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

https://evpowered.co.uk/feature/medical-cannabis-and-uk-driving-laws-what-ev-owners-must-know/

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.