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

https://atomic-wiki.win/index.php/Should_I_Refuse_a_Roadside_Drug_Test_if_I_Have_a_Prescription%3F

UK EV drivers using medical cannabis should be aware that ‘in charge’ rules apply even when their vehicle is parked and charging. The legal THC limit is just 2 micrograms per litre of breath, making it easy to test over the limit