Appointed Commissioner on the 25th November 2014
Commissioner O’Sullivan joined An Garda Síochána in 1981 and has more than 30 years of professional policing experience across a wide range of both operational and administrative function areas and has worked in a broad range of police disciplines at both national and international level.
2000: Promoted to Superintendent and served in the Garda College with responsibility for specialist training and as a Detective Superintendent in the Garda National Drugs Unit.
2003: Promoted to Chief Superintendent and served as Detective Chief Superintendent at the Garda Technical Bureau and also in Human Resource Management.
2007: Promoted to Assistant Commissioner and served in the Western Region followed by Human Resource Management and was appointed Assistant Commissioner, Crime and Security in June 2009.
2011: Promoted to Deputy Commissioner Operations.
2014: Appointed as Commissioner on the 25th November 2014
Graduate of the FBI National Executive Institute (NEI XXXIV) – Executive Leadership Programme designed for Chiefs of Police worldwide (2011)
Advanced Management Diploma (1st Class Hons) – Michael Smurfit School of Business, University College Dublin (2007)
Executive Education Programme – Driving Government Performance, John F. Kennedy School of Government, Harvard University (2007)
Master of Business Studies (1st Class Hons), Michael Smurfit School of Business, University College Dublin (2006)
Fellow of the Chartered Institute of Personnel Development (CIPD)
Certificate in Strategic HRM Development, Irish Management Institute (2005)
Bachelor of Arts Degree (1st Class Hons) Police Management - awarded by HETAC and delivered by Garda College and University of Limerick
Diploma in Addiction Studies, Trinity College Dublin (1992)