UK cannabis law changed in 2018 when the Misuse of Drugs Regulations 2001 were...

https://codysimpressiveperspectives.hexaforgey.com/posts/who-decides-uk-drug-classification-acmd-or-home-secretary

UK cannabis law changed in 2018 when the Misuse of Drugs Regulations 2001 were updated to allow specialist doctors to prescribe cannabis-based medicines