More than 20 greyhound racing dog owners and trainers across NSW, Victoria and Queensland have been suspended after a series of raids which allegedly discovered the illegal use of live animals being used to bait and lure dogs.

The shock revelations come just a year after the industry regulator NSW Greyhound Racing told a parliamentary inquiry it had no evidence that such alleged crimes were occurring in the $144 million a year industry.

Greyhound racing is in the spotlight amid allegations of live baiting. Credit:Max Mason-Hubers

The inquiry's deputy chairman and Greens MP John Kaye at the time claimed Greyhound Racing NSW had "dodged a bullet" and issues like animal welfare and the allegations of live bait had been put in the "too-hard basket".

Late on Thursday, Greyhound Racing NSW announced it had stood down five industry participants and one licensed trainer for alleged live baiting offences and closed down the Box Hill trial track. Victorian greyhound racing authorities also announced it had suspended 10 people for allegedly using live baits at a track in Tooradin, south-west of Melbourne.