DOGS Trust in Harefield has added its voice to other animal welfare charities calling for immediate action from the government and the greyhound racing industry.
The call for action follows reports of the activities of David Smith, reported to have killed an estimated 10,000 ex-racing greyhounds.
Clarissa Baldwin, chief executive officer of the Dogs Trust and chair of the Greyhound Forum, said: "If the reports of the slaughter of thousands of greyhounds are true, the situation is simply intolerable. We have been calling for regulation of the industry for a long time and, after reports like this emerge, it would be unforgivable if the sport's governing bodies do not sit up and take notice. There have been past instances of horrific abuse of ex-racing greyhounds, which have resulted in prosecution, so there is no excuse for sitting back and ignoring this. The fate of greyhounds after their racing career is over should be at the heart of an enquiry."