Cops were seen beating, pushing and pepper-spraying people in Sydney after a protest against Israeli President Isaac Herzog's Australian visit on Monday.
The NSW police commissioner has defended the actions, with Premier Chris Minns maintaining officers were put in a difficult position as they were instructed to clear the protesters.
But members of the Greens say the situation would never have devolved if the government had not given the police the ability to restrict protests, and will introduce a bill to repeal those powers on Thursday.
"Facilitating a march would have been excellent policing ... because there was no where for anyone to go - they were trapped," Greens MP Sue Higginson said.
Laws rushed through parliament after the Bondi terror attack allowed police to make a declaration that prevents residents from seeking authorisation for rallies in key areas, leaving participants vulnerable to arrest for marching through the streets or obstructing traffic.
As a result, Monday's protest was a static gathering.
But when the event concluded, demonstrators - some of whom only wanted to leave - could not move as police tried to stop the whole group from marching.
Officers soon began unleashing pepper spray and rushing at the crowd.
Street medic Omaim Al-Baghdadi was wearing a vest identifying herself as medical personnel when police arrived.
"We were trying to explain that we were doing treatments, but that didn't really register, so we got pushed and pulled," she told AAP.
"At the planter boxes, I found people laying down that were also injured, so I tried to commence treatment there, but again police came and pushed us quite violently."
That night, she treated other medics who had been caught in police tear gas while coughing up her own lungs.
Riley Brooke initially attended the event as a protester and was in the middle of applying first aid before attracting the attention of police.
"I was fully backed against the wall with my hands up and one hand on a water bottle, I think saying, 'I'm just flushing eyes out, I'm not in the protest anymore, I'm just doing first aid," they told AAP.
"They didn't even slow down.
"One yanked me and threw me, and I fell flat down on the ground."
Five people were hospitalised after the protest and 27 were arrested with nine facing charges.
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