- 18 updates
Shadow home secretary Yvette Cooper has accused the Government of "not going far enough" to tackle internet child abuse and of cutting the budgets of the protection agency.
She said the Government's failure to "develop workable proportionate communications data" meant the Child Exploitation and Online Protection Centre cannot track "who is responsible for IP addresses used for abusive child images."
Ms Cooper also called for Mr Cameron to ban depiction of rape in extreme pornography and "stop blocking compulsory sex and relationship education in our schools which could teach all our children zero tolerance of violence in relationships and greater resilience against online abuse."
The Prime Minister has said he will pursue a change in the law if the leading search engines fail to "act responsibly" and do nothing to stop "enabling" the distribution of child abuse images online.
"I'm concerned as a politician and as a parent about this issue, and I think all of us have been a bit guilty of saying: well it's the internet, it's lawless, there's nothing you can do about it," David Cameron told BBC1's Andrew Marr Show.
"And that's wrong. I mean just because it's the internet doesn't mean there shouldn't be laws and rules, and also responsible behaviour," he said.
He said free speech "doesn't mean you have the right to incite child abuse" and added: "If we don't get what we need we'll have to look at legislation."
David Cameron's announcement calling for search engines to block results over child abuse images is symptomatic of the way the Internet is viewed and treated by policymakers, digital rights campaigners said today.
Jim Killock, executive director of Open Rights Group wrote on his blog:
The Prime Minister is expected to say the Government will do "whatever it takes" to tackle the problem of child abuse images on the internet.
David Cameron will urge internet providers hold "hackathons", where software experts collaborate, to produce results.
Mr Cameron is expected to say in a speech tomorrow: "I have a very clear message for Google, Bing, Yahoo! and the rest. You have a duty to act on this - and it is a moral duty.
"You're the people who have worked out how to map almost every inch of the earth from space, who have developed algorithms that make sense of vast quantities of information.
"Set your greatest brains to work on this. You are not separate from our society, you are part of our society, and you must play a responsible role in it".
David Cameron will urge internet providers to "step up to the plate" when it comes to tackling child abuse images.
The Prime Minister will say in a speech tomorrow that "splash pages", which tell people if they are attempting to view illegal images, should also direct people to the charity campaign Stop It Now, in an effort to help change people's behaviour.
Mr Cameron will also warn companies that "legislative options" could be used to force them to comply if they have not made progress on a black list by October.
He was expected to say, "There are some searches which are so abhorrent and where there can be no doubt whatsoever about the sick and malevolent intent of the searcher that there should be no search results returned at all."
David Cameron will tell internet giants including Google they have a "moral duty" to do more to tackle child abuse images found by using their websites.
In a major speech tomorrow, the Prime Minister will call for search engines to block any results being displayed for a "blacklist" of terms compiled by the Child Exploitation and Online Protection Centre (CEOP).
The Government has been involved in negotiations with technology firms over the best way to crack down on child abuse, and the main service providers have agreed to introduce "splash pages" which tell people if they are attempting to view illegal images.
But Mr Cameron will call on firms to go further, with splash screens warning of consequences "such as losing their job, their family, even access to their children" as a result of viewing the content.
Latest ITV News reports
Every household in the UK is to have pornography blocked automatically unless they choose otherwise, under plans announced today.