Auditing is an independent checking, investigation, examination and expression of the books of accounts and vouchers of a business enterprise with a view to enable the appointed auditor to report whether the trading, profit and loss accounts and balance sheet are properly drawn up so as to show a true and fair view of the state of affairs and the profit or loss of the business according to the best information and explanation obtained by the auditor and that they comply with the laid down rules and regulations of the statement of standard accounting product (SSAP) and other statutory regulations. Internal control system: This can be described according to auditing guideline (AG 204) as “the whole system of controls, financial and otherwise, established by the management in order to carry on the business enterprise in an orderly and efficient manner, ensure adherence of management policies, safeguard its assets and secure as this as possible the completeness and accuracy of records” therefore this involves both internal check and audit.

Internal Check: This briefly refers to the method (techniques) of organizing and arranging the entire operation of office, factory and en housing and the duties of respective staff so that risk of fraud, errors, irregularities and mismanagement will almost be impossible without conclusion. That is day-to-day transactions, segregation of duties and job performance in an organization. Internal Audit: This is refers to an independent appraisal of activities within the organization of the check of certain operations as a service to the management, therefore, it is the management control to functions by the means of evaluating and measuring the efficiency and effectiveness of other controls or checks. Meanwhile, the internal audit will ensure that some specific routine work are carryout by the departments and that the laid down procedures is adequately carry-out by all applicable areas as well as making recommendations to the management.


Auditing in its daily and primitive stage can in an existence since 16th Century, start when the first relationship began between those who provided capital and those who managed the business. Moreover, the innovation of joint stock companies has enormously widened the possibility of raising capital for industry. As a result of the limited liability of the shareholders, it become possible to offer shares for subscription to the public and thus, the availability of capital to both industry and commence. “Stewardship” Meanwhile, under the company from of business enterprises, the shareholders as a person, delegate the management of the enterprise to the board of directors and practically, the board submits to the shareholders the account of the enterprise so that its members may see a true and fair view of the financial position and the profit and loss undertaking. Thus, in 19th century, the greatly arose and by the shareholders as a body to appoint an auditor that will help in the presentation of statutory financial statement of the board of directors in order to show true and fair view of the financial position of the company. However, in 20th century, mandatory provision as requirement made for the audit to limited liability accounts and presentation of audit report to numbers by the company acts in Nigeria have company or companies and Allied Matters Act (CAMA) 1990.


This study is basically concerned with discussing and appraising an assessment of effective internal audit and control in the public sector. And also how to answers some related questions like; – How has the effective internal audit and control affected the public sector over some years? – How Does the effective system of internal audit control affect management policies towards records keeping, risk of fraud and errors, mismanagement, job functions and proper coordination. – How does the system take care of vouchers, payable, bank reconciliation statement and prevention of over-payment as well as


  1. To clearly demonstrate the impact effective internal control and audit in the public sector. 2. To clearly and effectively specify the adequate control and management mechanisms to put in place in the public sector. 3. To indicate the performance scope of internal control and audit in the public sector towards quality of financial information, organization’s growth, improving it efficiency at the costs lower as possible improvement of social environment. 4. To clearly explain the system audit general description as to executive a continual analysis of a central authority. And organization’s reporting monitoring team thus the management. 5. To make possible contribution to human knowledge as well as reduction or prevention in management, risk of fraud, irregularities and errors.

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