Who gets told about the movements of sex offenders?
Head teachers, doctors, youth leaders, sports club managers and others, including landlords, are notified on a confidential basis of the existence of a local sex offender. But a system of general disclosure is unlikely to happen in Britain. In a recent legal ruling, it was declared that it was in society's interests for the offenders to be allowed to live normal, lawful lives.
What do other countries do?
In America, parents have access to pictures and details of all registered paedophiles. This right is known as 'Megan's Law' after seven-year-old Megan Kanka, who was found strangled near her New Jersey home six years ago. Her parents campaigned for the police to notify communities when paedophiles moved in.
What do Sarah Payne's parents think?
They have endorsed the News of the World's actions, and said that 'life should mean life' for sex offenders. The girl's mother, Sara, said: 'We think anyone who causes harm to a child in this way must be taken out of the community for life.'