Bank Negara Malaysia's correspondence to the Public Accounts Committee (PAC) confirmed businessperson Jho Low's link to 1MDB, said PAC member Tony Pua.
According to the DAP lawmaker, this contradicted inspector-general of police Mohamed Fuzi Harun's claim that PAC had concluded that Low had no role in the troubled firm.
Bank Negara had reportedly written to PAC chairperson Hasan Arifin on April 6, 2016 to confirm that Good Star Ltd, a Cayman Island-registered company, was owned by Low.
In view of this, Pua said Fuzi must now account for whether the police investigated the US$1.03 billion transfer from 1MDB to Good Star and whether the police questioned Bank Negara officials who confirmed Low's involvement with Good Star.
"If not, then clearly the IGP must be sacked for the simple reason that he is attempting to protect the biggest crooks who are robbing Malaysians blind," he charged.
Penang-born Low is currently in the spotlight again after Indonesian authorities seized the Equanimity, a US$250 million superyacht, at the request of the US Federal Bureau of Investigations (FBI).
US authorities are claiming that the yacht is owned by Low and bought using 1MDB-linked funds that were laundered.
Following this, several government officials have claimed that Low was not the owner of the Equanimity and that he has no links with 1MDB.
Among them was Fuzi, who said police investigations had determined that there was no concrete evidence thus far that Low had a hand in 1MDB's affairs.
However, Low's name had cropped up in US and Singaporean courtrooms which heard either ongoing or past 1MDB-related cases.
US Department of Justice (DOJ) had named Low extensively in their court filings to seize assets allegedly bought with 1MDB-linked money.