UPDATED 7:25am: An appeal may yet come from Mark Lundy's defence team.

A second jury has found him guilty of the murders of his wife and daughter in Palmerston North in 2000 after 16 hours of deliberations.

Mark Lundy, who's spent 12 years in jail, goes back behind bars to continue serving his 20 year minimum non parole life sentence.

Steve Bonnar QC says his pleas of innocence will be a factor for the Parole Board when he comes up for parole.

"The principal fact of the Parole Board looks at safety of the community, whether someone has been rehabilitated, whether someone accepts their guilt."

"The Parole Board will consider whether he accepts his guilt when it comes to his release."

AUDIO: Steve Bonnar on KPMG Early Edition

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Otago University law lecturer, Marcelo Rodriguez-Ferrere says even though the Crown changed a major detail - the time of death - this jury reached the same verdict as the first jury.

"Now being two series of the case put forward. both seem to have allowed a jury to find him guilty beyond reasonable doubt. That seems to indicate that the crown has a sort of fairly good case."

However, Rodriguez-Ferrere points out Lundy can take the case to the Court of Appeal as he did after his first trial.

"Essentially, once his conviction was quashed and a new trial was ordered, everything is reset so it's essentially as if no trial had ever occurred in the first place."

AUDIO: Marcelo Rodriguez-Ferrere on the Mike Hosking Breakfast

Lundy's legal team refused to comment outside court about a possible appeal.

Meanwhile, the verdict is being seen as a win for police.

Greg O'Connor says police have copped unnecessary flak over their investigation for a number of years.

"There have been accusations levelled at the prosecution team particularly the police. None of them have been upheld and now fortunately the jury has found Mr Lundy guilty."

O'Connor, says a second guilty verdict shows police had the right man, and worked hard to bring him to justice.

"I think there is no doubt Lundy is where he deserves to be, in prison."

O'Connor says police should feel vindicated by the verdict.