The move comes as the Sunday Herald Sun can reveal that at least $2.5 million in wages and other costs is being sucked out of Victoria Police every month because officers are being forced to act as jailers.
At one stage last week, 357 offenders were squeezed into police cells overnight, ripping dozens of police away from frontline duties.
Of the 357 offenders, 322 were Corrections Victoria prisoners who should have been in jails or remand centres.
Police Association secretary Greg Davies said the problem had become "ridiculous".
"We're not trying to be alarmist, nor are we trying to make trouble for a government that did not create the problem," Mr Davies said.
"But there is a very real chance that this will end in tears, or worse, if it is not positively and urgently addressed."
To address the problem urgently, Mr Davies said vacant government buildings should be transformed into prisons because "we simply can't wait five years for Ravenhall to come on line".
"Any sort of facility - ideally one that already has a commercial kitchen in it, that could have some razor wire fencing and CCTV installed," he said.
While the Sunday Herald Sun understands there are no plans to use government buildings to house prisoners, the radical move of transforming privately owned facilities into minimum security prisons is under way.
news.com.au 23 Nov 2013