A sick pervert travelled 150 miles to meet a 14-year-old schoolgirl intending to lure her into the world of bondage.

Alistair Chapman drove from his home in the west country expecting to meet "Lucy" at the Sandling rail station in Folkestone.

The two had discussed sex, having a baby before she was 15 years old, and being bound with duct tape during kinky sex.

But now a judge has heard how "Lucy" wasn't there to greet him, just members of a vigilante group calling itself Shadowhunters UK.

The 29-year-old fled the station and drove home to Portland - but his car's registration number was noted and reported to police.

Now Chapman has been jailed for three years after admitting four child sex offences and placed on the sex offenders register for life.

The court heard how one of the vigilantes used old pictures of her adult daughter - with her permission - to lure Chapman to Kent.

Prosecutor Paul Valder said that last year Chapman and "Lucy" had been conversing for a month about his desire to tie her up and to make her pregnant.

But in fact it was the vigilante he was talking to about his twisted and sick desires for penetrative sex and bondage.

Chapman claimed it was fantasy but when police went to his home they discovered duct tape. He had also photographed himself in bondage positions.

Some of those images have been released by the vigilant group, as Chapman sent footage to "Lucy" during their chats.

One video shows Chapman wearing women's clothes with bounded wrists and legs.

Another show him with a gag in his mouth.

Jason Dunn-Shaw, defending, said Chapman's relationship with a woman had ended and he turned to on-line games and chatrooms to deal with his depression.

"This was conduct which he can't explain or even understand", he said.

The barrister added his family were shocked and disappointed.

Judge Stephen Thomas said the paedophile had planned to talk the schoolgirl into returning with him to his Wrest country home.

He told him: "Although she didn't exist in real life, she was very real in your own mind and you thought about what you would achieve because you thought she was real..that's a very troubling state of mind."

The judge said the vigilante group had "smoked" him out and confronted him at the station before he fled in his car.

To read more of our in depth coverage of all of the major trials coming out of crown and magistrates' courts across the county, click here.

For information on how we can report on court proceedings, click here.

Read more: All the latest news from Folkestone