Authorities can impose so-called „detection orders“ against providers of interpersonal communications services. This means that authorities can, for example, oblige messenger services to monitor the communications of all their users. It is sufficient that the authority has identified a significant risk that the service in question is being used for the dissemination of depictions of sexual violence against children. Detection orders do not have to be limited to monitoring the communications of specific users who are under suspicion. Instead, authorities can order that the content of all communications of all users of the service be monitored preventively.