A special Brisbane court will operate around-the-clock during the G20 to handle potential mass arrests.
The court will begin on November 10, five days before the start of the world leaders' summit, which is expected to attract protesters from around the world.
A Justice Department spokeswoman told The Courier-Mail those arrested under strict new laws would be transported to a special processing centre to receive legal advice before appearing before a magistrate.
The strategy mirrors that used by Toronto police in 2010 when more than 1100 people were arrested and taken to a special processing centre.
The move comes amidst fears one of the groups responsible for violent protests in Toronto may travel to Brisbane for the summit.
Associate Professor Janet Ransley, who heads Griffith University's School of Criminology and Criminal Justice, told the Brisbane Times on Tuesday there had been evidence that the high-profile Black Bloc anarchist protest group is using social media to organise a presence in the Queensland capital.
"I think it would be naive to think that Black Bloc and some of those groups are not mobilising," Professor Ransley said.
Black Bloc is an association of anti-capitalism protesters that began in Europe in the 1980s.
Clad in black and disguising their faces, members are believed to have been responsible for setting police cars alight and smashing bank windows during Toronto's G20.
Police have asked groups to register their protests, but acknowledge some will ignore this request.
They have indicated they will take swift and decisive action against protests that threaten public safety and infrastructure.
To help control protesters and protect leaders, authorities have designated a number of declared and restricted zones around the CBD and surrounding suburbs.
The area around the Brisbane Convention and Exhibition Centre will be central to the summit and a sophisticated security operation, governed by the G20 (Safety and Security) Act 2013, which was passed in October 2013.
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