Medicated cannabis users must understand: a prescription isn't a blanket legal...

https://atavi.com/share/xt53v2z1mxrjq

Medicated cannabis users must understand: a prescription isn't a blanket legal shield. While a medical defence exists for the 2mcg/L limit, you must declare conditions to the DVLA. Legality doesn't override your duty: if you're impaired, don't drive.