All states have their own peculiarities, South Australia which was not a convict state but formed through act of parliament for the South Australia company, based on ideals of political and religious freedom. However not for nothing is the City of Churches known as the City of Evil and Australia's murder capital. For many years the mysterious and very secretive "Family" allegedly controlled child prostitution and murders, nothing has even been proven but apparently very wealthy and well connected members of Adelaide Society.
South Australia was the last state to get an independent corruption commission and even now its activities are 'secret". An investigation into corruption into local government was quashed and the results never made public. The politician who made the call, a former union rep who allegedly received envelopes of cash from employees who wanted a package stated that it was not in the public interest. By pure coincidence the Council CEO now a state government executive is in the cross hairs of the commission, apparently.
And then there was this pair of rogues in Queensland (as corrupt as they come, but I'm not alleging any involvement in sex rings, et al). When you have a Minister of Racing (who is at one point concurrently the Minister for Police), you know you're is some murky stuff.