Matthew Hobday was trusted by most people who knew him at two creches where he worked in Brighton.
But he has now pleaded guilty at Lewes Crown Court to making indecent photographs of children.
He has been barred from working with children again and placed on the sex offenders register.
Yet Brighton and Hove City Council, which is the education authority, was given warnings three years ago that he was unsuitable to work with children.
This shocking case shows you can never be too careful when making checks on people who are due to work with children.
But there is also a duty on those with suspicions to provide as much information as possible so the authorities can investigate properly.
In this case, the man who alleged, correctly, Hobday was a danger refused to give many details of exactly why he was so concerned.
Hobday visited scores of child pornography web sites and downloaded hundreds of images.
He does not appears to have abused any children but he clearly is not a man who should be working with them.
Sadly, it seems many men resort to seeking gratification from image of children on the internet and youngsters need full protection.
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