New Zealand police officers are being recruited to help out with security at the Commonwealth Heads of Government Meeting, or CHOGM, in Perth in October.
CHOGM organisers say 700 officers from other Australian states and up to about 20 New Zealand officers will provide support to Western Australia's police.
They will be sworn in as local officers and have the same powers, including the ability to carry guns.
A spokesperson for Western Australia's police force, Samuel Dinnison, says the police officers' role will be in protecting dignitaries and the public.
He says West Australian police are not expecting any trouble during CHOGM, but they have a responsible to ensure that, should an incident arise, officers are trained in the roles they need to fill and that is why outside police help is being sought.
About 50 heads of state are expected at the event which runs from the 28 to 30 October and the New Zealand officers will be required to spend around two weeks in Perth.