UK EV drivers with a medical cannabis prescription should be aware that while...

https://evpowered.co.uk/feature/electric-vehicles-and-medical-cannabis-what-uk-drivers-need-to-know-about-the-law/

UK EV drivers with a medical cannabis prescription should be aware that while parked and charging, they can still face risks under ‘in charge’ rules. The legal THC limit in blood is just 2 micrograms per litre