An avowed Neo-Nazi leader has made a second bail bid after allegedly leading a group attack on an Aboriginal protest site, with his fiance putting up $20,000 to secure his release.

Thomas Sewell, 32, raised his right hand to photographers as he was brought into Melbourne's Supreme Court from a prison van on Wednesday morning.

The leader of white nationalist group National Socialist Network sat in the dock, with his partner and eight others attending court to support him.

Sewell hired top barrister Dermot Dann KC to fight for his release a second time after his first bail attempt was rejected by a magistrate in September.

He has been charged with dozens of offences related to the August 31 Camp Sovereignty attack, including violent disorder, affray, discharging a missile and assault by

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