The $5bn settlement recently agreed by Goldman Sachs is the latest in a long list of multi-billion dollar fines paid by banks implicated in the 2008 financial crisis. But behind these giant corporations are individual bankers, taking everyday decisions. It is those decisions which really matter. If you could find a way to nudge bankers towards better and safer choices, building a culture of integrity, you might avoid future financial trouble. But can you make bankers behave better? Taking evidence from witnesses including a Goldman Sachs insider and a regulator deploying psychologists in banks, The Inquiry looks for an answer. (Photo Montage: Bankers/Stock market charts/City of London. Credit to Getty)