UK EV drivers using medical cannabis should be aware of the “in charge” rules...
https://delta-wiki.win/index.php/Is_It_Risky_to_Dose_During_a_Motorway_Services_Charging_Stop%3F
UK EV drivers using medical cannabis should be aware of the “in charge” rules that apply even when parked and charging. The law sets a strict 2 micrograms per litre THC limit for driving