UK EV drivers using prescribed medical cannabis should be aware of 'in charge'...

https://daltonsnewdigests.talesignal.com/posts/does-the-statutory-defence-stop-the-police-arresting-me

UK EV drivers using prescribed medical cannabis should be aware of 'in charge' rules that apply while parked and charging. The legal THC limit is very low, just 2 micrograms per litre of blood