_Reduce_%E2%80%98In_Charge%E2%80%99_Risk%3F
UK EV drivers using medical cannabis should be aware of the ‘in charge’ rules that apply while parked and charging. Even with a prescription, the 2 micrograms per litre THC limit means a roadside swab could prompt a mandatory blood test