A NEWPORT teenager could be facing custody after he threatened another boy with a knife following an argument on social networking site Facebook, a court heard.

The 17-year-old appeared at Cwmbran Youth Court, where he admitted using threatening, abusive and insulting words, possessing an offensive weapon and possession of cannabis when he was arrested.

Defence barrister Paul Morris told the court how the two boys began saying things about each other on the social networking site, adding: “They were both offering to fight each other on Facebook and he went to sort it out.”

Prosecutor Lisa James told the court how the defendant visited the home of the other boy, enticing him to fight and threatening his family members.

He then left and returned 15 minutes later with a kitchen knife, pointing it at one of the victim’s relatives and shouting “Shut your mouth. If you call the police, I’ll shove this in your neck”.

The incident happened earlier this year and when the boy was arrested a few days later, he admitted taking the knife, saying he’d had “an adrenaline rush”

and took it from his own home.

But, he told police: “I wouldn’t have used it, I would have knocked him out and stamped all over him. I don’t use knives.”

When he was arrested, he had cannabis in his possession and the boy told police “I was about to roll a spliff”.

When asked to explain his behaviour by chairman of the bench Brian White, the boy said the other teenager had pulled a knife on him first.

Mr White said: “Knife crime is treated very seriously and it’s highly likely you’d be going to jail if you were an adult. I will adjourn this matter for a pre-sentence report and won’t rule out custody.”

The teenager will be sentenced on August 27.