A new international police collaboration aims to deter and track Internet paedophiles.

As part of Operation Pin, police in Britain, North America and Australia have set up websites that promise porn.

Visitors that attempt to search for child porn are told that this is illegal, and are warned that Interpol may now circulate their details to 180 countries.

Operation Pin follows the high-profile Operation Ore, in which 3,205 computers have been searched for child porn, and 723 people charged.

Operation Pin aims to scare and deter people from looking at child porn online, and to disrupt the market in pornographic images.

www.nationalcrimesquad.police.uk