Faults
Very serious: Any long-haired coat or coat darker than mouse-grey to silver-grey is considered a most undesirable recessive trait. White, other than a spot on chest. Eyes any other colour than grey, blue-grey or light amber. Black, mottled mouth. Non-docked tail. Cryptorchidism. Dogs exhibiting strong fear. Viciousness.

Serious: Poor gait. Very poor feet. Cow-hocks. Faulty back, either roach or sway. Badly overshot or undershot jaw. Monorchidism. Snipey muzzle. Short ears. Yellow in white marking. Undersize.
Faults: Doggy bitches. Bitchy dogs. Improper muscular condition. Badly affected teeth. More than four missing teeth. Back too long or too short. Faulty coat. Neck too short, thick or throaty. Low tail-set. Elbows in or out; feet east and west.

Minor: Tail too short or too long. Pink nose. Oversize should not be considered a serious fault, providing correct structure and working ability are in evidence.