Notorious puppy farm baron is found guilty of animal cruelty for a third time 

A 'greedy' puppy farmer faces the prospect of a third ban in 18 years on owning animals after again being convicted for running a cruel dog breeding operation.

Kathryn Lisa King, 52, was convicted on 17 counts of animal cruelty and now faces being prohibited from having contact with any animals for years after a trial in Perth Magistrates Court.

She had faced 26 charges stemming from a raid by RSPCA Western Australia inspectors at property in Bullsbrook, north-east of Perth, in June 2020.

They found 32 dogs being kept in unsanitary and cramped conditions, including small metal cages and plastic crates.

The breeds found included Maltese cross Shih Tzus, Cavalier King Charles spaniels, poodles, and cavoodles. Nine were still puppies.

RSPCA spokeswoman Hannah Dreaver said this was a case of 'greed, pure and simple'.

'This woman was breeding a large numbers of dogs with absolutely no concern for their welfare, health or safety,' Ms Dreaver said.

She claimed Ms King ran an operation deliberately prioritising 'profits over welfare'.

King treated the dogs as 'money making machines', forcing them to have 'litter after litter'.

The 26 charges she faced came just two years after a five year ban on being in charge of or being within 10 metres of any animal expired.

That order was made after 50 dogs were found in a cramped underground bunker at a Kellerberrin property after a raid by police, RSPCA inspectors and council rangers.

The dogs were forced to live in an 'alien environment' poor ventilation and no sunlight.

They included German Shepherds, West Highland Terriers, King Charles Cavalier Spaniels, Labradors, and Tibetan Terriers.

She was fined $20,000.

Prior to that she had already been banned from owning an animal for a decade in 2004 over similar acts of cruelty.

King will be sentenced later this year.