2013 horse meat scandal negative for horse DNA. products were tested but were negative for all foreign DNA. Of the 37% of beef products tested positive for horse DNA, Tesco's inexpensive Everyday Value Beef Burgers tested at 29.1%. All other reported brands had less than 0.3% horse DNA. These products originated from Liffey Meats and Silvercrest Foods in Ireland and Dalepak Hambleton food processing plant in the United Kingdom. Trace amounts of horse DNA were also found in raw ingredients imported from Spain and the Netherlands. Laboratory DNA investigations were requested by the authorities into possible donkey meat adulteration of minced meat products labelled
Criticism of Tesco the SFO, who took matter out of the hands of the Financial Conduct Authority, the City's business regulator. The UK accountancy regulator, the Financial Reporting Council, is also reported to be monitoring Tesco. Tesco's auditor PwC declined to comment. It found that they were overstated by £118m in the first half of this year, by £70m in the 2013-2014 financial year and by £75m before that. Warwick Business School's Prof Crawford Spence said: "Now that Tesco are being investigated for fraud by the SFO, the Financial Reporting Council have yet greater reason to start an investigation into the auditors' role