If you’re a medical cannabis patient, being 'legal' isn't a free pass. Even...

https://www.bright-bookmarks.win/medical-cannabis-is-legal-but-road-safety-rules-apply-keep-under-the-2-g-l

If you’re a medical cannabis patient, being 'legal' isn't a free pass. Even with a medical defence, you must meet DVLA standards and stay under the 2mcg/L THC limit. Legality doesn't replace personal responsibility; if you’re impaired, don't drive.