At some point before the end of this year, Danske Bank is due to finish its own investigation into what went so badly wrong with the organization’s internal governance that it allowed more than €200 billion (U.S. $227 billion) of dirty money to flow through its Estonian subsidiary undetected.

Neil Hodge is a freelance business journalist and photographer based in Nottingham, United Kingdom. He writes on insurance and risk management, corporate governance, internal audit, compliance, and legal...