If you’re an EV driver prescribed medical cannabis, don’t assume legality...

https://holdenajvs101.yousher.com/can-my-licence-be-invalidated-if-i-hide-medical-information-from-dvla

If you’re an EV driver prescribed medical cannabis, don’t assume legality implies immunity. The 2μg/L THC limit still applies. While a medical defence exists, you must report your status to the DVLA