It is not illegal, as I said before, provided it is done by a vet and before the pup is about a week old.
The Animal Welfare Bill is going before the House of Commons on 6th November for further consideration and if passed with the amendments proposed by the House of Lords, docking will be made illegal other than for working breeds.
How many docked breeds do you see around that are in any way suffering? Rotts, Dobes, Boxers, Springers, Yorkies, etc. etc. - how many of these do you see in good health and living a normal happy life? If docking was so bad, surely they would all be miserable and in constant pain?