UK EV drivers using medical cannabis should know the ‘in charge’ rules apply...
https://www.pure-bookmark.win/uk-ev-drivers-prescribed-medical-cannabis-should-know-that-the-in-charge
UK EV drivers using medical cannabis should know the ‘in charge’ rules apply even when parked and charging. The legal THC limit is 2 micrograms per litre of blood, so a roadside swab can still lead to a blood test