After a week of facing a backlash over a perceived anti-business agenda, the Labour leader came out fighting and picked on the British offshore islands on Saturday.
'A Labour government is not going to have endless consultation and dithering. We are going to give six months to these tax havens to agree to publish a register of beneficial ownership, and if they do not act we will recommend to the OECD that they are put on a blacklist.'
Mr Miliband said he would be writing to the Crown Dependencies and Overseas Territories.
Treasury and Resources minister Gavin St Pier was quick to hit back and featured on BBC Radio 4 and BBC News on Saturday evening.
'We will await Ed Miliband's letter with interest. We have held a number of meetings with Labour's shadow team over the past two years, and those meetings have indicated a greater level of understanding of Guernsey's track record on tax transparency than is reflected in today's media coverage,' he said.
