Police hope to go to arbitration over pay next month.

More than 75 percent of members have voted NO to the latest pay offer, which included a new overtime rate, a pay increase and a cash payment.

They say it doesn't remedy the decline in salaries.

Police Minister Mark Mitchell says it's disappointing - and will draw out an already lengthy process.

Police Association President Chris Cahill told Heather du Plessis-Allan they want pay increases to match the rate of teachers.

"They received 6 percent last July, which is when ours (agreement) ran out," he said. 

"They received another 4 percent at the start of April and they'll receive another 4 percent at the start of December this year."

Cahill says those are the figures his members want to talk about. 

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