A GWENT teenager could face being locked up after he was found guilty of breaching an anti-social behaviour order imposed on him two years ago.

A warrant was issued for the arrest of Peter Oliver Wainfur, 18, from Newport, after he failed to appear at Abergavenny magistrates yesterday to face charges of criminal damage, carrying an offensive weapon and breach of an anti-social behaviour order.

He was found guilty in his absence of breaching the order by causing harassment to one of his former neighbours and being in an area from which the order bans him.

Wainfur now faces a community punishment order or imprisonment when he appears before Caerphilly magistrates at a date to be confirmed.

Magistrates heard how on June 28, Wainfur, of Butterworth Close, Ringland - a subject of Newport's first ASBO proceedings - threw a brick through the window of a house in Palm Square, Somerton, belonging to Gwyneth Johnson-McLoughlin.

Wainfur denied the attack at an earlier hearing.

Mother-of-four, Mrs Johnson-McLoughlin, 48, who testified in the original ASBO hearing in February 2002, described how she heard a loud bang just after midnight.

Her son, John Johnson, 24, also testifying, confirmed a brick hit his bedroom window.

Ms Johnson-McLoughlin said she then telephoned the police. Approximately 20 minutes later, the court heard, another brick was thrown, this time smashing a downstairs window.

Mr Johnson told told prosecutor Paul Latner he ran to the front door and saw Wainfur walking away from the family's house towards the garden gate, holding a "small black knife."

"I shouted something like what the hell did you do that for? He said he had had an argument," said Mr Johnson.

Mr Latner asked Mr Johnson if he was sure he saw Peter Wainfur, and that he was carrying a knife. He replied: "I'm sure."

Both witnesses told the court they had known Wainfur since his family had moved into Palm Square, about 16 years ago.

Magistrates heard Wainfur ran away from police when they arrived at Palm Square shortly after the incident, before being detained at about 1.30am. During an interview with officers, he said this was because he knew he would be blamed for the attack.

Wainfur admitted to police he was at his mother's address - opposite Mrs Johnson-McLoughlin's house - on the night of the incident, but denied leaving the house all night.

He was found guilty of breaching an anti-social behaviour order, criminal damage, and carrying an offensive weapon.