"There is clear evidence of a pattern of behaviours associated with risk of both psychological and physical harm particularly associated with long-term relationships and his need to control and manipulate those situations."
The Herald revealed in May that Bennett was recalled to prison by the Parole Board after his probation officer said he posed an undue risk of harm to his second wife "as a result of relationship difficulties between them".
The officer also said Bennett failed to disclose an allegation of assaulting his wife in April 2007.
According to the most recent Parole Board report, two psychologists assessed Bennett and came to different views on the convicted murderer and his risk of further reoffending. One deemed him at low risk, the other at moderate risk of serious violence.
The Parole Board rejected the view of the psychologist who thought Bennett posed a low risk to his second wife, as that view was formed without all the information given to the second psychologist.
The second opinion said Bennett had "aggressive narcissism" personality traits, which include superficial charm and lack of remorse.
The Parole Board noted Bennett's lawyer at his original murder trial in 1994 told the jury that he was "deceitful and manipulative and a jealous and possessive husband".
The board said: "Current information suggests these risks remain present".
Releasing Bennett without "undue risk" would be possible only when he understood the aspects of his personality that "contributed to his perpetrating the murder of his first wife and victimisation of subsequent intimate partners".
Bennett was recalled to prison last April after an incident in February when his wife, a Red Cross co-ordinator for Meals on Wheels in Christchurch, gave her cellphone number to a man in an Auckland bar.
However, Mrs Bennett has visited him in Rolleston Prison, a minimum-security facility in Christchurch, most weekends since his arrest and supported him at the Parole Board hearing last month.
In 1982, the Air Force crewman told police investigating the disappearance of his first wife that she had left him.
But he killed her when she threatened divorce, buried her in Woodhill Forest, then concocted an elaborate cover-up story.
The Crown said Bennett had a deliberate plan to elude police, feigning shock and making it appear that Mrs Bennett was at home on the night of the murder. He also left a bogus note for her pleading with her to come back.
Three months after the killing, Bennett returned at night to dig up the body and rebury it in a deeper grave.
He was the prime suspect but police could not find Mrs Bennett's body.
In 1992, an associate of Bennett contacted police to say he had boasted that her body would never be found. Bennett was arrested and later led detectives to the grave deep in the forest where he had reburied his wife.
He admitted manslaughter, claiming the death was accidental. But he was found guilty of murder after a trial in the High Court at Auckland.