2013 horse meat scandal only found more than 1% horse DNA in Asda's tins of but it also contained four ppb of phenylbutazone, marking the first time since the start of the scandal that bute had been detected in a meat product in the UK food chain. However, one problem raised was over documentation; all of the UK animals with phenylbutazone contamination tested in early 2013 possessed a "horse passport" that allowed the carcasses to be sold for human consumption. The veterinary residues committee (VRC) reminded the public in July 2012 that it had been "repeatedly expressing concern" about phenylbutazone contamination. and recent discoveries
Tesco profits by £250 million. The misreporting resulted in almost £2.2 billion being wiped off the value of the company’s stock market value. The suspended executives included former commercial director Kevin Grace and UK managing director Chris Bush. The profit overstatement was subsequently revised upwards to £263 million following an investigation by the accountancy firm Deloitte, and it was clarified that the inflated profit figure was the result of Tesco bringing forward rebates from suppliers. The Serious Fraud Office (SFO) confirmed on 29 October 2014 that it was carrying out a criminal investigation into the accounting irregularities but declined to give