I am trying to obtain a certified copy of an adoption/custody ruling that was made in a UK county court in 1971. The ruling concerns my sibling and it is on their behalf that I am trying to obtain it as they are no longer resident in the UK. I know which court it was and I have the dates of the case.
I really have no idea how to go about this or whether it's even possible. Should I contact the court concerned directly, the National Archives or something else?
Any pointers or advice gratefully received.