Relatives of murdered schoolteacher Jane Longhurst are confident action will be taken to close down sick internet sites.

Jane's mother, Liz Longhurst, and sister, Sue Barnett, presented a five-point plan to Home Secretary David Blunkett in London yesterday.

They said the meeting proved positive.

The plan calls for the Government to work with internet service providers and search engines to block access to the type of violent sites visited by Jane's killer, Graham Coutts.

The family also want Mr Blunkett to make it a criminal offence to possess extreme images.

They want to see better co-operation with law enforcement agencies overseas to close down sites, action against credit card firms who profit from processing payments and regulation of internet images brought under the control of communications regulator Ofcom.

Mrs Longhurst, 72, said: "I was pleasantly surprised at how sympathetic and understanding he was of this particular problem.

"We had a very successful meeting and I am sure he, together with his staff, will be doing something very positive to rid the world and certainly Britain of some of these terrible sites. If Graham Coutts had not had the internet to feed on, I expect my daughter would be alive today."

Ms Barnett said she was confident of winning the campaign.

She added: "It is not going to be overnight. It is something we will have to consider in two or three years' time."

Mr Blunkett pledged to raise the issue with the Bush administration when he visits the US this month. Brighton Pavilion MP David Lepper, who accompanied the family, said the Home Secretary wanted to make the same progress on violent internet sites as had been achieved with child porn.

Coutts, 35, of Waterloo Street, Hove, was jailed for life for murdering special needs teacher Jane, 31, from Brighton, last year.

The night before the killing he visited several extreme web sites.

Coutts had told an ex-girlfriend he would one day kill a woman. He stored Jane's body in a box for 35 days before setting it alight on April 19.

He visited her corpse at a storage unit in Brighton ten times before driving it to remote woodland in West Sussex, where he burnt it with petrol.

The anniversary of Jane's murder is nine days away.