UK EV drivers using medical cannabis should be aware that ‘in charge’ rules...
https://www.bookmarking-maze.win/uk-ev-drivers-using-medical-cannabis-should-know-the-in-charge-rules-apply
UK EV drivers using medical cannabis should be aware that ‘in charge’ rules apply even when parked and charging. The legal THC limit is 2 micrograms per litre of blood