inquiry

The Justice Department closed its investigation last year without filing charges against Gaetz; the Ethics Committee then opened its own inquiry.

That investigation is still ongoing, though Gaetz has stated publicly that he will no longer cooperate with the committee's inquiry.

The troubled organisation is currently the subject of a long-running inquiry into the Horizon IT scandal, in which hundreds of sub-postmasters were wrongly prosecuted after faulty software made it appear money was missing from their accounts.

Railton has already told the Post Office inquiry that a new deal was needed for sub-postmasters, to put them at the centre of the business.

Business Secretary Jonathan Reynolds told the inquiry on Monday that he didn't feel sub-postmasters were getting appropriate pay for the amount of business they conduct.