On March 2, 2010, the German Federal Constitutional Court ruled that the mass storage of telephone and Internet data for law enforcement purposes is unlawful in its current form.
Since 2008, the challenged law has required telecom companies to retain data from telephone, email and Internet traffic, as well as mobile phone location data, for six months. This information may be retrieved for law enforcement and safety purposes. Constitutional claims were brought before the Court by nearly 35,000 citizens, representing the largest mass claim proceeding in German history.

