May I just clarify this? The Prime Minister administers the ombudsman's legislation, but the ombudsman still tables his report and reports to the Parliament. In terms of his annual report, whilst he gives it to the Prime Minister, the legislation mandates that the Prime Minister must table that report within fifteen sitting days of receiving it.
The ombudsman, under the legislation, has the power to table special reports, either publicly or into the Parliament, so it's not correct to characterize the ombudsman as reporting directly to the Prime Minister. The Prime Minister administers the legislation, but within the legislation, the ombudsman has the power to make reports directly to the Parliament.