A high risk paedophile disguised himself as a childrens entertainer so he could sneak into a party and play with kids.
Nathan Kozel, 26, dressed up in goggles, a black outfit, long black coat and black gloves before he entered the National Play Day event, in Queens Gardens, Hull, the court heard.
Rukhshanda Hussain, prosecuting in Hull Crown Court yesterday, said Kozel was trying to pass himself off as a member of staff at the event on August 1.
He said: The area the defendant was in had about 20 children under 16 in it, with some adults present.
He was engaging with them, spinning diablo plates, showing children how to use them.
Staff called police and Kozel was detained.
He admitted he was there to try and make friends with children and said he knew it was wrong.
He was previously made subject of a sexual harm prevention order (SHPO) indefinitely and given a 24 month community order in 2016 after downloading indecent images of children.
Kozel, who was described as a very high risk sex offender, was told he was not allowed unsupervised contact with children but breached the order in August, 2017, when he was caught playing football with a boy, 8.
When he was arrested police found a total of 10 images at category A – the most serious – two at category B, and 631 category C images, on his phone and tablet computer.
Kozels father gave evidence in defence of his son saying he operated as a six or seven-year-old.
He added his son enjoyed doing circus tricks and the clothes he wore at the National Play Day event was his usual dress.
Mr Kozel added his son had been diagnosed with Aspergers syndrome and was of low intelligence.
Kozel, from HMP Hull, admitted breaching a SHPO, breaching a suspended sentence, and making indecent photographs of children.
Recorder Patrick Palmer jailed Kozel for a year, adding: Whilst I have every sympathy for you and your difficulties, I have to protect children from your offending.