20(1)A reference in subordinate legislation (within the meaning of the Interpretation Act 1978 (c. 30)) to the clerk to a police authority has effect as a reference to the chief executive of the authority.
(2)A person holding office as clerk to a police authority on the commencement of paragraph 18 continues in that office as chief executive of the authority.
(3)In this paragraph “police authority” means—
(a)a police authority established under section 3 of the Police Act 1996 (c. 16);
(b)the Metropolitan Police Authority.