I`m a really big fan of the Aussie gritty outback crime drama`s, as they`re completely unique to Australia and quite often, they take not so subtle swipes at the seemingly endemic racism towards Aboriginal people in these communities, which is letting the word know that the mistreatment of these people is sadly still alive and well today.
Have a look at Mystery Road too, I think you`ll like it. ( On Iplayer )
Series one, especially of the tv drama is brilliant, gripping, seedy and dark A/F.
There`s a film too, but it`s not as good as the tv series ( imo )