UK EV drivers using medical cannabis should note the ‘in charge’ rules mean you...

https://super-wiki.win/index.php/Why_Does_the_Medical_Defence_Only_Get_Looked_at_After_the_Blood_Test%3F

UK EV drivers using medical cannabis should note the ‘in charge’ rules mean you can be tested even while parked and charging. The legal THC limit is 2 micrograms per litre of breath