In 2018, UK cannabis laws saw a specific update to the Misuse of Drugs...

https://bizzmarkblog.com/is-cannabis-decriminalised-anywhere-in-the-uk/

In 2018, UK cannabis laws saw a specific update to the Misuse of Drugs Regulations 2001—not the 1971 Act—allowing specialist doctors to prescribe cannabis-based medicines classified as Schedule 2 substances