A man who force-fed sedative laced chocolates to a German backpacker he lured to work on a farm before raping her in a shearing shed could re-offend, psychiatrists say.
Peter John Van de Wetering was sentenced to nine years behind bars after pleading guilty over a brutal attack that was compared to the Australian horror film Wolf Creek.
Queensland's attorney-general has launched a Supreme Court bid under sexual offenders legislation to keep Van de Westering in custody after he's due to be released on October 6.
Van de Wetering collected the 19-year-old from a bus stop near Cottonvale, southwest of Brisbane, in August 2013 after she responded to his online job advertisement for a nanny and farmhand.
The now 56-year-old spent months planning the ordeal, scouting a remote location and buying fake facial hair for a disguise, the Brisbane District Court trial heard in 2016.
After the teen stashed the odd tasting chocolate in her bag during the drive, Van de Wetering bound her hands with cable ties.
He took her to an isolated shearing shed and force-fed her more of the laced chocolates.
The following day she woke up before sunrise alone and without underwear on the side of a road near Stanthorpe.
Psychiatrist Karen Brown told the Supreme Court on Monday that Van de Wetering had a propensity to lie and deceive, and she considers him an untreated sex offender.
She could not be confident that he would adhere to supervision conditions and not re-offend.
"Partly because I think his risk is high but partly because I don't really understand what drove the offending in the first place," she said.
"I do know that it was planned, it was associated with a considerable amount of deceit and I think could happen again."
Dr Brown regarded Van de Wetering's account of being motivated by wanting to deter backpackers from taking jobs as highly improbable and it difficult to believe the offending was not sexually motivated.
“I don’t understand why he chose to offend in the way that he did if the primary motivation was to try and secure himself work.”
Psychiatrist Michael Beech also said there was a lack of information about Van de Wetering's intention in committing the crime.
"If he's going to re-offend I don't think it's going to be a trivial sexual offence. I think it would be a serious sexual offence," he told the court.
The court heard Van de Wetering was a model prisoner who had a single conviction for sexual offences and had referred to his main form of employment as an adult as crime and shoplifting.
The hearing before Justice Catherine Muir continues.
1800 RESPECT (1800 737 732)
National Sexual Abuse and Redress Support Service 1800 211 028
