Nigel Boardman once did the most extraordinary thing. He granted me an interview – his first ever.

 The chair of the government inquiry into David Cameron’s lobbying on behalf of the now collapsed Greensill Capital was once the City’s undisputed number one corporate lawyer. He’d seen off Sir Philip Green’s two tilts at Marks & Spencer, going for the jugular on each occasion. He personally advised an astonishing 12 FTSE100 companies.