Biological Residues (Control) Regulations 1985 (S.I. No. 9 of 1985).

"Biological residue" defined as the residue of any substance, including metabolic products, including metabolites remaining in the tissues and organs of animals after slaughter as a result of treatment or exposure of animals to a pesticide, herbicide, fungicide, organic or inorganic compound, hormone or hormone-like substance, growth promoter, antibiotic, anthelmintic, tranquiliser or other therapeutic or prophylactic agents.