Convicted killer Susan Neill-Fraser has spoken in-depth for the first time since a media gag order was scapped, indicating her fight to clear her name is far from over.

The 72-year-old grandmother was released on parole in 2022 after serving 13 years’ jail for murdering partner Bob Chappell in 2009 on their yacht in Hobart’s River Derwent.

She was found to have attacked Mr Chappell on their yacht and then dumped his body, which has never been found, overboard.

A murder weapon has also never been found.

Neill-Fraser has maintained her innocence but multiple appeals against her conviction have failed.

In an interview with 60 Minutes aired on Sunday night, Neill-Fraser said she was “placing herself at risk” by speaking publicly and had received death threats since being released.

“Sitting with a wrongful conviction is like having an infected thorn in your mind. It’s there all the time,” she said.

“But you can’t remain quiet about this sort of thing.”

In September, a parole condition preventing her from speaking to the media was dropped after her legal team found it had been based on fake case law contained in an AI-generated report.

She maintained her innocence during the interview, but said she “told one lie” to police relating to her whereabouts on the night of the murder.

She went to Sandy Bay, the suburb where the yacht was moored, because she was worried about the mental health of Mr Chappell’s daughter, but didn’t want to air her struggles to police.

“But not in any sense of … trying to avoid responsibility for doing something wrong,” she said.

Neill-Fraser maintained she last saw Mr Chappell when she left the yacht after a conversation with him about electrical wiring.

“I said, ‘goodbye, I’m going back now’. And he said, ‘yes, yes’,” she said.

Mr Chappell was likely killed during an “escalated” argument with inebriated young people who came aboard the yacht, she said.

Human Rights Law Centre legal director Sarah Schwartz worked on Neill-Fraser’s challenge to the parole decision.

“My understanding is Sue is now bringing together a legal team in relation to her criminal matter,” she told AAP.

“One thing that we brought attention to in this case is that wrongful convictions do happen and that there are avenues for individuals to challenge wrongful convictions.”

Challenges can occur through criminal legal process if there is fresh evidence or the establishment of a criminal review commission or a commission of inquiry, Ms Schwartz said.

Neill-Fraser’s supporters, including federal MP Andrew Wilkie, claim there were flaws in the police investigation.

Tasmania’s government has repeatedly ruled out setting up an inquiry into the matter.

The state’s police association on Monday said it had confidence in forensic specialists, prosecutors and those involved throughout this matter.

Neill-Fraser’s two appeals and an attempt to bring the case before the high court have failed, with judges ruling there wasn’t any fresh and compelling evidence.

One appeal centred around accounts provided by a homeless teenager Meagan Vass, who said she was aboard the yacht with men who assaulted Mr Chappell.

Ms Vass, whose DNA was found on the yacht, changed her story to say she was never aboard. Her evidence was eventually abandoned during the appeal.