D. Miss Nsiah is a qualified chartered accountant who prepares financial statements for a firm located at Tesano. Miss Nsiah does not qualify for a practicing certificate and so she does not provide audit service to the client. This is her first year of preparing financial statements for the firm. When compiling the most recent accounts, she detected some material errors in the previous financial statements. It seemed that the accounts were based on incomplete records as certain costs were excluded, either deliberately or because records were not maintained. The Chief Executive Officer of the firm has also requested some additional work to be completed on a complex tax issue. However, she has no prior experience and does not feel competent to the work. The CEO would also like her to provide an audit opinion as they are planning to apply for funding from a bank and the bank would like some further assurance.

Required: With reference to Code of Ethics for accountants, discuss the ethical principles applicable to the above scenario.