I haven't done direct work with rehabilitation myself.
I will say that in the cases that I studied, sometimes I noticed that judges would characterize prison as a source of treatment for rehabilitation needs of indigenous women. Other judges located these rehabilitative needs in the community. I think the former construction is problematic, as there is so much research to support that incarceration harms rather than rehabilitates.
In terms of indigenous women, something struck me when I was preparing to speak today. I was looking at the “Report of the Aboriginal Justice Inquiry” of Manitoba, which came out in 1991. It's a very extensive report, and that was over 30 years ago.
The commissioners write in that report that they were moved by the situation of indigenous women and noted that they “suffer double discrimination: as women and as [indigenous] people; as victims and as offenders.” When speaking with women in the system, the commissioners of this report write that they were “convinced by [the] arguments of [indigenous] women that a restoration of their traditional responsibility and position of equality in the family and community holds the key to resolving many of the problems [they] have identified.”