Mr Pohiva said if these bodies failed to carry out their core functions to the best of their abilities, corruption in Tonga will continue to increase.
Radio Tonga said at his media conference, just days out from the election, documents were handed out which mentioned a former prime minister Lord Tu'ivakano.
In reply, Lord Tu'ivakano said false and inaccurate information aiming to ruin other people's reputations can cause chaos.
He has asked candidates running for parliament to respect the law and let the police carry out their core functions.
