Multi-millionaire businessman and one of Australia's most feared corporate raiders Sir Ron Brierley has been charged for alleged possession of child pornography.

Key points: Sir Ron Brierley founded one of New Zealand's biggest investment firms

Sir Ron Brierley founded one of New Zealand's biggest investment firms He was allegedly found with child pornography on his laptop at Sydney Airport

He was allegedly found with child pornography on his laptop at Sydney Airport The 82-year-old was granted conditional bail and will continue living at his Point Piper mansion

The 82-year-old investor was arrested at Sydney International Airport after being stopped by Border Force officials as he was attempting to board a flight to Fiji.

NSW Police have been investigating the matter since August after an anonymous tip-off from a member of the public.

The financier was allegedly found with a "large amount" of child pornography images on his laptop when detectives seized his carry-on luggage about 6.30am yesterday.

Mr Brierley, who is a former trustee of the Sydney Cricket Ground Trust, was taken to Mascot Police Station where he was charged with six counts of possessing child pornography.

The New Zealand-born businessman was given strict conditional bail, including that he continue living at his Point Piper mansion, and is due to appear before the Downing Centre on February 10, 2020.

Sir Ron Brierley's Point Piper home. ( ABC News: Rani Hayman )

With no capital, Sir Ron founded R. A Brierley Investments in 1961, which grew to become one of New Zealand's biggest companies.

In 1988, he was knighted for his "services to business management and the community".

Mr Brierley mentored many Australian business leaders, including BHP director Malcolm Broomhead and the co-founder of Afterpay, Anthony Eisen.

Mr Brierley stepped down from his last role in a listed company in June this year when he retired as chairman of Mercantile Investments.

"Due to age and health issues, I can no longer give the total commitment to the company which it requires and which shareholders deserve," Mr Brierley said in a statement to the Australian Stock Exchange earlier this year.