Steps announced by search engines today to stop abusive images of children from showing up are "things that Google already do" to prevent paedophiles from accessing obscene material, according to one obscenity lawyer.
Myles Jackman accused search engines of merely "advertising" the lengths they were already going to in order to prevent the publication of lewd and obscene images of children.
This could have a negative effect on freedom of speech and information on the internet, he warned.
He told Daybreak: "One of the problems that this causes is what searches are going to be prohibited and whether it is under or over-exclusive.
"In other words whether things that shouldn't be filtered out will be and things that should won't be."
Mr Jackman said the algorithm used to filter out obscene images of children was so clumsy that it sieved out his law blog "as pornography, despite being purely text based".