Last week a Danish court ordered the ISP "Tele2â€³ to block its customers access to The Pirate Bay. The decision heated the debate on ISPs Internet filtering, and it now turns out that filtering traffic to The Pirate Bay is actually illegal according to European law.

In last week’s court ruling it was concluded that “Tele2â€³ had assisted in copyright infringement because they give their customers access to The Pirate Bay, thereby copying copyrighted material in their routers. It reads: “The telephone company’s dissemination of access to the www.thepiratebay.org entails the transmission of copyright protected material through the companies routers.”

A crucial factor in the ruling is thus that the ISP commits copyright infringement in their routers when they allow access to The Pirate Bay. An absurd claim of course, and even more serious, it opposes the Infosoc Directive, that formed the basis of the Danish copyright law.

In in Article 5 of the Infosoc Directive it is clearly stated that “copying in routers” is allowed, as an exception to and a limitation of the rights holders’ exclusive rights. Even more so, this is non-negotiable, and every member state of the EU must accept it. Oscar Swartz, an Internet pioneer and writer in Sweden who has been researching the case extensively rightly argues that the Danish court misinterpreted the Directive in this case.

The misuse of the article in question has been confirmed by Cecilia Renfors, a Swedish judge and special governmental investigator who had the assignment to propose new legislation to combat unauthorized file-sharing. “She refers to the former opinion by the Swedish government and reconfirms that a Danish model would NOT be compatible with Article 5.1 in the Infosoc Directive. She also repeats the opinion that the Danish way actually nullifies the whole purpose of that Article,” Oscar writes.

The Danish ISP Business association has decided that they will challenge the decision in court. Ib Tolstrup, the director of the association said in a podcast interview with Computerworld that Tele2 is going to challenge the ruling, as they realize they are the only nation in Europe that talks about “copying in the routers”. Tolstrup further said that, if Denmark wishes to be a top IT nation, the topic must be put on the political agenda because a Google block is not far away if they do not challenge the courts decision.

In a comment to TorrentFreak Swartz said: “I am surprised that the Danish ISPs have simply accepted the rulings in Denmark when they are so obviously illogical and dangerous. The courts say that any network provider performs “copying” in their routers. If that is correct the consequences are enormous and The Pirate Bay and the two other cases in Denmark would just be the beginning.”

Swartz continues: “I think the case shows that we have to fight all the time. Stand up. Not back down. Work hard. Make research. Try to get the message out to media. What I miss in Sweden, and Denmark of course, is professors and lawyers who are also participating in the fight for communications freedom. Like in the EFF in the U.S. where top professors and lawyers donate time and knowledge to support cases in court. Where are they here?”

In a response to the courts decision, The Pirate Bay launched jesperbay.org. The site is named after Jesper Bay, the head of the Danish IFPI, and gives detailed instructions for affected customers on how to regain access to The Pirate Bay.

Interestingly, it turns out that the block by Tele2 didn’t have the effect that the IFPI was hoping for. On the contrary, Pirate Bay traffic from Denmark went up, instead of down. However, this case is about more than The Pirate Bay, it is about censoring the Internet.