Doe's anyone know how long ago has its been since the kennel club stop the registration
Between direct family ! or is there link just about how long ago it has stop!
Father and Daughter
Mother and Son
Brother and Sister

I think it may have been January 2010 and it was at the same time as the ban on registering more than two litters by C section.

I've searched the KC website and they unfortunately don't mention the date of rule change.

Might try Dog World news archive.

Dog World Issue of 15th January 2009 http://www.dogworld.co.uk/product.php/51759

"In a further move, the KC has announced that it will refuse to register puppies born from any mating of close relatives (mother/son, father/daughter or brother/sister) on or after March 1."

I was mistaken re the Two C section limit  http://www.dogworld.co.uk/product.php/News/02-Front-cover

"The KC announced the move - to come into force at the beginning of 2012 "