Original: The historic boundaries were used for parliamentary purposes until 1832, and for judicial and local government purposes until the coming into force of the Counties (Detached Parts) Act 1844, which merged most remaining exclaves with their surrounding county.
Simplified: The historic boundaries were used for parliamentary purposes until 1832, and for law courts and local government until the Counties (Detached Parts) Act 1844, which merged most remaining exclaves with their surrounding county.