A data stick full of child porn fell out of a pervert’s bottom in Islington Police Station.

Eliott Diffley, 24, faces 12 months in jail after pleading guilty to 17 counts of possessing indecent images of children and one count of possessing an extreme porn image at Blackfriars Crown Court today.

On October 26 last year, Pc Crossnan was on the beat in Parkhurst Road, Holloway, when he smelt cannabis.

Diffley was smoking, and threw something away as the officer approached.

Pc Crossnan searched him and found two mobile phones - one of which was reported lost or stolen – and arrested him for handling stolen goods.

When he was searched again at Islington Police Station, a USB data stick dropped from his buttocks.

Diffley said he had stolen it from an internet cafe and was further arrested for theft.

Officers looked on the data stick and found indecent images of children. A search of Diffley’s home then turned up a large quantity of similar images of children.

The following investigation found the data stick had not been stolen, while an internet search history showed he had actively been looking for images of children.

Diffley was charged on June 12.

Pc Crossan said: “This case has been dealt with the upmost professionalism by all of the officers involved. People have preconceptions of the type of person who commits this type of crime and Mr Diffley challenges that idea.

“The public should be reassured that investigation into any form of child abuse is taken very seriously and we will work tirelessly to bring offenders like Diffley to justice.”

Diffley, of Leighton Road, Kentish Town, will also now have to sign on the sexual offences register.