It comes two months after police questioned news editors following a police report filed by Farhash Wafa Salvador.

Whistleblower Albert Tei questions the prime minister and his former aide for not taking legal action against Sofia Rini Buyong.

It is part of a video secretly recorded by businessman Albert Tei last year.

The prominent whistleblower is being investigated for criminal defamation over claims by a woman named as a star prosecution witness in a corruption case involving the prime minister's former aide.

This follows the emergence of a second video showing a woman stating that the MACC chief had always known about a plot said to be orchestrated by the prime minister and his aide to record incriminating videos of Sabah politicians.