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
Criticism of Tesco other retailers across the country, did sell the postcards. The Advertising Standards Authority in January 2009 found that Tesco advertising was misleading . Tesco apologised for selling anti Jewish literature to customers in Ireland. Sheikh Dr Shaheed Satardien, head of the Muslim Council of Ireland, said this was effectively "polluting the minds of impressionable young Islamic people with hate and anger towards the Jewish community." In Autumn 2006, Tesco was caught up in two scandals over the treatment of workers in factories supplying it in Bangladesh. The first was a Channel 4 News investigation, which found child labour in four