The family of Thomas Orhions Ewansiha is seeking to quash a coroner’s ruling that the Nigerian doctorate student died of natural causes while in Immigration custody two years ago.

They have filed a criminal revision application against the Kuala Lumpur Coroner Court’s ruling delivered on Nov 12, which held the authorities were not liable over Ewansiha's custodial death.

The family’s counsel Rajesh Nagarajan confirmed that the...