The Police Union says the Liberal Party's pledge to change the incentives offered to officers to encourage them to move to regional areas will make an already bad situation worse.
The Liberals have pledged at least a $2,000 payment for all regional police positions, with $4,000 offered for Australind, Bunbury, Esperance, Geraldton and Hopetoun.
In addition, officers in non-coastal areas will receive retention payments of between $4,000 and $12,000 dollars, depending on the availability of subsidised housing.
The union's Harry Arnott says it is already difficult to attract officers to southern areas because incentives are greater in other locations.
He says this will make a bad situation worse.
"It's going to cause division in the southern part," he said.
"At the moment we've established well and truly there is a division between north and south because of the district package offered up north.
"This package goes no way towards alleviating that problem.
"A police officer who transfers to, say Katanning, after the election date after this is implemented will receive a payment that officers who already went to Katanning didn't receive.
"It's going to create an issue between staff working in the same location."
In making the announcement, the Police Minister Liza Harvey said the payments were targeted at difficult to staff stations where there had been long term vacancies.
"This is geared at addressing those locations where historically we've sometimes had up to six months or longer to fill some of those positions," Mrs Harvey said.
"Areas such as Leonora, Laverton, Katanning, Dalwallinu, where traditionally it's been difficult to place police officers."