Tail docking has been illegal since 2007
In brief, the Act makes it an offence to remove the whole of part of a dog's tail other than for the purpose of medical treatment, subject to the exemption for docking the tails of certain working dogs. In particular, the legislation states:
a. that any veterinary surgeon who docks a tail must certify that s/he has seen specified evidence that the dog is likely to work in specified areas which are listed in DEFRA website
b. the dog must be no older than five days and will need to be microchipped;
The types of dog that may be docked are . Hunt point retrieve breeds of any type or combination of types. Spaniels of any type or combination of types.
Terriers of any type or combination of types.
It is slightly different for Wales where they give a more specific list of dogs that can be docked
Spaniels of the following breeds: English Springer Spaniel, Welsh Springer Spaniel and Cocker Spaniel, but not combinations of breeds
Terriers of the following breeds: Jack Russell Terrier, Cairn Terrier, Lakeland Terrier, Norfolk Terrier, but not combinations of breeds
Hunt point retrievers of the following breeds:
Braque Italian, Brittany, German Long Haired Pointer, German Short Haired Pointer, German Wire Haired Pointer, Hungarian Vizsla, Hungarian Wire Haired Vizsla, Italian Spinone, Spanish Water Dog, Weimaraner, Korthals Griffon, Slovakian Rough Haired Pointer, Large Munsterlander, Small Munsterlander.
Scotland again slightly different in that The current law is set out in section 20 of the Animal Health and Welfare (Scotland) Act 2006. This prohibits the mutilation of animals, apart from procedures specified in regulations, and the regulations which have been made do not include an exemption for non-therapeutic tail- docking of dogs. It will also be an offence to take a dog from Scotland for the purpose of having its tail docked.
Don't think any of this covers Boxers!
I don't think that kenneling is a reason for docking
Oh Northern Ireland have just introduced a ban on the docking of dogs tails, with an exemption for certified working dogs in The Welfare of Animals Act 2011.