Mr Hain has been concerned to wipe the slate clean after he found that his deputy leadership campaign team had received an undeclared donation from Jon Mendelsohn.
He has now retrospectively declared a fund-raising function at a Cardiff restaurant, sponsored by Huw Roberts, Director of Welsh Affairs, Royal Mail Group.
It is for others to judge how far these declarations were voluntary and how far they were pre-empted by journalists like Guido Fawkes. It is for the authorities to decide how far Mr Hain is culpable under the Political Parties Elections and Referendums Act 2000. On the evidence in the press and the blogosphere so far, it seems that, if he is guilty, then at least half-a-dozen other Labour politicians are in the dock with him.
What is much more concerning is the involvement in party political affairs of the head in Wales of what is still a public-sector organisation.