That's a complex question. Ngarrindjeri are a community of people who identify as Ngarrindjeri, and share similar laws, histories, backgrounds, language and particular connections to the country. In a way, Ngarrindjeri is a bit like a federation. It's a collection of what used to be groups that share similar kinds of histories, traditions and values.
In the Australian context, up until the first Kungun Ngarrindjeri Yunnan agreement in 2000-01, Ngarrindjeri were not formally recognized by the state or by the overall nation. Native title had come in 1992 as a possibility, so first nations or communities, or what are sometimes called tribes, could apply for recognition under Australian legislation, but their native title had survived colonization and the impacts of other titles. When someone wins a native title, that's really just a recognition that you've survived colonization, and you still have a society intact, and some of your rights and interest to country on some titles in your country.
For Ngarrindjeri, the effect of native title is really only on some parcels of land where native title hasn't been extinguished, and on the waters, riverbed and some other areas, but that's very early stages in working out what that really means.
There's also heritage legislation, which recognizes that aboriginal people have special interests in pieces of country, or water, relating to their cultural heritage. That also draws in issues, but it's very different from the Canadian situation and the U.S., in terms of rights. In other parts of Australia, there is land rights legislation where people are able to apply for land rights—