Paschal Donohoe (Dublin Central, Fine Gael) | Oireachtas source

That would mean that the privilege extended to a Member of the Oireachtas which, as I understand it, means that they cannot or should not say anything that would trigger legal action against them, would also be extended to the work of the commissioner or deputy commissioner. That might apply for example in respect of dealing with a matter that does not concern a Member of the Oireachtas, it could be a public official or a member of the Civil Service.