In many parts of Australia, Aboriginal community leaders want more control over local decision-making.

They say it's a race against time to start reversing decades-old crises of substance abuse, incarceration, crime and joblessness.

Often, community leaders point to existing examples of self-determination.

So what are those models delivering?

Today on The Signal, we travel to the communities on Groote Eylandt, off the east coast of Arnhem Land.

How does self-determination work there?

And could the same strategies be adapted elsewhere too?

Featured:

Jane Bardon, ABC reporter

Tony Wurramarrba, Chairman, Anindilyakwa Land Council

Glen Smith, General Manager, Gebie Civil and Construction

Nesman Bara, Board-member, Aminjarrinja Enterprises

Daniel Ngurruwuthun, Artist

Constantine Mamarika, Traditional owner

Ida Mamarika, Umbakumba Elder

Fabian Lalara, Senior Mentor Supervisor, Gebie Gang

Donovan Wurramara, Gebie Gang participant

Jasmine Hastings, Leadership officer, Milyakburra Strong Women's Group