A TWISTED teenager subjected his aunt to a barbaric seven-hour torture ordeal after trussing her up with wire and duct tape.

Drink and drug-addled Dean Flynn, 17, gagged her, cut her with a knife and burned her with a cigarette, while demanding money.

At one point a plastic bag was placed over her head.

Merciless Flynn even humiliated his aunt by refusing to untie her to allow her to go to the toilet, insisting on undressing her himself and watching her throughout.

During the next two months, the small-time criminal enforcer also beat a boy on the head with a hammer, stabbed a woman repeatedly in the legs and slashed a man in the street, Dumbarton Sheriff Court heard on Wednesday.

Fiscal depute Lynn Jamieson told the court of Flynn"s attack on his aunt in December last year, just a month after his 17th birthday.

Ms Jamieson said Flynn text his aunt at 2am wanting to sort out an argument they had had earlier.

In separate incidents the court was told how Flynn entered a different woman"s house and stabbed her repeatedly in the legs - slashing her hand as she put it up to protect her face - apparently trying to collect a debt.

Ms Jamieson then told how Flynn punched a 15-year-old boy before beating him with a hammer on the back and side of his head.

In another example of Flynn"s crazed behaviour he slashed Michael Davie, a known petty criminal, slicing through the man"s ear and cutting an artery.

Flynn pled guilty to holding his aunt against her will and assaulting her at McAllister Road, Alexandria, on December 18 last year.

He also pled guilty to assault with a knife at O"Hare, Bonhill, on January 6 this year, assaulting a boy with a hammer at Westcliff, Dumbarton, on February 13 and to attacking a man with a knife in Clyde Court, West Bridgend, on February 16.

Roddy Boag, defending, said Flynn should be given credit for pleading guilty before a trial commenced.

Flynn, care of Greenock Prison, was sentenced to three years and nine months in jail, with an extended sentence of two years on licence when he is released.