A Queensland couple who bashed a man with a tyre iron, shocked him with a cattle prod and shot him in the testicles with a gel blaster have been handed jail sentences.
Mark Donald McDonald, 40, and Helene Irene Wigfull, 37, pleaded guilty in the Brisbane District Court on Friday to a slew of charges including deprivation of liberty, extortion and assault occasioning bodily harm while armed.
The court found the "harrowing cruelty" inflicted on the 26-year-old victim was sparked by a "perceived" debt, and was an act of revenge and vigilantism.
McDonald abducted the victim on July 31 last year as he was leaving a mate's house.
The victim was forced into a car driven by Wigfull with the doors locked to stop any attempt to escape.
McDonald hit the victim in the head and legs with the tyre iron before taking him to the couple's Darra home.
In a granny flat, the complainant was assaulted and interrogated over several hours in a "persistent and cruel" attack.
The victim was beaten, shot in the chest and testicles with a gel plaster, and shocked with a cattle prod.
While the court found McDonald was the main offender, Wigfull was found to have actively encouraged the assault.
During the assault, the victim was asked if he had any family members who would "pay to keep him safe".
A photo of the injured man was sent to his father with a demand for $5000 cash.
Police were called and found the victim wearing just his underpants under a pile of pillows.
The pair initially denied the assault and tried to minimise their roles when interviewed by police.
Judge Gary Long described the attack as serious offending, particularly in its "persistence and cruelty".
"The protracted nature of your offending and obviously harrowing cruelty directed at the victim and the fact that it extended to extortion directed to his wider family must be reflected in the sentence," Judge Long said.
"There is an element of retribution or what is often referred to as vigilantism involved."
Wigfull was sentenced to two years' imprisonment but granted immediate parole.
McDonald, who was on bail at the time of the offending for serious drug offences, was sentenced to a three-and-a-half-year sentence to be served on the top four-year-and-six-month sentence he is already serving.