Something was not adding up. Trawling through the figures for a nationwide retail chain, officials from the Irish tax authority just could not tally the numbers when it came to the firm’s customs debt. The family-owned business was importing a significant amount of goods from outside of the European Union, thereby involving customs tariffs. However, the amount being declared seemed light given the overall financial position of the business. As it delved into the detail, the Revenue officials quickly realised that the direct importation of the goods was just one part of a wider financial and logistical jigsaw – one…