Extinction Rebellion activists have accused NSW Police of being politically motivated in their "brutal" handling of climate protests, with one young woman saying "How dare you keep me locked up".
NSW Greens MLC David Shoebridge on Wednesday said the courts had rejected the strict bail conditions police tried to impose on some protesters who were detained on Monday.
Mr Shoebridge was joined inside NSW parliament by three arrested activists, including a student who was held in custody for almost 30 hours and a grandfather sporting a large bruise on his side which he attributed to being dragged from the road by officers after he refused to leave when asked.
All three activists were charged with failing to comply with police directions.
"It's time the police stopped acting brutally against protesters," the Greens MP said.
"It's time they stopped using deliberate pain management techniques to cause harm and deliberate harm on protesters. It's time they stopped the aggressive use of bail conditions to try and break up peaceful protests."
More than 40 activists have been detained in the city this week with many saying they were willing to risk their liberty in order to bring climate issues to the fore.
Former Greens senator Scott Ludlam - who was arrested on Monday - has said it's "wild" that he's banned from taking part in further Extinction Rebellion events and can't be within a 2.5-kilometre radius of Town Hall.
Lily Campbell, 22, from Ashfield, said her bail conditions - similar to those of Mr Ludlam - were not upheld in court because the charge of refusing to comply with a police instruction was so minor.
In an impassioned speech echoing teenage climate campaigner Greta Thunberg's address to the UN in September, Ms Campbell said: "I say to the NSW Police 'How dare you keep me locked up for more than a day for speaking up for young people everywhere in the wake of the climate emergency'."
Mr Shoebridge said Ms Campbell's proposed bail conditions were unusual and "very clearly politically motivated".
PhD student Tom Colley, 57, from the Blue Mountains said he had been manhandled by police and suffered a sprained wrist, while 75-year-old Martin Wolterding said he felt intense pain when he was moved from the road by officers.
The environmental scientist, who also lives in the Blue Mountains, showed reporters his bruised side and swollen wrist.
Police top brass have previously said their officers acted professionally in dealing with the protests.
Assistant Commissioner Mick Willing on Tuesday said while the force respected the right to protest, officers would "continue to deal with any people who flout the law and cause disruption".
Meanwhile, fears activists would disrupt Sydney's rail network on Wednesday proved unfounded, following two days of demonstrations which saw some roads and traffic blocked.