Tassie and SA govts punished for longevity

The Tasmanian and South Australian governments have suffered from being in office so long, NSW Labor Leader John Robertson admits.

"What we've seen was two good premiers suffer the consequences of the `it's time' factor," he told reporters in Sydney on Sunday.

Labor, led by Lara Giddings, lost Tasmania's state election on Saturday after 16 years in power.

In South Australia, where Premier Jay Weatherill's Labor held power for 12 years, the result remains uncertain.

NSW Labor was kicked-out of office after 16 years in power at the 2011 state election, with the party also facing a series of brewing corruption scandals.

Mr Robertson refused to blame those scandals, which have included several Labor ministers fronting the state's corruption watchdog, to a fall in support for the party across the country.

If the Liberals win South Australia, as they did in Tasmania, the party will run all the state and federal governments.

That will mean cuts to workers' rights, Mr Robertson added.

"You've only got to look at what (NSW Premier) Barry O'Farrell did in his first 12 months; ripped away death and disability insurance for our police officers, ripped away benefits for people who are injured at work," he said.

"This is the sort of agenda working people in NSW and right across Australia can expect with wall to wall Liberal governments."