The woman at the centre of an internal police investigation after she was captured in footage being pushed to the ground by a police officer in Western Australia's north has been revealed as the young star of epic 2002 drama Rabbit-Proof Fence.

Video of the incident — which has been widely circulated online — showed Everlyn Sampi being pushed to the ground by a police officer following an incident in Broome.

Ms Sampi, 37, starred in the critically-acclaimed Phillip Noyce film — based on real events — as Molly Craig, a child of the Stolen Generation.

The role earned her the best actress honour at the 4th Annual Lexus Inside Film Awards.

The Broome resident said she was considering legal action against the officer who allegedly pushed her to the ground in a Broome cul-de-sac on Tuesday night, leaving her suffering considerable injuries.

Ms Sampi's mother, Glenys Sampi, had initially phoned police for assistance on Tuesday afternoon after becoming concerned about a relative's allegedly aggressive behaviour.

The situation escalated after police arrived just before 6pm, with the male relative eventually handcuffed on the ground, with "two cops on him", Glenys Sampi told the ABC.

She said her daughter was attempting to get the police officers off their relative when another officer "pushed her real hard, where she had a fall and nearly cracked her head".

Footage shot from a distance showed Everlyn Sampi beside three officers who were restraining a man.

In the video another officer arrives on the scene and walks towards Ms Sampi before pushing the actress, causing her to hit the pavement.

The officer then approaches a group of bystanders while Ms Sampi gets up off the ground.

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During a inaudible verbal exchange, Ms Sampi is seen standing near the police officers restraining the man, before the officer who pushed her approaches again, before pushes her away.

The incident has led WA Police to launch an internal investigation.

In a statement they allege Ms Sampi was hindering police as they were responding to the incident.

"[The woman] allegedly interfered with police while they were performing their lawful duties, grabbing officers from behind as they managed a violent situation," WA Police said in a statement to the ABC.

"Additional officers attended the scene and pushed the woman away, causing her to fall to the ground."

Everlyn Sampi said she was concerned at the actions of police against her relative, who has a mental health condition and was being restrained.

"He was trying to fight back, but he was handcuffed," she told the ABC.

"I was like, 'Hey, what's wrong with you? Get off him' and I was trying to get them off him and they were telling me to leave him alone, let us do our job.

"They don't have to be like that."

WA Police alleged the man became aggressive and assaulted two officers who reportedly sustained minor injuries.

Everlyn Sampi claimed another officer threatened to arrest her as she tried to intervene.

"Then he just pushed me, he pushed me pretty hard, because I flew from a metre away and nearly hit my head on another vehicle with a towbar," she said.

Her elbow and back were injured in the incident, however WA Police said she did not report any injuries.

The actress said she thought police responded inappropriately to the incident.

"Four or five other paddy wagons pulled up, just for one person... and not that he had any weapons or any guns or anything like that, so that was terrible," Everlyn Sampi said.

WA Police have since charged her with two counts of obstructing public officers and possessing drug paraphernalia.

The male relative — a 39-year-old from Millars Well — was charged with two counts of assaulting a public officer and was remanded in custody on Wednesday until his next appearance on Friday at Broome Magistrates Court.

Everlyn Sampi will appear before the same court on April 20.

Police Minister Reece Whitby — who had yet to view the footage — said he was aware of the internal police probe on the incident, saying officers had "certain responsibilities and obligations in the way they conduct themselves but also they're on the front lines".

"So it's not an easy job but they still need to ensure they do it in the right way," Mr Whitby told the ABC on Thursday.