Using artificial intelligence to keep criminal funds out of the financial system

This is a key question at the heart of efforts to tackle money laundering: if you work for a bank or other financial institution and have suspicions money laundering is happening, you have a legal duty to speak up. Your suspicion could be based on pure intuition – a sense that something just doesn't quite add up – but the law nonetheless expects you to act. Across a huge institution, however, processing millions of transactions per hour, only a tiny share of customers will meet an actual human being. Could software be taught the human intuition that senses something is not quite right? Or can it pick out suspicious behaviour that even humans might not notice?