He has always refused to tell police where Niethe’s body is, but admitted he injected Niethe with methamphetamine on March 30, 2003, causing her death.
Pakenham was sentenced to six years and seven months in prison and refused parole repeatedly until he was finally released in 2016.
The Herald has learned that Niethe’s family have now commissioned a new search for her body.
A search was meant to go ahead on January 27 but was postponed due to the weather.
A team is currently working in an area at Kaihere, a small rural settlement that overlooks the Hauraki Plains.
It is near where Niethe was last seen at Pakenham’s home.
The search is being run by private investigator Bruce Currie on behalf of Niethe’s family.
The search has been described as covering a “substantial” area and over the last few weeks and days Currie and Niethe’s family have been asking for people to come and help, provide food and assist with traffic management.
The search is being carried out by Land Search and Rescue and volunteers. Police are not involved.
It is due to wrap up at 4.30pm today.
“After three years of planning, overcoming barriers along the way but with the full support of the wider community, the private search for Sara Niethe happens tomorrow,” Currie posted on his Facebook page Mr Tracer yesterday.
“Let’s bring Sara home.”
Last month Currie sought help to access “historical aerial photographs of the Kaihere District taken around 2003 when Sara was killed”.
“The community support for finding Sara continues to amaze me, you are all truly heroes for not accepting the status quo, we can find Sara and bring her home,” he wrote.
When Pakenham was sentenced for Niethe’s manslaughter, the court heard details of her last hours.
On the day she died, Niethe went to Pakenham’s house and the couple drank bourbon, smoked cannabis, and had sex.
Pakenham later told police the couple had an argument and Niethe left in her mother’s car.
But it later emerged Pakenham injected Niethe with the then class B drug methamphetamine.
In recordings police took of Pakenham talking to an associate in 2009, he admitted to giving Niethe a “shot of meth”.
The judge said he accepted Pakenham was under the influence of drugs and in shock when he hid Niethe’s body - but noted Pakenham composed himself enough to return her sunglasses, phone and cigarettes to Niethe’s youngest daughter the next day.
“You still did not tell the family or the authorities.”