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

https://zionsniceinsight.readspirex.com/posts/what-are-the-penalties-for-being-over-the-thc-limit-in-the-uk

UK EV drivers using medical cannabis should be aware of the ‘in charge’ rules that apply when parked and charging. Even with a prescription, the legal THC limit of 2 micrograms per litre of blood applies