Data retention in Ireland: When European law meets national recalcitrance

This chapter examines the development of data retention in Ireland following the CJEU judgments in Digital Rights Ireland and Tele2 Sverige. It describes how the Irish State continued to enforce national data retention law for six years after Tele2 Sverige confirmed its illegality, attempted to re-litigate the legality of indiscriminate data retention before the national courts, and reformed domestic law only when forced to act by the CJEU decision in Garda Síochána. It assesses how national oversight mechanisms largely failed to address this illegality and argues that the data retention saga has highlighted significant weaknesses in the criminal justice system, the ‘designated judge’ model of supervising surveillance, and the accountability of the executive to parliament.