A pervert could be kept behind bars until 2017 after breaching the terms of a sexual offences prevention order.

Andrew Newbury was sentenced to four years in jail with an extended licence period of three years when he appeared at Liverpool Crown Court on February 7 last year for sex offences.

Under the terms of the sexual offences prevention order imposed for life, he was banned from having unsupervised contact with children under 16.

But within three months of being released in April this year and moving to Dartford, youngsters were regularly visiting his flat.

The 24-year-old was recalled to prison and could now have to serve the full extended sentence totalling seven years.

Nina Ellin, prosecuting, told Maidstone Crown Court Newbury started his "sexual offending career" when he was 15 by molesting boys.

"Since then he has breached a number of sexual offences prevention orders," said Miss Ellin.

A police officer went to Newbury's flat in Lowfield Street in the early hours of July 5 after receiving reports about children under 16 being there. One was aged 14.

"Enquiries revealed that young people attended the flat on numerous occasions," said the prosecutor. "It was suggested they did a bit of cleaning work for him."

When arrested, Newbury asked a young boy present if he would look after his flat and dog for him.

When the officer returned, a young boy was there with his 15-year-old girlfriend.

Andrew Newbury was locked up at Maidstone Crown Court

Jailing Newbury for eight months for the breach, Judge Jeremy Carey said Liverpool Crown Court had recognised he was a dangerous sex offender.

"I come to the conclusion you are someone who remains extremely troubled, confused and potentially dangerous in your sexual preferences and determination and there has not been any effective treatment since you were sentenced in 2011," he said.

"You did not have any sex offender treatment in custody because you were not willing to admit you had been a sex offender. That is regrettable, because you badly need assistance and treatment.

"Crucially, you have foolishly declined the assistance of the probation service prepared to offer you a community-based support scheme."

Judge Carey said as long as Newbury did not receive treatment he would remain a danger.

He had an appalling history, having been abused as a child and having no family support, he added.

The judge said his sentence would not make any difference to the time to be served, as Newbury had been recalled on licence.