Former NT teen inmate Dylan Voller wants to shut down the Sydney Harbour Bridge as part of a a national day of action to protest against youth detention.

Scott Morrison has announced a $78.5 million schools funding sweetener for the NT during his first visit to Darwin since becoming treasurer two years ago.

An NT Independent Commission Against Corruption will probe dodgy politicians, public servants, judges and police from early next year, the government says.

The NT needs an independent inspectorate model for its juvenile detention facilities to prevent failings like the Don Dale scandal, an inquiry has heard.

A permanent team based in the national capital tasked with securing job-creating defence projects for the NT will be led by Air Vice Marshal Margaret Staib.

Aboriginal people in remote communities are being unfairly and disproportionately penalised under the government's work for the dole scheme, advocates say.