<p>Michael Woodford sounded the alarm over a 1.1bn fraud at Japanese camera and optical instruments company Olympus. Photograph: Graham Turner for the Guardian</p><p>Michael Woodford, the former Olympus president turned whistleblower, has attacked the decision of the Competition Commission not to seek automatic rotation of company auditors.</p><p>Woodford, who sounded the alarm in 2011 over a 1.1bn fraud at the Japanese camera and optical instruments company, says a mandatory change is needed to prevent similar scandals at other companies.</p><p>In his book Exposure: Inside the Olympus Scandal, Woodford revealed how the close relationship between Olympus and its audit firm KPMG over many years had reduced the likelihood of fraud coming come to light.</p><p><a href="http://www.theguardian.com/business/2013/oct/28/auditors-rotate-olympus-whistleblower-michael-woodford">Keep reading...</a></p>