15 questions the Oireachtas committee wants answered

Why did An Garda Síochána not seek data from the medical bureau for either its southern or national audit in 2015 and 2016, as they eventually did in February 2017, even though the medical bureau had informed gardaí in July 2014 of discrepancies identified in its data?
An Garda Síochána stated on March 23 that the 2016 review was unable to reconcile the Pulse data and its paper-based breath test data, primarily due to significant gaps in the manually recorded breath test data. When did gardaí first become aware of this inability to reconcile the Pulse data and their paper-based breath test data?