Until last week, the firm had been defending the Italian group and even launched a legal action against an Italian newspaper for suggesting it was under investigation for its role in the alleged e11bn (£7.6bn) fraud at Parmalat. The affiliate, Grant Thornton (Italy), audited some Parmalat subsidiaries, including Bonlat, a Cayman Islands-based unit that reported a fictitious e3.95bn bank account on its books and brought the scandal to a head.