UK EV drivers prescribed medical cannabis should know that the ‘in charge’...
https://evpowered.co.uk/feature/electric-vehicles-and-medical-cannabis-what-uk-drivers-need-to-know-about-the-law/
UK EV drivers prescribed medical cannabis should know that the ‘in charge’ rules mean they can be tested for THC while parked and charging. The legal limit is 2 micrograms per litre of blood