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

https://donovansmasterchat.novacrestiq.com/posts/why-does-the-medical-defence-only-get-looked-at-after-the-blood-test

UK EV drivers using medical cannabis should be aware of the ‘in charge’ rules that apply even when parked and charging. A strict 2 micrograms per litre THC limit means roadside swabs can trigger a mandatory blood test