The European Court of Justice found that Estonia’s zero tolerance limit on Listeria monocytogenes cannot be applied to food which has left the control of the producer and is already on the market, and instead the existing higher tolerance limit will apply. The case originated when Estonia’s Agriculture and Food Board ordered M.V. Wool, a manufacturer of fish products, to cease production following the discovery of Listeria monocytogenes in samples taken from the company’s salmon and trout products in retail stores.