Topia Rameka was reportedly the subject of complaints from female employees.

Now, four years later and the controversial charge is back before the court.

The Australian Tax Office has blamed influencers on social media platform TikTok for promoting a scam that netted at least $1.2 billion in fake GST claims.

The scam involved people acquiring an Australian Business Number before registering a fictitious business via their MyGov account.

Fraudsters would then submit a fake business activity statement, claiming they had spent a huge amount of money to set up the company, before applying for a 10 per cent GST refund from the tax office.

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The ATO launched Operation Protego in April last year to pursue the fraud, which led to a series of raids across Melbourne, Sydney and Brisbane.

Federal police arrests have since led to the convictions of 10 fraudsters, with compliance action taken against more than 56,000 thousand people.

The ATO said it has prevented another $2.7 billion in attempted fraud.

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Australia's richest person, Gina Rinehart, devised an "egregious" seven-step scheme to defraud her children and lie about it, a trial over billions of dollars in iron ore riches has been told.

A lawyer for Rinehart's children said there is clear evidence mining licences were unlawfully transferred to Hancock Prospecting and a subsidiary against her father Lang Hancock's wishes after he died in 1992.

"We don't use the word fraud lightly," lawyer Christopher Withers SC told the Supreme Court trial over mining assets and royalties in Western Australia's north-west on Monday.

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Withers accused Rinehart of exploiting a joint venture agreement with Hamersley Iron to move Hope Downs and East Angeles tenements.

He said she devised a seven-step fraud scheme that allegedly started two months after her father died, with the "Roy Hill diversion" to avoid accruing capital gains tax or stamp duty liability.

"We say the evidence that fraud was perpetuated by Gina on her children is overwhelming," he said, referring to a long-running family feud that is also in arbitration in the Federal Court.

Withers said the action was contrary to Lang Hancock's intentions for Rinehart's eldest children, John Hancock and Bianca Rinehart, to benefit from the assets via a trust.

Under a 1988 agreement penned by Lang Hancock, the children were to be the principal benefactors of his efforts to develop an iron ore mine at Hope Downs and 49 per cent shareholders in Hancock Prospecting.

"Lang was simply not prepared to give Gina everything she wanted, which was everything," Withers said.

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"He wanted to put in place arrangements that would provide for his grandchildren."

Withers said Rinehart "deliberately destroyed" the arrangement after Lang Hancock died through a series of transactions that increased her shareholding at the expense of her children.

"The events after Lang died constitute an egregious fraud orchestrated by Gina and carried out by people who did whatever Gina wanted without questioning," he said.

He said the actions were "covered up" with a "false narrative to her children and the public generally that (Hancock Prospecting's) and her personal success was simply a product of hard work rather than dishonesty".

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Withers said the false narrative was that Lang Hancock dishonestly breached his fiduciary duty and mismanaged Hancock Prospecting, which "Gina had to clean up".

"The truth is Lang discovered the mining areas in the Pilbara. He was the driving force behind the decision to start a mine, which Gina was against," he said in reference to Hope Downs mining complex that Rinehart's company and Rio Tinto operate.

Withers said she lied to her children about her actions and threatened John Hancock and his lawyers when they attempted to investigate the matter.

The claims were made in a high-stakes legal stoush in Perth in which Rinehart's company and her children are defending the claims of Wright Prospecting and DFD Rhodes, with Bianca Rinehart in court on Monday listening to her barrister.

Wright Prospecting has demanded a share of some Hope Downs tenements and royalties amid a claim that it never relinquished the assets and Hancock Prospecting has breached a series of partnership agreements.

The family company of the late prospector Don Rhodes, DFD Rhodes, says it is entitled to 1.25 per cent royalty share of the Hope Downs production.

It claims a deal was struck in the 1960s with Mr Hancock and Mr Wright in which the rights to ore-rich reserves in the Pilbara were handed over.

The Hope Downs mining complex near Newman is one of Australia's largest and most successful iron ore projects, comprising four open-pit mines.

Rinehart, the executive chair of Hancock Prospecting, secured the development of the mines after signing a deal in 2005 with Rio Tinto – which has a 50 per cent stake in the project.

Hancock Prospecting last week accused Lang Hancock of breaching his fiduciary duties by diverting tenements without disclosing the moves to Rinehart.

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She allegedly smiled as the assault unfolded and stopped a person from intervening.

The policy is being widely panned by experts, who say it is betting on voters’ ignorance.

A young man has died after he was caught in a rip at a popular Sydney beach earlier this month.

Robin Kadyan, 22, was swimming with a group of people off North Curl Curl beach, on the city's Northern Beaches, when he was pulled out to sea.

He died in hospital on Friday, police said today.

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He battled for his life over several days, but he had "irreversible" brain injuries, according to a fundraising web page founded to raise money for his funeral in India.

The rescue operation during the incident on August 6 involved members of the surf life saving club, Water Police and local police.

Five helicopters were also part of the rescue effort. 

Two men and a woman had made their way out of the water when police arrived at the beach.

Kadyan was winched unresponsive from the sea by the Westpac Life Saver Helicopter.

An onboard doctor gave him CPR before he was taken to hospital in a critical condition.

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Surf life savers in an inflatable rescue boat also pulled a 21-year-old man from the water.

A report will be prepared for the Coroner.

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It comes as reported cases and hospitalisations have been trending up in past two weeks.

The doctor who blew the whistle on a hospital death claims the case was covered up.

‘We just want our land back and then we’ll go away’ – Rangatira Rore Stafford