(1) In this section -
"affiliate" in relation to an auditor, means a firm, body corporate or partnership considered under section 182(2) to be an affiliate of the auditor at the relevant time;
"amount of turnover" and "balance sheet total" have the same meanings as in section 8 of the Companies (Amendment) Act 1986;
"internal audit" means an examination of the internal control system of a public limited company, a large private company or a relevant undertaking that is conducted within the public limited company, large private company or undertaking or otherwise at the request of its audit committee, directors or other officers;
"internal auditor" means a person who conducts an internal audit;
"large private company" means either of the following: (a) a private company limited by shares that, in both the most recent financial year of the company and the immediately preceding financial year, meets the following criteria: (i) the balance sheet total of that company exceeds for