The new law that could jail executives for “recklessness” in managing a bank was needed, Mark Carney has said, because the bankers involved in the 2007-08 crisis “got away with it”.

But before the law the Governor of the Bank of England endorsed so unapologetically - Section 36 of the Financial Services (Banking Reform) Act 2013, to be formal - comes into force, it should be asked whether it would, in fact, stop anyone "getting away with it" again.