4/7/2017 Disclosures Tribunals. Garda whistleblower Sergeant Maurice McCabe (right), arriving with his legal team including barrister, Senator Michael McDowellf (2nd left) or the first day of public hearing at the Disclosures Tribunal in Dublin Castle. The Disclosures Tribunal, is investigating allegations of a senior Garda smear campaign against Mr McCabe. Photo: Eamonn Farrell/RollingNews.ie