Papua New Guinea's Prime Minister Peter O'Neill says Taskforce Sweep had gone astray by waging its anti-corruption campaign through the media.
He accuses it of continuously leaking investigation matters.
The comments come as Mr O'Neill announced the disbanding of the country's premier anti-corruption investigative team.
This follows attempts to arrest Mr O'Neill in relation to his alleged role in massive illegal payments to a law firm.
The government says that police will take over all investigations that have been handled by Taskforce Sweep.
Mr O'Neill told a press conference that the unit had become heavily politically influenced.
"There have been constant visits by politicians to this office. Meetings have been going on through this office to try and influence the investigations that are going through there. It has been brought to our attention that there's been constant leaks of investigations currently going on through the media which has enabled us to take this action today."
PNG Prime Minister Peter O'Neill