Lawyer Syahredzan Johan fears that one top and two former top officials in government will be taken in under the Security Offences (Special Measures) Act 2012 (Sosma), which allows an initial detention of up to 28 days without trial.

Syahredzan said this in reference to the police report lodged yesterday by Umno Youth against former Bank Negara governor Zeti Akhtar Aziz, outgoing Malaysian Anti-Corruption Commission (MACC) chief Abu Kasim Mohamed and former attorney-general Abdul Gani Patail.

Umno vice-chief Khairul Azwan Harun alleged in the report that the three were involved in a conspiracy to topple Prime Minister Najib Abdul Razak and the Malaysian government.

"This was a serious accusation," Syahredzan said in his Facebook post yesterday.

"I am worry the three will be detained under Sosma because they will be probed under Section 124B of the Penal Code for activity detrimental to parliamentary democracy. I hope not," he said.

Umno Youth's police report followed the civil suit by the US Department of Justice to seize and recover billions of dollars in assets that had allegedly been siphoned from state investment fund 1MDB.

Najib was not named in the civil suit but there were 36 mentions of “Malaysian Official 1” in the filings that his critics have claimed could only refer to the prime minister.