Inspector-general of police (IGP) Khalid Abu Bakar said four investigation papers have been submitted to the Attorney-General but no decision had been made yet.
Mahathir, who was premier for 22 years before he stepped down,has denied calling for foreign interference in the domestic affairs of the country in a bid to oust Najib.
"I did not ask any foreign governments to interfere. I said that all the means to redress in this country has been shut down by Najib. So, I will tell the foreign press about that," the outspoken leader said.
Mahathir, who has been campaigning to oust Najib, was asked to respond to a statement by Communications and Multimedia Minister Salleh Said Keruak who expressed alarm at Mahathir's alleged suggestion that foreign intervention was allowed to bring down the Prime Minister.
Salleh said Mahathir had said that there was little hope that Najib would step down without outside pressure.
Najib has faced sustained pressure to resign since last year over the scandal surrounding state fund 1Malaysia Development Berhad (1MDB), amid allegations that funds worth USD 680 million from 1MDB had been channelled into his private accounts.
Najib maintained that he has not used the funds for personal gain, and has since been cleared of any criminal offence or corruption.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
