UK EV drivers using medical cannabis should know that ‘in charge’ rules apply...

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

UK EV drivers using medical cannabis should know that ‘in charge’ rules apply even when parked and charging. The legal THC limit is 2 micrograms per litre of blood. A roadside swab may lead to a blood test at a station, regardless of your prescription