Top bureaucrats called up for Pan Pharma case TWO of the nation's top public servants will be the government's key witnesses in a $150 million court case against a group of London insurers who are refusing to cover the massive payouts made in the wake of the Pan Pharmaceuticals collapse. Ian Watts, secretary of the Department of Prime Minister and Cabinet, and David Tune, secretary of the Department of Finance and Deregulation, will take the stand in a case set to begin in August.