From the 1980s until November 23, 2013, calls made to and from Garda Síochána police stations across Ireland were routinely recorded. The practice covered all 26 divisional headquarters and was revealed publicly on March 25, 2014. Justice Minister Alan Shatter, Garda Commissioner Martin Callinan, Attorney General Máire Whelan, and senior civil servants including Brian Purcell and Martin Fraser became central to questions about who authorized the system, who knew about it, and whether safeguards existed. Cabinet minister Simon Coveney said approximately 2,400 physical tapes from before 2008 had been identified, alongside an unknown number of later digital recordings; officials could not identify the listeners.
Callinan had written to the Department of Justice more than two weeks before the March 25 revelations, describing a working group, an inventory of recordings, and consultations with the Attorney General and Data Protection Commissioner. He also ordered non-emergency recordings to stop on November 23, 2013, but the delayed disclosure triggered a constitutional and criminal-justice crisis. Callinan resigned on March 25, 2014, while Taoiseach Enda Kenny faced criticism over his handling of the briefing. A trial involving two men suspected of IRA membership was affected on March 26, and the government established the statutory Fennelly Commission to investigate the recordings and related conduct. The Irish Council for Civil Liberties warned that the episode threatened public trust and the administration of justice.