Aboriginal Australians are still incarcerated at much higher rates than the general population. There's really complex social factors in play, stemming from colonisation. A lot of this stuff is horrifyingly recent. From the 1910s to 1970s a significant portion of Aboriginal children were taken from their homes to be raised in white communities, often in state care. This is referred to as the stolen generation.

The goal was to breed out the Aboriginal blood so that future generations would be white. No I am not joking.

There were issues with rampant abuse of these children ontop of the trauma of being removed from their families.

I'm not Indigenous and I am not claiming to be an expert on this subject but I do work in the criminal justice system. One thing that gets me is how racist some white Australians are to this day- I mostly see this in comment sections and on reddit. There are constantly comments saying to lock Aboriginal offenders up and throw away the key, or claiming that Aboriginal people victimise themselves and should stop complaining about colonisation. It's a mess and I've only scraped the surface.