WATCH: Arrest Of Disability Advocate Accused Of Trying To Meet Schoolgirl For Sex

EXCLUSIVE: A 50-year-old man with two prosthetic legs has been arrested in an elaborate sting by a special police strike force targeting online paedophiles.

Double-amputee and disability advocate Scott Edgar is accused of arranging to meet a 14-year-old girl for sex at her Sydney home.

But the girl he's accused of chatting to online was actually an undercover police officer.

10 News First was given special access to the month-long operation that resulted in Edgar's arrest.

It's alleged Edgar began communicating with the "girl" online last month, before making an arrangement to meet her while her mother was at work.

Police claim he had asked her to wear a school uniform when she opened the door.

Edgar drove two hours from his home in Kurri Kurri, in the NSW Hunter Valley to Sydney for the meeting.

However, he was met by Detectives from the Child Abuse and Sex Crimes Squad's Child Exploitation Internet Unit, who were waiting for him.

Police seized condoms, a razor, coconut oil, a size 8 skirt, and a slinky black top from a bag on the back of Edgar's wheelchair.

"That really disturbs us, it's frightening," Detective Sergeant Richard Long told 10 News First.

It's alleged Scott Edgar began communicating with the "girl" online last month. Image: 10 News First

"Fortunately, we've turned up and he's met us, rather than a 14-year-old girl", he said.

Edgar began visibly shaking when detectives surprised him.

When asked what he was doing at the unit block, he replied "being stupid".

Edgar is well known in Kurri Kurri, after featuring on the front page of the Maitland Mercury earlier this year under the headline "Wheelchair Wonder".

In that article, he discussed the challenges of being a double amputee and his plans to participate in a local 12km race.

He told the paper in 2015 he faced a long battle to have his legs amputated, after suffering from ulcers and blood clots for years.

Edgar was charged with using carriage service to procure a person under the age of 16 for sexual activity. He was refused bail in Parramatta Local Court.

Double-amputee and disability advocate Scott Edgar is accused of arranging to meet a 14 year old girl for sex, at her Sydney home. Image: 10 News First

His is the 51st arrest this year by Strike Force Trawler, which runs regular undercover operations.

"We run these operations to keep children safe," Detective Chief Inspector Chris Goddard said.

"It's frightening if you're a parent of a young child, given we're now into school holidays and some children may be at home alone", he said.

Edgar will re-appear before a magistrate in the new year.