New Zealand's most prolific serial stalker will be freed from jail next month and tracked by GPS after concerns from the Parole Board over his "appalling record" and the threat he still poses to public safety.

Glenn Green has been jailed 45 times and suffers from erotomania - believing someone, usually a stranger or high-profile person, is in love with them.

Green, who uses several aliases, has 201 convictions spanning 26 years.

They include criminal harassment, perverting the course of justice, breaching protection orders and misuse of a telephone.


Green is to be released on June 7 after completing a 30-month prison sentence for criminal harassment.

He becomes fixated on women he sees on the street or in magazines, and harasses them by writing "abusive" and "frightening" letters and text messages, calling them and sitting outside their homes, and there are fears he will reoffend.

He was earlier denied parole because he was deemed a risk to the community.

He met the Parole Board this month and release conditions for six months after his release were determined.

The Parole Board, in its decision from that hearing on April 17, said that despite the significant threat Green posed, the board could impose conditions to mitigate that risk for only six months following his release.

In announcing the conditions today, the Parole Board noted Green did not have a release address but he would be prevented from living in or north of Auckland and would also be tracked using electronic GPS monitoring.

A parole assessment report prepared in March included a number of proposed release conditions but the board said it now had a further lengthy memorandum from Corrections dated April 11.

"That outlines the concerns for Mr Green following release. Reference is made to documentation found in his cell on at least two recent occasions, which indicates planning on Mr Green's part for activities, which again raise concerns for potential victims of his harassing type behaviour.


"On any measure the risks relating to Mr Green's release are high. He poses a significant threat to public safety. The board can only impose conditions best calculated to address those risks for the six months following Mr Green's sentence end date," the board said.

Of particular concern were the potential risks posed if Green was able to access the internet and other technology and the board imposed conditions that would prevent that.

Release conditions include:
* Not to have contact or otherwise associate directly or indirectly with previous victims without prior written approval of a probation officer

* To remain south of a boundary from the west coast to the east coast of the North Island at Auckland, formed by Church St, Onehunga and the South Eastern Highway to the Waipuna bridge. Not to travel to the east of State Highway 1 from Otahuhu to Manurewa identified by Alfriston Road and continuing to Maraetai along Whitford Park Road

* To submit to electronic monitoring as directed by the probation officer in order to monitor compliance with conditions

* Not to have contact or associate directly or indirectly with anyone identified by Probation

* Not to possess or use any electronic device capable of accessing the internet or capturing storing, accessing or distributing images (including personal computers, notebooks, tablets or cell phones) without written approval

* To allow a Probation officer or police officer to check the contents of any hard drive, computer, phone, or any other electronic devise in his possession.

* Not to have social media accounts in his name or any alias including Facebook, Twitter, lnstagram and others identified by Probation

* Not to possess or use devises capable of covert surveillance

Green was denied parole in October 2012 because he presented an "undue risk to the safety of the community" and had "an absolute disregard for court orders".

He waived his right to appear at a second hearing last October, when the board recommended that he have individual psychological treatment to address his risk and to develop a safety plan.

In November 2011 he "maliciously targeted and preyed on" a 19-year-old victim in a way that was labelled "abusive, sinister, threatening and frightening" by Judge Pippa Sinclair.

The victim's mother changed the home phone number but Green conned the victim's elderly grandfather into giving him her new number.

Although the young woman was never physically harmed, the "persistent and constant" harassment caused her and her family extreme distress and concerns for their safety. She moved to another town.

When Green was arrested, police found photos of the victim on his phone.

In December 2011, Green sent a second victim more than 250 text messages over six days under a fictitious identity.

During his sentencing, Green's lawyer, Geoffrey Anderson, said his client was a "very lonely person who probably craves contact and friendship but has little ability to develop them in a healthy way that is mutually satisfying".

He also had little support, no coping skills and he felt overwhelmed when released into the community.