Marape made this statement in Parliament when responding to questions raised yesterday.
He said the inquiry will begin soon and those implicated must face the full force of justice.
PM Marape went on and urged the Ombudsman Commission to go beyond their investigation and hold those implicated accountable.
“I am not fearful of this inquiry. If I am found to have conducted improperly when the inquiry is terminated, I will be the first one to resign from this office, Mr Speaker,” he said.