Four major supermarkets have been referred to prosecutors for dozens of health and safety violations as well as operational breaches, Piraeus prefectural officials said yesterday. Authorities took action against the Lidl, Carrefour-Marinopoulos, Dia and Kanakis chains after inspections found goods unfit for human consumption and inadequate health and safety standards at branches in Salamina. At Dia, goods that had past their expiry date were found on the store shelves, inspectors said. Also at Carrefour-Marinopoulos prices for products displayed on shelves were allegedly found to be different from those at the checkout register. Meanwhile, a Rhodes court passed down yesterday a three-year jail sentence on a 39-year-old trader after nearly 20 tons of rotten goods were found in his warehouse.