UK EV drivers using prescribed medical cannabis should be aware of 'in charge'...

https://www.emergbook.win/uk-ev-drivers-prescribed-medical-cannabis-need-to-be-aware-of-in-charge-rules

UK EV drivers using prescribed medical cannabis should be aware of 'in charge' rules that apply while parked and charging. The legal THC limit is very low, just 2 micrograms per litre of blood