UK EV drivers using medical cannabis should be aware of the ‘in charge’ rules...

https://bizzmarkblog.com/what-if-i-am-charging-at-home-on-my-driveway-does-in-charge-apply/

UK EV drivers using medical cannabis should be aware of the ‘in charge’ rules that apply when parked and charging. Even with a prescription, the legal THC limit of 2 micrograms per litre of blood applies