The leaking of over 11 million confidential documents from Panamanian law firm Mossack Fonseca has put the role of Panama in aiding wealthy individuals avoid tax in the spotlight and on the front pages.

However, there is less focus on the role that the UK and its Crown Dependencies and the British Overseas Territories have played. It has been reported that more than half of the 300,000 companies that were clients of the law firm were registered in British administrated jurisdictions.

The data reveals that of the 14,000 intermediaries that Mossack Fonseca worked on behalf of, the UK was the second highest juri...