On this rare occasion, despite his usual toxic intent, Farage is correct. The DPP can intervene in private prosecutions if it deems there to be any problems with them.
No stone should be spared here. The DPP does need to be asked about what it knew.
It's not really about money now and the media shouldn't stop until the right people are in the dock. The PO needs to know that their liars can't sleep easy.