Chairman of the RCI on illegal immigrants in Sabah, Tan Sri Datuk Amar Steve Shim Lip Kiong, said the report was completed in January and copies were tendered to the King and Prime Minister Datuk Seri Najib Tun Razak.
"It's up to the Prime Minister to take the necessary action" he said, after a courtesy call on Head of State Tun Datuk Seri Panglima Haji Juhar bin Datuk Haji Mahiruddin .
Shim, who is the former Chief Judge of Sabah and Sarawak, led the six member delegation to brief Juhar on the RCI report at the State Istana on Monday.
He said the public had to wait until the release of the report to know anything of public importance.
"Until then I can't say much" he said.
The establishment of the RCI was announced by Prime Minister Datuk Seri Najib Tun Razak in August 2012 to investigate problems relating to citizenship and immigrants in the state of Sabah.
The Inquiry began on September 21, 2012 and covered eight terms of reference, including investigating the number of foreigners issued Malaysian identity cards, whether the issuance was in accordance with the law, whether they had been registered in the Sabah electoral roll and the social implications of these foreigners in Sabah.
The RCI panel commissioners were Tan Sri Steve Shim (chairman), former Sabah Attorney-General Herman J. Luping, University Malaysia Sabah vice-chancellor Kamaruzaman Ampon, former Sabah state secretary K.Y. Mustafa and Malaysian Crime Prevention Foundation deputy chairman Henry Chin Poy Wu.
They were given six months to complete the investigation and submit a full report plus recommendations but the duration was extended .