The executive director of PNG's Institute of National Affairs says the government needs to improve the management of trust funds.
Paul Barker's comment comes after the Governor of Gulf Province, Havila Kavo, was found guilty of misusing about 50,000 US dollars from a trust account belonging to the people of Kikori district for infrastructure.
He is to be sentenced next month.
In April, the Pomio MP, Paul Tiensten, was given a nine-year jail term for the misuse of four million US dollars in public funds.
Paul Barker says the government, in its annual budget documents, is making commitments to improve the accountability mechanisms for public trust funds.
"But they are hard things to monitor and to account for, and unfortunately the bodies like the Auditor General are way behind and limited in their capacity to be overseeing these sorts of funds, let alone the government's own internal oversight mechanisms."