A report into a mass greyhound grave site on a Hunter Valley property will be passed to police and the RSPCA to consider whether any action can be taken, as two people have been charged over a separate discovery of 55 greyhound bodies at a site in Queensland.

The moves come as The Sun-Herald has been given photos of another mass grave site discovered in Victoria in 2009. Although the Victorian RSPCA were called in to investigate, senior RSPCA inspector Daniel Bode wrote to the people who made the discovery saying that the case was "very disconcerting for the RSPCA" but..."without any significant evidence we are unable to proceed further in establishing the cause of death".

A mass grave of greyhound skeletons was found in 2009 in Bendigo Victoria.

A central coast woman, Georgia Mercer, has also come forward and told the ABC that she too had found a mass grave site on the property she had bought twenty years ago at Warnervale. She said the dogs skulls had been smashed but when she called the authorities they told her nothing could be done because no one was caught in the act.

The acting chief executive of Greyhound Racing NSW (GRNSW), Paul Newson, told The Sun-Herald he had asked former deputy police commissioner Dave Madden to investigate the Hunter Valley property incident where it was claimed that dogs were being shot in the head for $50 and dropped in a deep pit. Mr Newson said he had already received an interim report.