On 2 March 2010, the Federal Constitutional Court of Germany ruled the law unconstitutional as a violation of the guarantee of the secrecy of correspondence.[41] On 16 October 2015, a second law for shorter, up to 10 weeks long, data retention excluding email communication was passed by parliament.[42][43][44] However, this act was ruled incompatible with German and European laws by an injunction of the Higher Administrative Court of North Rhine-Westphalia. As a result, on June 28, 2017, three days before the planned start of data retention, the Federal Network Agency suspended the introduction of data retention until a final decision in the principle proceedings.[45]