"...the growth of broadband services, allowing fast transmission of large amounts of data, and the trend towards remote storage, presented new challenges to police. Computers operated by internet users dabbling in child pornography would potentially be left free of any evidence of illegal activity because images would not be stored on the local hard drive. Mr Berwick said an internet-based discussion facility, called newsgroups, was where most of the web's sexual deviants could be found. But another facility, internet relay chat (IRC), allowing internet users to hold discussions in various channels covering a range of topics, was what most sex offenders used to prey on children. "The chat channels are without a shadow of a doubt the most dangerous place on the internet, particularly for children," Mr Berwick said. Meanwhile, his ACPR colleague, Commander Barbara Etter, said internet cafes could potentially become a major hurdle in tackling cybercrime. She said the issue of users' anonymity made it difficult to link a person to a particular computer that had been used to commit a crime..."FROM http://australianit.news.com.au/articles/0,7204,3998803%5E15318%5E%5Enbv%5E15306,00.html