A Malaysian man sprung delivering heroin at Melbourne's Immigration Museum on behalf of an international syndicate has been jailed.
Beng Goh says he's seen the light and has become a "new person who is more sensible" since being caught.
The 44-year-old was jailed in Victoria's County Court on Wednesday for up to six years.
He was one of seven main players charged over the syndicate that got Malaysian cabin crew to hide heroin in their underwear.
It was run by Melbourne-based Michelle Ngoc Tran, also known as the "Queen of Richmond".
Goh arrived in Melbourne on January 4 last year with two associates and on the same flight as a Malindo Air hostie smuggling the drugs.
Four days later, Goh delivered 784.2g of pure heroin as instructed to the museum for collection.
He was arrested just as he was about to receive $150,000 his troubles.
The associates he'd travelled to Australia with ditched him and returned to Malaysia.
Goh went on to plead guilty to trafficking a marketable quantity of heroin.
His lawyer sought to downplay Goh's role as one of a mere courier.
He had been a successful businessman back in Malaysia, after setting up a medical equipment manufacturing company that went on to win a government award.
With that success came conceit as Goh became seduced by a high-flying lifestyle, the court was told.
But it remains unclear why he ended up delivering heroin for an international syndicate.
"The risk you took was very high. You have offered no explanation for your involvement," Judge Michael Cahill told him.
In an apology letter to the court, Goh said prison had taught him humility and that he'd become a "new person who is more sensible".
He threw himself into drug and alcohol education programs and jail authorities noted he appeared driven to better himself.
His family believed he was still a good man and wanted him home.
"While in prison you really could have done no more to advance your reformation," Judge Cahill acknowledged.
Goh must serve three years before he can be considered for release on parole.
The 21 months he's spent in custody since his arrest will count towards his jail time.
Other syndicate members, including Tran, are awaiting sentence.