A convicted sex offender who used to advise judges on how to deal with paedophiles has been jailed again after he was found with thousands of sick videos and photos, including a 'Paedophile manual'.

Stephen King, 68, pleaded guilty to six charges, including possessing indecent images of children, nearly 3,000 of which were the most extreme kind.

Included were 85 videos in the worst category, which included a baby being sexually abused.

He was also caught in possession of a ‘paedophile manual’ at a house in Richmond on May 1 which “contained guidance about abusing children sexually”.

King was sentenced today (September 25) to 20 months in prison, the most lenient possible, due to his ill health - he recently suffered a heart attack and a stroke.

The 68-year-old was also charged with meeting up with another sex offender in Richmond, which he was prevented from doing under a sexual harm order, but pleaded not guilty to this charge, which will lie on file.

King, of Herne Hill, who appeared at Kingston Crown Court via video from Wandsworth Prison, was convicted in 2004 of more than 20 of sexual offences, including having sex with a girl under 13 years old.

Previous to his first conviction, he had given government agencies and judges advice on protecting youngsters from child molesters, and even suggested jail terms for child sex offenders.

After being released from prison, King was staying at a house in Richmond.

In May, King tried to contact a six-year-old girl, something he was prevented from doing under a sexual harm order.

He was arrested and charged on May 1. After admitting the charge, he was sentenced to eight months in Wandsworth Prison.

On May 3, two days after he was arrested, a cleaner in the house he had been staying at found a black suitcase. After asking the other tenants if it belonged to them, she concluded it must have been King’s.

She brought it to Richmond police station, where he was brought after the arrest, and police found thousands of indecent images on memory sticks, along with letters purporting to be from children who had sex with him and “enjoyed it”.

No child has been connected to the letters, and his defence lawyer Peter Cordwell said the letters were “self-penned”.

There was also “extreme” bestiality images on the memory sticks.

Judge Judith Coello described the images found in King’s possession as “disgusting and debauched”.

Sentencing, she said: “By engaging in this type of activity you and others like you are providing a market for a heinous crime.

“You encourage those who make these images to continue making them.

“People like you are an absolute menace to decent society.”