A Food Standards Agency investigation examined the possibility that food waste at the Bernard Matthews cutting plant at Holton may have been stored inappropriately.
The investigation concluded there was no evidence of any offences under the Animal By-Products Regulations 2005, for which DEFRA is the enforcement authority.
The Food Standards Agency also considered whether there was sufficient evidence to justify a prosecution under the Animal By-Products (Identification) Regulations 1995 or the Food Hygiene (England) Regulations 2006, for which the agency is the enforcement authority. The agency concluded there was insufficient evidence to provide a realistic prospect of conviction and decided not to proceed to a prosecution in this case.