Graft watchdog Center to Combat Corruption and Cronyism (C4 Center) has urged the authorities to ensure a thorough and independent investigation on the claims made by so-called whistleblower known as "Edisi Siasat".

In a statement today, C4 Center said claims made by Edisi Siasat are "explosive" and "shocking", implicating top officers in the MACC and the police.

C4 Center said Edisi Siasat had chronicled high-level corruption...