Ask H&H: poor shoeing

Q: IT has been pointed out to me that my farrier, who has worked for me for many years, has been shoeing my horses in such a way as to injure them. This has caused me much distress.

Who keeps a check on shoeing standards — are spot checks carried out? If veterinary surgeons come across sub-standard farriery work are they in a position to report it? Surely there are both trading standards and welfare issues here?