Rakiba Rakiba was found guilty at trial of illegally smuggling a boatload of asylum seekers to Australia in 2012.

An ACT Supreme Court jury took about 25 minutes to find the 70-year-old fisherman guilty for his role in the voyage from Indonesia. Justice Richard Refshauge sentenced Rakiba to two years and two months in jail, backdated to take into account time already spent in custody.

But the judge released Rakiba immediately upon him entering a two-year good behaviour order with a $600 security.

Rakiba was taken into custody by Immigration officials after the court proceedings and will be deported to Indonesia.

He is the last of five Indonesian men hauled before Canberra courts on charges of people smuggling.

Commonwealth prosecutors quietly dropped charges against Imran Hafid and La Bahrudin La Bahrudin, and the pair were subsequently deported in 2012.

Last year, Rakiba's two fellow crewmen, Toni Kaubulan and Ode Basirun, were also sent home after pleading guilty to the offence.

But Rakiba remained in Canberra jail after maintaining pleas of not guilty.

In a strange twist during the trial, Rakiba seemingly confessed he illegally brought the boatload of asylum seekers to Australia. Rakiba, from the witness box on Tuesday, told the court he had been promised about $1900 to ferry the 25 Bangladeshis and Burmese asylum seekers to Australia in 2012.

Under cross-examination, he admitted he knew the trip had been illegal but the lure of more than a year's income had driven him to break the law.

Rakiba told the court he was never paid the entire fee.

He was part of a three-man crew who picked up the shipwrecked asylum seekers from an uninhabited Indonesia island and brought them to Australia in June 2012.

The court heard the asylum seekers spent about 20 days stranded on the island, dependent on supplies of food and water brought by other boats, after their first boat sank.

Rakiba, through an interpreter, admitted he had been sent to pick the castaways up and they were ''half dead'' when he arrived. He also confessed he had piloted the fishing boat to Ashmore Island, where it had been intercepted by Australian authorities.

The case was heard in Canberra because people smuggling prosecutions can be brought in any Australian jurisdiction under a national agreement aimed to take pressure off the judicial systems of the northern states and territory.