"Frauds became more complicated in order to hide criminal activities. … Fifteen years ago, if we were investigating, we would find that the criminal inserted one artificial fake company in the sub-contracting chain. Today, if we were to check the same structure we would find six, eight or ten levels of sub-contractors, including off-shore companies. We must follow the cash-flow and this means we have to adapt ourselves also to the new modus operandi. This is why it is very important for us to use innovative methods to investigate, to detect but also to prevent fraud and corruption."