The surveillance of food for chemical residues is essential for the protection of public health. As part of their national responsibilities the Food Safety Authority of Ireland monitors the safety of food in the Irish food chain in conjunction with 41 official agencies and their associated laboratories. Through this network of co-operation it is ensured that all food consumed, distributed, marketed or produced in the state meets the highest standards of food safety and hygiene. The national testing programme for antibiotic residues in foods of animal origin is carried out by the Department of Agriculture, Food and Rural Development under an EU approved annual plan. Under this plan departmental veterinary staff based in export approved slaughtering plants implement the relevant controls by performing inspections and taking samples in such plants. Controls at farm level are implemented by Department of Agriculture, Food and Rural Development staff, who are based in its district veterinary offices distributed throughout the entire country, usually on a county, local government administrative unit, basis.
The Department of Agriculture, Food and Rural Development also has a centrally based specialist unit which conducts focused investigations. These investigations are conducted in co-operation, as appropriate, with district veterinary offices, the Garda, customs services and, or staff in the slaughtering plants. Meat products are analysed at the Central Meat Control Laboratory, Abbotstown, Dublin; milk and milk products are examined by the three dairy science laboratories located in Dublin, Limerick and Cork. A large number of samples are analysed by the food industry as part of their "own checks" food safety assurance programmes and these results are fed into the Department of Agriculture, Food and Rural Development national programme.