The German Church of Scientology has repeatedly challenged the legality of this surveillance in court . In December 2001 , the Administrative Court in Berlin ruled against the Berlin Office for the Protection of the Constitution and ordered it to stop the recruitment and deployment of staff and members of the Church of Scientology Berlin as paid informants . The court ruled that the use of informants was disproportionate . In 2003 , the same court ruled that it was illegal for the Berlin Office for the Protection of the Constitution to include the activities of Scientology in its report , given that the report did not document any activities that were opposed to the constitution .