Julian Assange, the WikiLeaks founder, today pledged to make public the confidential tax details of 2,000 wealthy and prominent individuals, after being passed the data by a Swiss banker who claims the information potentially reveals instances of money-laundering and large-scale illegal tax evasion. Rudolf Elmer, formerly a senior executive at the Swiss bank Julius Baer, based in the Cayman islands, said he was handing the data to WikiLeaks as part of an attempt "to educate society" about the amount of potential tax revenues lost thanks to offshore schemes and money-laundering. "As [a] banker, I have the right to stand up if something is wrong," he said. "I am against the system. I know how the system works and I know the day-to-day business. I want to let society know how this system works because it's damaging our society," he said. Elmer will appear in a Swiss court on Wednesday charged with breaking Swiss banking secrecy laws, forging documents and sending threatening messages to two officials at his former employer. He denies the charges. Assange ... said he would pass the information to the Serious Fraud Office(SFO), examine it to ensure sources were protected, and then release it on the WikiLeaks site, potentially within "a couple of weeks".