The 66-year-old was released to a house outside Whanganui Prison grounds last August, subject to 17 strict release conditions.
But following his release, Wilson contacted a woman referred to in court documents only as Ms A who had been in contact with Wilson for seven years while he was at Christchurch prison.
On November 27, Wilson was issued with a written direction from community probation not to associate with her, via phone contact, text message, writing letters, or through a third party.
But last Christmas, she sent him a gift and on February 17 he phoned her at home.
Worrying details about that illicit phone conversation have emerged in High Court judge Justice Alan MacKenzie's judgment throwing out Wilson's recall appeal.
Wilson thanked the woman for her Christmas present and also asked her about surgery she'd recently undergone.
He also told her he had a secret cellphone with internet capabilities that Corrections staff didn't know about.
When community probation found out about the call, police interviewed her.
She told police that in previous phone conversations, Wilson had "talked about how he wanted to take her to Australia, how he always had $1000 in his back pocket, and how it was easy for him to break his bracelet off and run away".
His parole officer immediately applied for a recall order, which was granted by the Parole Board on April 10. Wilson applied for a review of the decision, which was dismissed.
He then took his fight to the High Court, claiming the decision was wrong.
His lawyers argued that his claims of being able to cut off his monitoring bracelet and go to Australia were merely "acts of bravado" and "fanciful".
Justice MacKenzie said the conditions of parole, and of the extended supervision order which will come into force when parole ends, had been designed to address a long-term risk arising from Wilson's pattern of offending, which includes "grooming vulnerable women".
"For these reasons, I hold that Mr Wilson has not demonstrated that the board has erred in its assessment of his risk," he said.
"Having considered the matter afresh on its merits, I record that I would have reached the same conclusion as the board.
"In reaching that conclusion, I have borne in mind the requirement ... to consider the need to protect the community and the class of persons who may be vulnerable to potential grooming.
"For the foregoing reasons, the appeal is dismissed. The final recall order is confirmed."APNZ