Police and protective service officers began taking the measure from 7am on Thursday, along with writing slogans on police vehicles, and parking outside government offices.
The pay dispute between the Police Association of Victoria and Victoria Police caused members to begin taking action late last year.
In May, an in-principle agreement was reached with officers securing a shift to a nine-day fortnight and a 16 per cent pay rise over four years.
However, the deal was rejected by members and parties returned to the negotiating table.
Victoria Police has since rejected updated claims and torn up previous terms under the proposed agreement, sending negotiations back to square one, the police union said on Thursday.
"Our members don't want to be having to take industrial action, but since having served a revised lot of claims on Victoria Police, they've been unable to engage in any meaningful negotiations," secretary Wayne Gatt told reporters.
Among the claims, police want a 24 per cent pay rise over four years and the introduction of an 8.5 hour shift to account for putting their gear on and taking it off at either end of their working day.
Mr Gatt said executive command had 'completely lost control of crime in Victoria'.
"It's not enough to let executive leadership in these agencies just run rogue and allow their workforces to become completely depleted to a point where in policing, we can't even do our core job," he said.
"Get in there, get your sleeves rolled up and sort this out."
A Victoria Police spokesman said the force was focused on reaching a new enterprise agreement that recognised the hard work of police and PSOs.
"To this end we have asked the Fair Work Commission to assist the parties in expeditiously resolving negotiations," he said.
"Costing of the revised TPAV log of claims necessitated this move as the figure falls well outside Victorian Government wages policy and Victoria Police is not authorised to bargain beyond these parameters."
The police minister has been contacted for comment.
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