Exchequer and Audit Departments Act 1921

2 Examination of accounts of receipts of revenue

(1) The accounts of the receipt of revenue by the Departments of Customs and Excise, Inland Revenue, and Post Office, and the accounts of every receiver of money which is by law payable into, the Exchequer, shall be examined by the Comptroller and Auditor General on behalf of the House of Commons in order to ascertain that adequate regulations and procedure have been framed to secure an effective check on the assessment, collection, and proper allocation of revenue, and the Comptroller and Auditor General shall satisfy himself that any such regulations arid procedure are being duly carried out.

(2) The Comptroller and Auditor General shall make such examination as he thinks fit with respect to the correctness of the sums brought to account in respect of such revenue as aforesaid, and shall, together with his report on the appropriation accounts of the departments concerned, present to the House of Commons a report on the results of any such examination.