Shane Martin, the ex-bikie boss and father of AFL star Dustin Martin, was issued a certificate confirming his Aboriginality by the Aboriginal Corporation of Tasmania in December 2016, putting further pressure on the federal government to allow him to return to Australia in the wake of the High Court's decision that Aboriginal people cannot be deported.

The Sydney Morning Herald and The Age can reveal that Mr Martin, his three sons including Dustin and his brother were all issued with certificates confirming their Aboriginal genealogy in December 2016.

Dustin Martin's father Shane has failed in his latest bid to re-enter Australia after being deported.

The corporation has confirmed Shane's grandmother was an Indigenous woman living in Tasmania before moving to New Zealand, elder Lance Le Sage said.

The corporation looks at a combination of documentary evidence and oral history, Mr Le Sage said, then decides whether to confirm Aboriginality based on the person identifying as Aboriginal, ancestry research and whether they are accepted by an Aboriginal community.