In 2018, UK cannabis law changed through the Misuse of Drugs Regulations 2001,...
https://wiki-book.win/index.php/Why_Does_UK_Medical_Cannabis_Rely_on_Private_Clinics_So_Much%3F
In 2018, UK cannabis law changed through the Misuse of Drugs Regulations 2001, not the Misuse of Drugs Act 1971