Andrew Park explores the effect of offshore data leaks on tax management and evasion

With the bunting now down from the recent Guardian and BBC Panorama celebrations in winning the Investigation of the Decade accolade at the British Journalism Awards, stolen confidential information from offshore service providers –firms included – continues to find its way into the hands of journalists and the UK tax authorities.

The Panama Papers exposé – for which the Guardian and the BBC were honoured – originated from a still unidentified source who claimed social justice motives. It comprised the comprehensive confidential client records, internal notes and correspondence of Panamanian firm Mossack Fonseca. Circa 11.5m documents were leaked, first to German newspaper S