Three men have been arrested at meat plants inspected by the Food Standards Agency, Dyfed-Powys Police said.
Two men have been arrested at Farmhouse Meats near Aberystywth, west Wales and another man has been arrested at the Peter Boddy Slaughterhouse in Todmorden, West Yorkshire.
All three have been arrested on suspicion of fraud, and are being interviewed by police and FSA staff.
More top news
Minh Quang Pham was sentenced in a US court for three counts of terrorist-related activity.
The actor was told he must stay 100 yards away from Amber Heard after she took out a restraining order against him.
Dr Henry Heimlich saved a woman choking on a hamburger at his retirement home.