The Solomon Islands Leadership Code Commission has reminded national MPs they must disclose their financial affairs, benefits and gifts.
The chairman, Francis Luza, says MPs who fail to declare their business interests and provide records of benefits and gifts are breaking the law.
He says the declaration of business interests also applies to public servants.
The comments come as the Auditor General, Robert Cohen, told MPs his office is "a toothless barking dog", as it doesn't have the power to prosecute.
The Office's task is to ensure Government accounts are transparent.
The LCC, the Auditor General's Office and the Office of the Ombudsman are the country's three anti-corruption bodies.