
It involves booking her into the vet to have an xray, normally under general anasthetic. She would be layed on her back with legs extended and rotaed slightly to get the best picture. the xray is then sent by the vet to the British Veteruinary Association for scoring!
Your friend will need to take her KC reg with her to the vet and fill out the BVA form.
The last one I had Hip scored cost £54 for the anasthetic, £54 for xray plates and £12.50 the vets time, then there is a £20 something fee for the BVA!
Each Hip is scored on a scale of 0 (best) to 53 (worst). This would give a best score of 0/0 = 0 or worst score 53/53 = 106 at worst. One usually describes the total score, eg 7/7 would be shown as a total Hip Score of 14.
The breed mean score for GSD is 19, so a score lower (better) than that for breeding should be hoped for, but certainly no more than a few points higher, and then use a male with much lower score than the breed average.