In a non-corporate Commonwealth entity, the accountable authority has to chase each debt owed to the Commonwealth for which it is responsible. The only grounds for not pursuing recovery are a judgement by the accountable authority that recovery is not economical, satisfaction that the debt cannot be recovered at law, or a write-off authorised by legislation; each ground calls for a recorded decision.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.