The Malaysian Anti-Corruption Commission and attorney-general Mohamed Apandi Ali should allow the files on investigations into Prime Minister Najib Abdul Razak's personal bank accounts to remain open, says a DAP parliamentarian.

Puchong MP Gobind Singh Deo, who is also chairperson of DAP's national law bureau, also opined that the Federal Constitution does not empower Apandi, as attorney-general, to close a case.