Amid calls for the arrest of Tun Dr Mahathir Mohamad for his alleged involvement in the Wall Street Journal (WSJ) reports last week, former Inspector-General of Police Tan Sri Musa Hassan said the allegation must first be thoroughly investigated.

“I believe we have to investigate first. The investigations has just begun, although it should have been done much earlier. So, let them investigate first and see how true it is,” he told media after a seminar in Universiti Islam Antarabangsa (KUIS) today.

Musa was one of the panel member of the seminar.

"If there are truth to the allegation, then the police must take action,” Musa added.

On Monday, Global Moderates Movement (GMM) chief executive officer Datuk Saifuddin Abdullah said the police should arrest Dr Mahathir if he was the mastermind behind the reports.


On Monday, Kedah Menteri Besar Datuk Seri Mukhriz Mahathir has vehemently denied his father, Dr Mahathir is the mastermind behind the revealing of the issues plaguing 1MDB.

"I am puzzled by the Prime Minister's remark ... I'm assuming he had other information but I don’t believe that if Tun Mahathir has highlighted several issues related to 1MDB, the fact remains that he was never involved in any efforts to forge any documents or became the mastermind behind the WSJ report. This is totally unfair." Mukhriz told reporters.

Datuk Seri Najib Razak had alleged that Dr Mahathir was the mastermind behind the WSJ report which alleged US$700 million (RM2.6 billion) had been improperly transferred into his personal account.

"I believe Tun, working hand in glove with foreign nationals, including the now discredited political attack blog Sarawak Report, is behind this latest lie.

"Let me be very clear: I have never taken funds for personal gain as alleged by my political opponents – whether from 1MDB, SRC International or other entities, as these companies have confirmed," Najib wrote on his Facebook page.