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

https://isabellasbestperspectives.quillnesty.com/posts/can-i-be-in-charge-if-i-am-outside-the-car-but-holding-the-keys

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