Ailing multi-millionaire Ron Brierley has been released from Sydney's Long Bay jail after having his sentence cut for possessing child abuse material.
The New Zealand investor's legal team challenged his term earlier this month, citing a deterioration of his medical conditions.
The 84-year-old was jailed in October for 14 months with a non-parole period of seven months, which was due to expire on May 13.
However he was deemed eligible for release three months earlier after the NSW Court of Criminal Appeal allowed the challenge on February 1.
Justices Robert Beech-Jones, Ian Harrison and Des Fagan re-sentenced Brierley to 10 months with a non-parole period of four months.
Noting Brierley's declining health, his barrister Tim Game SC particularly referred to the inability of the jail's medical services to deal with the aftermath of the removal of skin cancers from his leg.
While a dermatologist said he needed to be hospitalised for three weeks after surgery which included a skin graft, he was returned to his cell on the same day.
Despite the need for dressing changes on his large wound, Brierley had to rely on help from another inmate and the stitches broke.
The former high-profile corporate raider pleaded guilty to three counts of possessing child abuse material found on devices in his airport luggage and at his home in Sydney's harbourside Point Piper.
Brierley possessed more than 40,000 images, many being duplicates, of prepubescent girls in swimwear, underwear or other clothing, in sexually suggestive poses.
He also had two sexually explicit stories involving child victims and an image of a naked girl posing on a bed.
The charges led to his being stripped of his knighthood and his name erased from the many organisations he helped.