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

https://victor-wiki.win/index.php/Is_It_Illegal_to_Smoke_Prescribed_Medical_Cannabis_in_the_UK%3F

UK EV drivers using medical cannabis should know that the ‘in charge’ rules apply even when parked and charging. Despite having a prescription, the 2 micrograms per litre THC limit still stands