Using medical cannabis? You’re still bound by the 2mcg/L THC limit and DVLA...

https://www.4shared.com/office/4hExEGiDku/pdf-94952-99400.html

Using medical cannabis? You’re still bound by the 2mcg/L THC limit and DVLA rules. A medical defence exists, but it’s not a blank cheque. Legality doesn’t replace your duty to stay fit to drive