Monica Ermert writes:
Judges of the Grand Chamber of the European Court of Justice in Luxembourg on 9 July 2013 adamantly asked for proof of the necessity and efficiency of the EU Data Retention Directive.
While the representatives of the EU member states, the Council, the Commission and the Parliament had to acknowledge a lack of statistical evidence, they still demanded the Court to reject the complaints from Digital Rights Ireland, the working group AK Data Retention Austria (who were joined by over 11,000 citizens in their legal action) and individual complainant Michael Seitlinger, an Austrian IT expert.
Read more on Internet Policy Review. (via @TJMcIntyre)
@DaraghObrien also points us to this earlier piece by Glyn Moody that provides more background on the case.