The banking inquiry will resume hearings today on the role of the Central Bank and financial regulator in assessing risk in the run-up to the financial crisis.
Mary O'Dea, who worked in the Financial Regulator's office between 2003 and 2011, will face questions from the committee during the first session this morning.
This afternoon, the inquiry will hear from deputy governor of the Central Bank Cyril Roux and chief economist Thomas O'Connell.
They will be quizzed on the use of supervisory powers within the bank, and the adequacy of their assessment of the risks it faced.
Chair of the Committee Ciarán Lynch said the purpose is to add further understanding to how the Central Bank was behaving before the economic crisis developed and to examine the mindset at the lower management level regarding the issues being faced.