Northern Ireland Audit Office
The Northern Ireland Audit Office (NIAO) is an independent public body which was established by the Parliament of the United Kingdom on 18 March 1987. It has overall responsibility for auditing on behalf of the Comptroller and Auditor General for Northern Ireland, across all sectors of government in Northern Ireland, except those reserved to the UK government.
Source: Wikipedia — Northern Ireland Audit Office (CC BY-SA 4.0)