Criminologist Mark Williams-Thomas has told Daybreak that "there needs to be an international approach to tackle child abuse images on the internet."
Mr Williams-Thomas was the man behind the ITV Exposure documentary which originally aired the abuse allegations against disgraced presenter Jimmy Savile.
Technology giants and the Government have agreed a new approach to tackling online child abuse images.
A former Child Exploitation and Online Protection Centre chief is sceptical about what the summit to tackle child abuse images will achieve.
The volume of images of child abuse may have grown slowly, but their numbers now represent a change of a horrifying nature.