15 Papua New Guinea MPs are under investigation for white collar crimes, including official corruption.
The Post Courier newspaper reports the investigation is into misappropriation, conspiracy, false pretences and fraud.
The PNG National Fraud and Anti-Corruption Directorate has only named one MP, John Simon, who is charged with two counts of false pretences and 38 counts of official corruption.
He is alleged to have provided the resources of two companies he owns for use at no charge during the 2012 election campaign and then claimed costs from the local administration after he was elected.
The Directorate says when this was turned down he had the District Administrator and the District Treasurer sacked.
During the past two years, three MPs had been successfully prosecuted for financial crimes.
They are Pomio MP Paul Tiensten, who is serving a nine-year jail term, the Gulf Governor Havila Kavo and Komo-Margarima MP Francis Potape, who are both awaiting sentencing.