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

https://dlf-ne.org/whats-the-simplest-driving-pack-for-medical-cannabis-patients/

UK EV drivers using medical cannabis should be aware that ‘in charge’ rules mean they can face roadside drug tests even while parked and charging. The legal THC limit is very low—just 2 micrograms per litre of blood