It is important for public authorities to have knowledge of the domain name system and what possibilities and restrictions different measures mean.
How to remove illegal services or illegal content
The only effective means of making an unlawful service entirely inaccessible without negatively affecting third parties, is to remove the content or shut down the service. This can only be done where the service or content is located. In cases where it is difficult to access the content, the prosecuting authority and the courts may take action against the address pointing to the content, i.e. the domain name.