Today Nesna University College announced that it will install the Norwegian Child Sexual Abuse Anti Distribution Filter on its DNS-server. This is a continuing of the work started at the Department of Computer Science with Project Getting Involved.
The College is so far the only educational institution in Norway to do so.
So what exactly is this NCSA-filter?
Since November 2004 the Norwegian Child Sexual Abuse Anti Distribution Filter (CSAADF) has stopped an average of 15000 daily page views of children being sexually abused. Every day this filter blocks a large number of Norwegians trying to gain access to child abuse material.
When an internet user types an address in his/her browser or clicks a link to an URL that is in the filter, the ISP redirects the browser to a specific page instead of the desired address – the so called “stop-page”. This contains information about what kind of content the user tried to access, links to Norwegian legislation and contact information for the police. Norwegian police chose to display a page with information about the filter instead of a 404-error, because they want the public to know that the police have evaluated the site in question, and found it to be illegal to distribute. This, they hope, sends a signal that the police have the technical ability to limit the distribution of child abuse material, and hopefully lower demand and thus prevent future abuse of children.
The Swedish and Danish national police have also adopted the filter. The Scandinavian police forces on a national level share all the information about illegal sites, and check them according to local legislation.(1)
(1) The National Criminal Investigation Service