The current version of the Act on Electronic Communications and its implementing Decree No. 485/2005 Coll. have recently been amended following a decision of the Czech Constitutional Court which proclaimed a certain section of the Act, and the Decree as a whole, as unconstitutional in the context of the issue of e-privacy. Specifically, the Court ruled that the existing regime for collecting localisation and communication data (data retention) is excessive, disproportional and in breach of fundamental constitutional principles. A revised version of the Electronic Communications Act reflecting the Court's decision has now come into effect. The controversial provisions are omitted in their entirety, in the light of the Court's opinion that any such collecting of traffic and localisation data is undesirable.