Chairman of the Garda Síochána Ombudsman Commission Simon O'Brien has said the gardaí and the public can have confidence in his agency.
It follows the part-publication of a report into the leaking of information to a newspaper about an internal investigation into the suspected surveillance of its offices.
GSOC has said the report by Senior Counsel Mark Connaughton concluded that it was unable to confirm the exact source of the leak.
However, it said that it came from a third party attached to the investigation.
Speaking on RTÉ’s Morning Ireland, Mr O'Brien said he had no intention of resigning and that lessons had been learnt.
He said: "We learn from what went on in the past and by the learning from the past you build for the future.
"We want a public and gardaí alike to have confidence in the service we provide. It’s an impartial service.
"It is an important service and I believe that we hold data, we're secure with that data and we want to give confidence to people to come forward."
In May, Mr Connaughton was asked by GSOC to carry out a fact-finding investigation into how information relating to the sweep may have been disclosed to a third party.
The investigation relates to a Sunday Times article, 'GSOC under hi-tech surveillance', which was published on 9 February.