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 falsehood over "The Guardian"s claims that Tesco has developed a complex taxation structure involving offshore bank accounts in the tax haven of the Cayman Islands. "The Guardian" claimed that this arrangement would enable Tesco to avoid an estimated £1 billion tax on profits from the property sales, and also to avoid paying any tax on continuing operation of the stores, as the rate of corporation tax in the Cayman Islands is zero. On 5 April 2008 it was reported that Tesco was suing "The Guardian" for libel and malicious falsehood over the newspaper's claims that Tesco has developed a complex